Jan 2008 JMS arngd1.p65 - Journal of Medical Society, RIMS Imphal

EDITORIALMessage from the new editorDr. L. Deban Singh,Editor, JMS.Dear Members,I, on behalf of the Journal of Medical Society(JMS), RIMS, Imphal wish you all a “Happyand Prosperous New Year 2008”.First of all, I express my heartfelt thanks to allof you for giving me the responsibility as theeditor for our esteemed journal.The journal has earned credibility amongst allthe readers and institution during a short periodof time. It is my great pleasure to lead ourjournal as a first editor by an anesthesiologist.I will sincerely try my level best to make it asone of the reputed journals in the country.Besides having a few publications and paperpresentation in various journals, conferencesand my long association with the JMS andwhole hearted willingness to serve as Editorof JMS, it will be a great opportunity for me toguide the journal as a part of continuingresearch in various specialities of medicalsciences.It is my intension that all manuscripts will alsobe subjected to peer reviewer who is an expertin the field. The identity of the author andinstitution will also be concealed so that thereviewer has no bias on the paper concerned.Once more, I request all the authors to followstrictly the “ Instructions to authors” insertedin every January issue.The first issue under my Editorship as 22 ndvolume of the journal is coming up in the monthof January 2008. I believe that the members ofthe society, authors, peer reviewers, editorialboard members and advertisers will continueto help the editor with constructive advice touplift the journal.My thanks are due to outgoing editorial teamled by Dr. Y. Indibor Singh who has worked sohard for the past 2 years.Once again, I agree that I will work upto yourexpectations with honesty and transparency.JMS * Vol 22* No. 1 * January, 2008 1

ORIGINAL ARTICLESeroprevalence of TORCH in women with still birth in RIMS hospital1Kh.Sulochana Devi, 2 Y.Gunabati Devi, 2 N.Saratkumar Singh, 3 A.Meina Singh, 2 I.Dorendra SinghAbstractObjective: To detect infections withToxoplasma, Rubella, CMV, HSV (TORCH)among women with still birth by demonstratingIgM & IgG antibodies against TORCH complex.Methods: 43 women with still birth werescreened for IgM and IgG antibodies by usingELISA test (Equipar Diagnostica, Italy).Results: IgM antibodies for Toxoplasma,Rubella, CMV & HSV were found in 4 (9.3%),3(6.9%), 10(23.26%) and 9(20.93%) of thecases respectively indicating primary infection/relapse (CMV, HSV) during pregnancy. IgGantibodies for Toxoplasma, Rubella, CMV &HSV were found in 25 (58.14%), 29 (67.44%),31 (72.09%) and 29(67.44%) respectively.Conclusion: Routine antenatal screening forTORCH antibodies for women with badobstetric for early diagnosis and propermanagement is suggested.Key words : TORCH, Rubella, CMV, HSV,Toxoplasma, Still birth.IntroductionFetal demise is a traumatic experience for boththe parents and the obstetrician. Despite theadvances in the field of perinatal medicine,significant number of stillbirths continue tooccur. Primary infection with Toxoplasma1. Department of Microbiology, 2. Deptt. of Obst. &Gynaecology, 3. Deptt. of Pathology, RegionalInstitute of Medical Sciences (RIMS), Lamphelpat,Imphal-79504, Manipur, India.Corresponding author:Dr. Kh. Sulochana Devi, Professor, Department ofMicrobiolgy, RIMS, Imphal - 795004, Manipur, IndiaPhone : 9436037996. e-mail:sulo_khu@rediffmail.com2gondii, Rubella, Cytomegalovirus and Herpessimplex virus (TORCH complex) duringpregnancy at various stages can lead tocongenital infections with unfavourable fetaloutcome in the form of spontaneous abortions,intra uterine death, intra uterine growthretardation, still birth, early neonatal death andcongenital malformations. 1 Unfortunately thematernal infections are initially asymptomaticor mild so much so that most women areuncertain about whether they have ever hadit. 2 Therefore diagnosis of acute TORCHinfection in pregnant women is usuallyestablished by detection of specific IgMantibodies against TORCH complex. Thepresent study aims at the detection of TORCHinfection in women with still birth by detectingIg M and IgG antibodies.Material and methodsThe present study was carried out in theDepartment of Microbiology, Regional Instituteof Medical Sciences (RIMS), Imphal, duringJanuary 2002 to September 2003.Serum samples from 43 women with still birthwere screened for TORCH IgM and IgG antibodiesby using ELISA test ( EquiparDiagnostica, Italy) following manufacturer’s instructions.Absorbance reading was taken at450 nm filter ( referencing at 650 nm ). Theactivity index (A1) values of the controls andserum samples were read from the standardcurve prepared for each run.ResultsIn the present study, the women with still birthwere between 20 to 40 years. Table 1 showsthe distribution of TORCH antibodies in womenJMS * Vol 22 * No. 1 * January, 2008

ORIGINAL ARTICLEwith still births. Out of 43 women 4 (9.3%) werepositive for IgM Toxoplasma antibody, 10(23.26%) were positive for CMV Ig M antibody,3 (6.9%) women were positive for Rubella IgMantibody and 9 (20.93%) were positive forHSV IgM antibodies. IgG antibody alone waspositive in 25 (58.14%) cases for Toxoplasma,29 (67.44%) cases for Rubella, 31 (72.09%)cases for CMV and 29 (67.44%) cases for HSVindicating past infection.Among 26 women who were positive forTORCH IgM antibody mixed infection of all fourTORCH was found in 1, Rubella and HSV in1, Rubella, CMV, HSV in 1 and CMV & HSV in 4.Most of the women belonged to low socioeconomicstatus (71%) and were illiterate(62%). Congenital malformation was found in3 cases.Table 1. Serological analysis for TORCH antibodiesin women with still births.Serological analysis No.of positive PercentageToxoplasma GondiiIgM alone 1IgM & IgG 39.3IgG alone 25 58.14RubellaIgM alone 1IgM & IgG 26.98IgG alone 29 67.44CMVIgM alone 2IgM & IgG 823.26IgG alone 31 72.09HSV I & IIIgM alone 1IgM & IgG 820.93IgG alone 29 67.44DiscussionPrimary infection with TORCH complex leadsto spontaneous abortions in about 20% ofpregnant women and about 80% of these\\\\occur within 2 to 3 months of gestation. Theprevalence of Toxoplasma varies from placeto place depending upon the food habits andassociation with pets like dogs and cats. Inour present study Toxoplasma IgM antibodywas found in 9.3% of the mothers having stillbirth which is comparable with the study ofTurbadkar D et al 1 who reported 10.5%positivity among women with bad obstetrichistory. Bhatia VN et al 3 and Rajendra B et al 4reported the prevalence of antibodies ofToxoplasma in 12% and 14.66% respectively.The greatest risk of congenital Toxoplasmosisoccurs during the first trimester of pregnancy.However it is during the third trimester that thehighest level of transmission occurs. This isthought to be related to the much larger sizeof the uterus. The transmission rate from amaternal infection is about 45%. Of this 60%are subclinical infections, 9% result in deathof fetus and 30% have severe damage suchas hydrocephalus, intracranial calcification,retinochoroidittis and mental retardation. 5Rubella infection during pregnancy can leadto congenital infections like cardiovasculardefects, eye defects, deafness and it maycause preterm delivery and still birth. In India10 to 20 % of women in the reproductive groupare susceptible to Rubella. 6 In our study 6.9%of women were positive for Rubella IgMantibody sugessting acute infection and 67.4%of women were positive for IgG antibodyindicating past infection. In a retrospectivestudy of 7484 blood samples for Rubellaantibody over a period of 15 years (1988-2002)at NICD, Delhi, the immunity status amongchild bearing women was as low as 49% in1988 and there was steady rise over the periodwhere it was 87% in 2002. However 10 to 15%of women reached childbearing age groupwithout developing immunity. 7Seropositivity rate for CMV Ig M in our studywas 23.26% which is much higher than 8.4%of Turbadkar D et al 1 in women with badobstetric history but comparable with 26.7%of another study 8 . Primary infection with HSVII and I acquired by women during pregnancyaccounts for half of the morbidity and mortalityamong neonates. The other half results fromreactivation of old infection. 1 Sero positivityrate for HSV IgM among women with stillbirthJMS * Vol 22* No. 1 * January, 2008 3

ORIGINAL ARTICLEStudy of empyema thoracis in RIMS hospital1Th. Chito Singh, 2 Ksh. Kala Singh, 2 M. Birkumar Sharma, 2 Th. Sudhir ChandraAbstractObjective: Empyema thoracis remains acommon thoracic problem with challengingmanagement strategies. We reviewed ourexperience to outline key aspects of thepresentation, management and outcome of thiscondition in our hospital. Methods: Weanalysed 81 consecutive adult patients, aged18 to 71 years, treated for empyema thoracisover a period of 3 years at Regional Instituteof Medical Sciences (RIMS), Hospital, Imphal.Results: Most of the patients had symptomsattributable to their empyema, with dyspnoeaon exertion being the most common symptoms(95.1%). Broncho-pulmonary infection was themost common aetiological factor, in which65.4% had been treated for pulmonarytuberculosis. Therapeutic thoracentasis wasperformed in six patients, tube thoracostomyin 76 patients and decortication in 52 patients.Decortication was the most successful modeof treatment. Conclusion: Early adequatesurgical drainage and full lung expansion arethe aim of the treatment in empyema thoracis.Success of the operative procedures dependson the stage of disease.Key words: Empyema thoracis, chestdrainage, decortication, pneumonia.IntroductionEmpyema thoracis represents a continuum of1. Registrar ; 2. Associate Professor, Department ofSurgery, Regional Institute of Medical Sciences (RIMS),Imphal.Corresponding author:Dr. Th. Chito Singh, Department of Surgery, RIMS, Imphal.Email: thokchomchito@yahoo.co.indisease ranging from thin pleural fluidmicroscopically contaminated by organisms togross purulence with dense deposition of fibrinand scar within the pleural cavity entrappingthe lung. Hippocrates in 600 B.C. definedempyema thoracis as a collection of pus in thepleural cavity and advocated open drainageas its treatment. 1 Since then the managementof this condition has posed a challenge to theclinicians.Different well established therapeuticmodalities - aspiration, lavage, debridement viavideo assisted thoracoscopic surgery,intrapleural fibrinolytic therapy, decortication,thoracoplasty and open window thoracotomyare to be considered in the light of the triphasicnature of the disease. These procedures haveall been used with varying success ratesranging from 10% to 90%. 2,3 The success ofthe procedure involved depends on the stageof the disease at presentation, age of thepatient, associated comorbidity and generalcondition of the patient. No single-stageprocedure is suitable for treatment of thoracicempyema.We reviewed our experience in empyemathoracis with special attention to the clinicalprofile, procedure used and success rate ofeach procedure.Material and methodsEighty one patients of empyema thoracistreated in RIMS Hospital, Imphal were studiedover a period of three years (Jan 2004 to Dec2006). All the patients were between the ageJMS * Vol 22* No. 1 * January, 2008 5

ORIGINAL ARTICLEgroup of 18 to 73 years. 58 patients were maleand 23 female.Empyema thoracis was confirmed in all thepatients by (1) pleural fluid culture or Gram'sstain showing organisms, or (2) documentationof grossly purulent fluid at thoracentasis orthoracostomy. Empyema thoracis resultingfrom oesophageal operation or perforationwere excluded.Multiloculated empyema thoracis was definedby the presence of two or more collections ofpleural fluid observed on chest X-ray,ultrasonography and/or CT scan. Successfulprocedures were defined by empyemaresolution with complete re-expansion oftrapped lung and no further surgicalintervention was required.Treatment included multiple therapeuticthoracocentasis, closed tube drainage ordecortication. Selection of appropriatetreatment was dependent on the duration andextent of disease, age and fitness of the patient.Closed tube thoracostomy was carried out witha chest tube connected to underwater sealdrainage bag. Suction was not applied. Chesttube was removed when the daily chest drainoutput was below 50 ml and improvement inthe chest radiograph was noted. Decorticationwas performed in the organization phase ofthe empyema thoracis, post-traumaticempyema thoracis, multiloculated or failure toresolve after tube thoracostomy. This operationwas carried out through a standardposterolateral thoracotomy with or without ribresection.ResultsEighty one patients were included in thispresent study comprising 58 males and 23females within the age group of 18 to 73 years.Most of the patients had symptoms attributableto their empyema, with dyspnoea on exertionbeing the most common symptoms (95.1%),followed by fever (84.0%). Presentingsymptoms of the patients is shown in Fig.1.The aetio-pathogenesis of the patients in thepresent study is shown in table 1. Sixty nine6patients (85.2%) had broncho-pulmonaryinfection, of which 53 patients had been treatedFig 1. Presenting symptoms of the patients.Table 1. Aetiology of empyema thoracis.Aetiology No. of patients (%)Inflammatory 69(85.2)(a) Non tubercular 16(b) Tubercular 53Post traumatic 11(13.6)Post-pneumonectomy 1(1.2)for pulmonary tuberculosis. The antituberculartherapy was started by primary physicianbefore being referred to us. 9 patients hadhistory of firearm injury in the chest and 2patients had history of stab injury in the chest.One patient who had undergonepneumonectomy in a centre outside the statepresented to us with post-pneumonectomyempyema thoracis.Therapeutic thoracentasis was performed insix patients, of which 4 patients had to undergotube thoracostomy because of inadequatedrainage. Altogether 76 patients underwenttube thoracostomy as primary procedure in 72cases, and as secondary procedure in 4patients who was not benifitted bythoracentasis. Of these 76 patients (93.8%),52 had to undergo decortication. However, 3other patients who presented with calcifiedloculated empyema on chest X-ray haddecortication as initial mode of treatment. Theprocedure employed and their success rate aregiven in table 2.JMS * Vol 22 * No. 1 * January, 2008

ORIGINAL ARTICLEstaging of empyema thoracis. Intrapleuraldrainage remains to be the initial treatmentmodality in acute stage of the disease.Organized pleural callus requires formaldecortication. Decision-making involves a triadconsisting of the aetiology of empyema,general condition of the patient and stage ofdisease, while considering the triphasic natureof development of thoracic empyema.References1. Adams F. The genuine works of Hippocrates. 1st ed,Baltimore: William and Wilkins Company;1939.p.51-52.2. VanSonnenberg F, Nakamoto SK, Mueller PR, et al.CT and ultrasound-guided catheter drainage ofempyemas after chest tube failure. Radiology 1984;151:349-53.3. Lee KS, Im JG, Kim YH, Hwang SH, Bae WK, LeeBH. Treatment of thoracic multiloculated empyemaswith intracavitary urokinase: a prospective study.Radiology. 1991;179:771-5.4. Strange C, Sahn SA. The clinician's perspective onparapneumonic effusions and empyema. Chest1993; 103:259-61.5. Lukanich JM, Sugarbaker DJ. Chest wall and Pleura.In: Townsend CM, Beauchamp RD, Evers BM, MattoxKL, editors. Sabiston textbook of Surgery, 17th ed,Philadelphia: Saunders; 2004.p.1711-1733.6. LeMense GP, Strange C, Sahn SA. Empyemathoracis - therapeutic management and outcome.Chest 1995;107:1532-7.7. Bilgin M, Akcali Y, Oguzkaya F. Benefits of earlyaggressive management of empyema thoracis. ANZJ Surg 2006;76(3):120-2.8. Molnar TF. Current surgical treatment of thoracicempyema in adults. Eur J Cardiothorac Surg 2007;32(3):422-30.8JMS * Vol 22 * No. 1 * January, 2008

ORIGINAL ARTICLEBeetle dermatitis in Manipur1Th. Nandakishore, 2 Roslin L, 3 Romita B, 2 Kalkambe KAAbstractObjective: To study the various clinicomorphologicalpattern of beetle dermatitis inManipur and to identify the causative beetlein this region. Methods: 362 cases ofsuspected beetle dermatitis attending the SkinOPD, Regional Institute of Medical SciencesHospital, Imphal between the period March2001 and April 2003 were taken up for thedescriptive study. Results: There were 204males (56.35%) and 158(43.65%) females.Maximum number of patients were in the agegroup 21-30 years (n= 124; 34.25%). Twohundred twentynine (63.25%) and133(36.74%) patients belonged to urban andrural areas respectively. The exposed areasnamely the neck (n=140; 38.67%), face(n=135; 37.29%) and arms (n= 50; 13.8%)were commonly affected. In15 patients(4.14%) there were generalized lesions.Morphology of the lesions varied from theclassical linear lesions with necrotic centre andpustules in the periphery to ovoid and irregularpatches. Small non- descript lesions were alsoseen in some cases. Main presentingsymptoms included burning sensation, pain,tightness and limitation of movement at theaffected site. Constitutional features were alsonoted in those cases with very necrotic and1. Assistant Professor; 2. Registrar ; 3. Junior Resident,Department of Dermatology, Regional Institute ofMedical Sciences (RIMS), Imphal.Corresponding author:Dr. Th.Nandakishore, Department of Dermatology, RIMS,Imphal, ManipurE-mail: nandathokchom@yahoo.comextensive lesions. Maximum cases (56.35%,n=203) presented on the 2 nd or 3 rd day. Thecaptured beetle belonged to Coleoptera class,Staphylinid family, Paederus genus andsemipurpureous species. Conclusion: Blisterdermatitis is a common easily treatableseasonal dermatitis with little symptoms andcomplications. However a proper diagnosis isessential to allay anxiety among the victimsand proper recognition of such commondisorders is also necessary for medicalpersonnel to avoid inappropriate treatment.Key words: Beetle, paederus, dermatitis.IntroductionBeetle dermatoses have been recognized asa common seasonally occurring dermatitis.Although there are more than 2, 80,000species, common beetles which aredermatologically relevant belong to two familiesnamely Meloidae (Blister beetle) andStaphylinidae (Rove beetles). They causeeither a vesicant ( irritant ) reaction frompowerful irritants contained in their body fluidsor allergic contact dermatitis the former beingmore commoner. 1Blister beetles are found in Europe, Unitedstates and Africa whereas rove beetles has aworldwide distribution and has been foundfrequently in tropical areas of the Orient, Africa,South America and Australia. 2 Blister beetlescause acute dermatitis which are not properlyrecognized or misunderstood though thisdermatitis is quite common and known to occurseasonally affecting all populations alike.JMS * Vol 22* No. 1 * January, 2008 9

ORIGINAL ARTICLEThough there are many reports of suchdermatitis both in India 3-8 and abroad 9-11 no suchstudies has been undertaken in North-EastIndia including Manipur. This study wasconducted to investigate the incidence, extentand clinical patterns of beetle dermatitis andto identify the causative beetle in this region.Material and methodsThe study was carried out on 362 patients withsuspected beetle dermatitis attending the SkinOPD, Regional Institute of Medical Sciences,Imphal during the period of March 2001-April2003. A medical history was recorded andclinical examination was performed. Skinbiopsies were taken in a few cases. Suspectedbeetles were caught and species identified inconsultation with the Department of LifeSciences, Manipur University.ResultsOut of the 362 cases included in the study, therewere 204 males (56.35%) and 158(43.65%)females. The youngest patient was 1-1/2 yrand the oldest 68 yr. Most of the cases belongedto the age group of 21-30 years comprising ofTable 1. Age by sex distribution of affectedcasesAge group Male Female Total(%)(years)0-10 18 19 37(10%)11-20 64 52 116(32%)21-30 71 53 124(34%)31-40 37 16 53(15%)>40 14 18 32(9%)Total 204 158 362(100%)124 (34.25%) patients (Table1). Children wereleast affected. Two hundred twentynine(63.25%) and 133(36.74%) patients belongedto urban and rural areas respectively. Most ofthe patients gave history of sleeping in the nightwith lights on. Two hundred thirtyfive (64.4%)patients noticed the lesions in the morning afterwaking up while washing the face. However,many of them were unaware of any directTable 2. Distribution of skin lesions inpatients with Paederus DermatisSites Number* PercentageNeck 140 38.67Face 135 37.29Arms 50 13.8Chest 10 2.7Shoulder 15 4.14Axilla 8 2.2Scalp 6 1.65Generalised 15 4.14*The number of lesion sites affected is more thanthe actual number of patients (n=362) as in manypatients more than one site was involved.contact with any insects. Table 2 shows the siteof lesions affected in patients with Paederusdermatitis. The exposed areas of face, neck andarms were commonly affected. The mostcommon site was the neck seen in 140 (38.67%)patients and 135 (37.29%) patients had lesionson the face. Involvement of the scalp was rare,seen in only 6 patients (1.65%). Fifteen (4.14%)patients had generalized lesions involving morethan 3 sites (face, trunk, and upper thighs).Involvement of the flexural areas like cubital andpopliteal fossa showing kissing lesions was alsocommon. Morphology of the lesions varied fromthe classical linear lesions with necrotic centreand pustules in theperiphery (Fig 1)to ovoid andirregular patches.Small nondescriptlesionswere also seen inFig 1. Classical Paederusdermatitis lesions on the neck.some cases.Lympha-denitiswas not seen inour cases.Main presenting symptoms included burningsensation, pain, tightness and limitation ofmovement at the affected site. Itching wasminimal to absent. Constitutional features likefever were also noted in a few cases when thelesions were very necrotic and extensive.Maximum number of patients 203(56.35%)presented on the 2 nd or 3 rd day. Only 31 (8.5%)10JMS * Vol 22 * No. 1 * January, 2008

ORIGINAL ARTICLEBiopsy of the lesions showed mostly necrosisof the epidermis with inflammatory cellinfiltration in the early phase(day 2/3) whereassubcorneal pustules with heavypolymorphonuclear cell infiltration in thosepresenting late (day 4/5) (Fig 2).Incidence of the disease was very high duringhot and wet weather. In the year 2001, therewere double peaks in the incidence of thedermatitis during the months of May andSeptember coinciding with heavy rainsincluding flood during these months (Fig 3). Inthe year 2003 maximum cases occurred duringthe month of April.geographical areas may report the incidence atdifferent times of the year. In Manipur rainyseason generally occurs during May toSeptember but pre monsoon showers alsooccurs quite frequently during February to April.Though most Indian studies have recordedbeetle dermatitis in the post monsoon periodparticularly, during April-September, our findingsalso support the eastern Indian report that in thesub-Himalayan region, incidence of beetledermatitis occurs perennially as rains occur inprotracted period during the year. Humidenvironment seems to be fertile for thepropagation of the beetle as even during rainyseason no dermatitis is reported if droughtoccurs as seen in June –July 2001. Clusteringof cases which were noticed at the time of heavyrain and flood seen in May and Sept 2001 andlow incidence in cooler months November toFebruary in our study corroborated findings ofother studies. 11Fig 2. Photomicroph showingsubcorneal pustules, acantholyticcells and mixedinflammatory infiltrate in thedermis (HE Stain, x 100).Fig 4. Paederus semipurpureusThe captured beetle measured about 3-8mmin length with red thorax, greenish black body,dark brown antenna and was identified asbelonging to Coleoptera class, Staphylinidfamily, Paederus genus and semipurpureousspecies (Fig 4).DiscussionDa Silva from Brazil first described Paederus asa cause of dermatitis in 1912 12 , and Lehman etal 13 in 1955 described blister beetle dermatitis.Subsequently many reports came from SriLanka 9 , Australia 10 and America 11 and in Indiareports have come from Punjab 3,4 , Rajasthan 5 ,South India 6,7 and Eastern India. 8 DifferentFig 3. Seasonal distribution of Paederus dermatitis from March 2001 to April 2003There was no predilection of age, sex, rural orurban in the occurrence of the disease as thedermatitis depended on the patient’s activitiesand insect habitat.In our series 235 patients (64.5%) noticed thelesions in the morning further corroboratingthe nocturnal habit of the insects 3 . As reportedin other studies 6 where exposed partsparticularly face and neck of the bodycontributed for most number of lesions whenthe insects easily come into contact with.However covered parts can also be involved.Other than producing local irritant dermatitislikepicture as reported by other workers 3, 6 ,our study also revealed that the dermatitis canbecome generalized involving face, trunk,covered parts even masquerading aseczema-tous dermatitis. Complica-tions included post inflam-matoryhyperpigmentation inmost of the cases.Biopsy of the lesionsrevealed initial toxic effectcharacterized bynecrosis, inflammatorycell infiltration andpolymorphonuclear cellinfiltration as the lesionprogressed.JMS * Vol 22* No. 1 * January, 2008 11

ORIGINAL ARTICLEpresented beyond 5 th day.Paederus beetles are nocturnal and areattracted by incandescent and fluorescentlights and as a result inadvertently come intocontact with humans. However, daytimecontact may also occur as revealed bysignificant number of patients affected inoutdoor also. Hemolymph of the beetlecontains paederine which is released oncrushing of the insect onto the skin due to reflexof brushing away the insect. Paederin, analkaloid is largely produced by adult femalebeetles. Blisters are the result of activation orrelease of neutral serine proteases which acton the desmosomal region resulting inintraepidermal separation with little scarring butsignificant post inflammatory pigmentation.There are more than 30 species of Paederuswhich can cause dermatitis. Indian reports havementioned Paederus melampus as thecommonest 14 , P.fuscipes, P.irritants,P.sabaeus, P.himalayicus being other speciesidentified 1 . Paederus semipurpureus is thespecies identified in our region. Clinically,paederus dermatitis should be differentiatedfrom herpes simplex, herpes zoster, liquidburns, and acute allergic or irritant contactdermatitis from other causes. Linearappearance of the lesions, their predilectionfor exposed areas, and the presence of kissinglesions are very characteristic. Histopathologicaland epidemiological features also helpin making definite diagnosis. 14ConclusionBlister dermatitis is not an uncommon seasonaldermatitis with little symptoms but can be asource of apprehension for the patient for moreserious conditions which look morphologicallysimilar and is noteworthy for cosmeticconsideration. A proper diagnosis andtreatment is therefore essential to allay anxietyamong the victims which requires awarenessof such common disorders amongst the medicalpersonnel.AcknowledgementThe authors wish to express their gratitude to Prof.T. Kameshwar Singh, Dept of Life Sciences,Manipur University for his valuable expertise in theidentification of the beetle involved in the presentstudy.References1. Nair BKH, Nair TVG .Diseases caused byarthropods. In: Valia R.G., Valia A.R. editors.IADVL Textbook and Atlas of Dermatology.2 ndedition. Mumbai, India: Bhalani publishinghouse ; 2001. p . 340-41.2. Shatin H. Dermatoses caused by Arthropods.In: Canizares O. ed. Clinical TropicalDermatology. Oxford : Blackwell ScientificPublications ; 1975. p. 252-253.3. Handa F, Pradeep S, Sudarshan G. Beetledermatitis in Punjab. Indian J DermatolVenereol Leprol 1985; 51:208-12.4. Kalla G, Ashish B. Blister beetle dermatitis.Indian J Dermatol Venereol Leprol. 1997;62:267-8.5. Bhargava RK, Gupta B. Seasonal blisteringdermatitis. JIMA 1982; 99: 98-9.6. Ravi Vadrevu. Book of abstracts, IADVL,Dermavision ; 2000 . p .141.7. Apratim Goel, Shenoi SD. Book of Abstracts,12IADVL, Dermatech ; 2001 . p . 156.8. Sujit SR, Kaushik L. Blister beetle dermatitisin West Bengal. Indian J Dermatol VenereolLeprol. 1997 ; 63 : 69-70.9. Kamaladasa SD, Perera WD, Weeratunge L.An outbreak of Paederus dermatitis in asuburban hospital in Sri Lanka. Int J Dermatol.1997 ; 36 (1):34-6.10. Banny LA, Wood DJ, Francis GD. Whiplashrove beetle dermatitis in central Queensland.Aust J Dermatol. 2000 ; 41 : 162- 7.11. Claborn DM, Pola JM, Olsa PE, Earhart KC,Sherman SS. Staphylinid (rove) beetledermatitis outbreak in the American Southwest?Mil Med. 1999 ; 164 : 209-13.12. Skin eruptions caused by Beetles(Coleoptera). In: John O’Donel Alexander.Arthropods and Human Skin. 1st ed. Berlin/New York : Springer–Verlag ; 1984.p.75-85.13. Lehmann CF, Pipkin JL, Ressman AC. Blisterbeetle dermatosis. Arch Dermatol. 1955 ; 71 :36-8.14. Singh G, Yousuf Ali S. Paederus dermatitis.Indian J Dermatol Venereol Leprol. 2007 ; 73:13-15. JMS * Vol 22 * No. 1 * January, 2008

ORIGINAL ARTICLEEffect of Azadirachta indica Linn. aqueous leaf extract on blood glucose inadrenaline induced hyperglycemia in albino rats.1Lakshman Das, 2 Ng. Gunindro, 3 S. Rita, 4 R.K. BharatiAbstractObjective: To evaluate the effect ofAzadirachta indica aqueous leaf extract (ALE)on blood glucose in normal as well asadrenaline induced hyperglycemic albino rats.Methods: Effects of ALE (500 and 1000 mg/kg p.o.) on blood glucose levels wereevaluated in normal and adrenaline (0.5 mg/kg i.p.) induced hyperglycemic albino rats.Blood glucose levels were measured just priorto and after 30, 60 and 120 min of ALEadministration. The control and standard drugsused were 5% gum acacia suspension (5ml/kg p.o.) and glibenclamide (0.5 mg/kg p.o.) in5% gum acacia suspension respectively.Results: Blood glucose levels of normal rats,treated with ALE (500 and 1000 mg/kg p.o.)showed significant reduction (p

ORIGINAL ARTICLElaboratory diet with water ad libitum. 12 hourslight and dark cycle was maintained.Laboratory practice:The Institutional Ethics Committee of RIMS,Imphal approved the protocol of the study.Preparation of the extract:Fresh leaves of Azadirachta indica (family -Meliaceae), a tree known as Neem werecollected during the month of June and July,and authenticated. The aqueous extract of theleaves was obtained by the procedure asdescribed by Khosla et al. 5 One kg of freshlycollected, shade dried, powdered leaves of A.indica were ground and soaked in 4 litres ofdistilled water overnight. The suspension wascentrifuged at 5000 rpm for 20 min and filteredthrough Whatman No.1 filter paper. Thesupernatant fluid was allowed to evaporate insterile petridishes. After drying, the extract wascollected by scrapping and stored. The yieldwas 12.5%. The extract was found to be safeup to 2g/kg p.o. in albino mice.The effect of A.indica aqueous leaf extract wasstudied both in normal and adrenaline inducedhyperglycemic rats.1. Effect of A. indica aqueous leaf extract (ALE)on blood glucose in normal albino rats.24 albino rats weighing 150 -200 g were usedfor the experiment. They were divided into 4groups of 6 animals in each group and keptfast for 18 h with free access to water. Carewas taken to prevent corpophagy. Bloodsamples were collected from orbital sinus forglucose estimation. Then the animals weretreated as follows:Group - I (control)Aqueous 5% gum acacia(5 ml/kg, p.o.).Group - II (test -1)ALE (500 mg/kg p.o.)Group - III (test - 2) ALE (1000 mg/kg p.o.)Group - IV (standard) Glibenclamide (0.5 mg/kgp.o.)Test and standard drugs were given using 5%aqueous gum acacia suspension as vehicle.Blood samples were collected from orbitalsinus at 30, 60, and 120 min after drugadministration. Blood glucose was estimatedby glucose oxidase method. 6 Results were14analysed by One-way ANOVA followed byDunnett's't' test. P

compared to control group (Table 1).2. Effect of A. indica aqueous leaf extract (ALE)on blood glucose in adrenaline inducedhyperglycemia.The hyperglycemic response after adrenaline(0.5 mg/kg i.p.) was seen maximum at 60 min.ALE at the doses of 500 and 1000 mg/kg p.o.failed to reduce adrenaline inducedhyperglycemia, but there was significantincrease (p

ORIGINAL ARTICLEblood glucose level in normal rats. It does notreduce elevated blood glucose level afteradrenaline administration. The failure to reduceadrenaline induced hyperglycemia signifies thatthe extract does not have inhibitory effect onglycogenolysis.References1. Rameshkumar K, Shah SN, Goswami BD, Mohan V,Bodhankar SL. Efficacy and Toxicity of Vanadiumnicotinate in diabetic rats. Toxicol Int. 2004; 11: 75 - 80.2. Rao KB, Kesavulu MM, Giri R, Apparao CH. HerbalMedicines. Manphar Vaidya Patrika 1997; 1: 33 - 35.3. Bailey CJ, Dav C. Traditional plant medicines astreatment of diabetes. Diabetic care 1989; 12: 553 - 564.4. Chopra RN, Nayer SL, Chopra IC. Azadirachtaindica, Glossary of Indian medicinal plants. 1st Edn.Council of Scientific and Industrial Research, NewDelhi 1956; 31.5. Khosla P, Bhanwara S, Singh J, Seth S, SrivastvaRK. A study of hypoglycemic effect of Azadirachtaindica (Neem) in normal and diabetic rabbits. IndianJ Physiol Pharmacol 2000; 44(1): 69 - 74.6. Barham D, Trinder P. An improved colour reagentfor determination of blood glucose by oxidasesystem. Analyst 1972; 97: 142 - 145.7. Gupta SS, Verma SCL, Garg VP, Rai M. Antidiabeticeffects of Tinospora cardifolia (part-I): effect onfasting blood sugar level, glucose tolerance andadrenaline induced hyperglycemia. Indian J Med Res1976; 55: 733 - 745.8. Anturlikar SD, Gopumadhavan S, Chauhan BL, MitraSK. Effect of D - 400, a herbal formulation, on bloodsugar of normal and alloxan induced diabetic rats.Indian J Physiol pharmacol 1995; 39(2): 95 - 100.9. Murty KS, Rao DN, Rao DK, Murty LBG. Apreliminary study on hypoglycemic andantihyglycemic effects of Azadirachta indica. IndianJ Pharmacol 1978; 10(3): 247 - 250.10. Lee TJ, Stitzel RE. Adrenomimetic drugs. In: Craig CR,Stitzel RE, editors. Modern Pharmacology. 2nd ed. NewYork: Little brown Company; 1994. p. 115-128.16JMS * Vol 22 * No. 1 * January, 2008

ORIGINAL ARTICLEBone marrow metastasis of solid tumours1Laishram Rajesh Singh, 1 Sushma Khuraijam, 2 R.K.Tamphasana Devi, 3 A. Meina Singh, 3 D.C Sharma,3Y. Mohen Singh.AbstractObjective: To study the spectrum of bonemarrow metastasis of solid tumours in RegionalInstitute of Medical Sciences (RIMS) Hospital,Imphal. Methods: Retrospective analyses of905 bone marrow aspirates conducted duringthe period from June 2000 to May 2005 in thedepartment of Pathology, RIMS, Imphal,Manipur, was done. Detailed clinical data,investigation results including completehaemogram were collected from the medicalrecord section. Bone marrow smears were reexaminedindependently by twohaematopathologist. Results: Out of the 905cases analyzed, metastatic infiltration in bonemarrow was encountered in 22 cases (2.43%).In 8 cases (36.36%), the primary sites couldnot be ascertained because of theundifferentiated morphology. Among children,all the 4 cases (18.18%) were Neuroblastoma.In adults, the primary sites were breast(13.63%) and GIT (13.63%). There were 2cases (9.09%) each from carcinoma prostateand lung. The age group ranged from 10months to 75 years with mean age of 55 years.Male to female ratio was 1.3:1. Majority of thepatients were more than 45 years.Conclusion: Bone marrow examination is an1.Demonstrator; 2.Asst. Professor; 3.Professor,Department of Pathology, Regional Institute of MedicalSciences(RIMS), Imphal-795004 Manipur, India.Corresponding author:Dr.Laishram Rajesh Singh, Department of Pathology,RIMS,Lamphelpat, Imphal-795004 India.Phone:91-0385-2427280 Fax: 91-385-2400727E-mail: rajeshlaish@rediffmail.com.effective, economical and easy procedure indetecting solid tumour metastasis. It may,therefore be considered to be included in theroutine investigation panel for cancer patients.Key words: Bone marrow, metastatictumours.IntroductionBone marrow (BM) is one of the most commonsites of tumour metastasis via blood streamand signifies poor prognosis. It is thereforeconsidered imperative to rule out BMinvolvement in malignancies likeneuroblastoma, carcinoma breast, lungs andprostate where curative treatment isenvisaged. 1 BM examination has been foundto be increasingly useful in documentingmetastatic deposits of tumours havingpredilection for haematogenous spread. 2In adults, carcinomas of breast, lung andprostate account for majority of metastasis inbone marrow specimens. 3,4 Less commonsources of malignancies are gastrointestinaltract, kidneys and skin. In childrenneuroblastoma, rhabdomyosarcoma andEwing's sarcoma constitute the majority of BMmetastasis. 5 BM evaluation is also done forstaging of lymphomas and other malignanttumours.BM infiltration is suspected on the basis of bonepains, pathological fractures, lytic or scleroticlesions on X-ray, hypercalcaemia, elevatedserum alkaline phosphatase or unexplainedhaematogical abnormalities such asJMS * Vol 22* No. 1 * January, 2008 17

ORIGINAL ARTICLEleukoerythroblastic picture etc. However,metastasis missed by bone scans andradiographic pictures, may be detected inrandom marrow aspirates. 6We reviewed BM aspirates with metastaticinvolvement during the last five years andevaluated haematological findings andassociated changes in haemopoietic andstromal elements of BM.Material and methodsThe retrospective study was carried out atRIMS Hospital, Imphal, Manipur. Detailedclinical and investigation data were collectedfrom medical record section. A total of 905 bonemarrow aspirations was performed during theperiod June 2000 to May 2005. BM smearscollected were re-examined by twohaematopathologist independently. Smearswere routinely stained by Leishman's stain.Special stains such as Periodic Acid Schiff's(PAS) stain, Myeloperoxidase and Iron stainswere also used for some selective cases.Cases subjected to BM examinations were asa part of tumour staging (13 cases) or due todevelopment of severe anaemia (4 cases) orbone pains (2 cases) or for investigatingpyrexia of unknown origin (3 cases).ResultsA diagnosis of metastatic infiltration in BM wasencountered in 22 cases (2.43%) of which 18(81.81%) were in adults and 4 (18.18%) inchildren. The age group ranged from 10months to 75 years with mean age of 55 years.(Table.1) Male to female ratio was 1.3:1. Mostof the patients were more than 45 years. In 8cases (36.36%), the findings were incidentalTable 1. Age distributionAge No. of cases.(22) %< 10 4 18.1811-20 0 021-30 1 4.5431-40 2 9.0941-50 2 9.0951-60 5 22.73Above 60 8 36.36and primary sites could not be ascertained.Among children, all the 4 cases (18.18%) weremetastatic neuroblastomas(Fig 1). In adults,the primary sites were breast (3 cases,13.63%) (all females) and GIT (3 cases,13.63%) (1 male and 2 females). There were2 cases (9.09%) each from carcinoma prostate(Fig 2) and lung (1 male and 1 female)(Table 2).Fig 1. Photomicrograph ofBM aspirates showing bloodmixed aspirates and roundcell tumour metastasis.(Leishman’s stain, X400)Fig 2. Photomicrograph ofBM aspirates showingmetastasis of adenocarcinomain a hypocellularbackground. (Leishman’sstain, X400)Table 2. Primary sites of bone marrow metastasisSl. Primary Sites No. of Cases Percen-No. (Total = 22) tage (%)1. Neuroblastoma 4 18.182. Breast 3 13.633. GIT 3 13.634. Lungs 2 9.095. Prostate 2 9.096. Others (undifferentiated) 8 36.36From the records of peripheral bloodexamination, all the patients were found to beanaemic with hemoglobin ranging from 5.6 to9.0 g %. Thrombocytopenia was recorded in11 (50%) cases while leucopenia was presentin 2 (9.09%) cases. Leucoerythroblastic picturewas documented in 9 (40.9%) cases.BM smears in 18 cases (81.81%) werehypocellular, 3 cases (13.64%) normocellularand one case (4.55%) was hypercellular. In 4cases of neuroblastomas, BM aspirations weredone as a part of staging. Diagnosis of adenocarcinomaswas made in 8 cases on the basis ofglandular pattern, presence of signet ring cell andmucin detected by PAS. In the remaining cases,the cell clusters were undifferentiated malignantcells and it was not possible to identify theirtissue of origin from marrow aspirate.18JMS * Vol 22 * No. 1 * January, 2008

ORIGINAL ARTICLEFNAC slides from primary sites were availablein 14 cases. In 8 cases primary could not beascertained as either results of roentgenographicstudies were negative or patientswere lost to follow-up.DiscussionBM aspirations are now employed in theinvestigation of many disorders in haematology,oncology and internal medicine. 7 Detection ofmetastatic tumours in BM is of great importancefor the clinical staging of tumour spread becauseit influences the response to treatment and theoverall survival. 1 Patients with metastatic tumourcells in BM usually have a normochromic,normocytic anaemia and less commonly,thrombocytopenia or neutropenia. In less thanhalf the patients with bone marrow metastasis,the blood films contain some erythroblast andneutrophil precursors (leukoerythroblasticanaemia). 8 In our study, leucoerythroblasticpicture was seen in 40.9% cases similar to thestudy conducted by Sharma S et al 1 where theleucoerythroblastic picture was seen in 50%cases. In adults, the tumors that most commonlymetastasize to marrow are carcinomas ofprostate, breast, lung, thyroid and kidney. Inchildren they are neuroblastoma,rhabdomyosarcoma, Ewing's sarcoma andretinoblastoma.In a study conducted by Sharma S et al 1 ,neuroblastoma (12%) and breast tumors (12%)predominated. These results are comparableto our study where neuroblastoma (18.18%)predominated among all the metastatic solidtumours in BM, followed by breast andgastrointestinal tract tumours (13.63%) each.Mohanty SK et al 2 in their study of 73 casesreported neuroblastoma in 27 (36.98%) casesfollowed by 22 (30.13%) cases of cacinomaprostate and 13 (17.81%) cases of breastcancer. In our study, carcinoma prostate wasfound in 2 cases (9.09%).Often, it is not possible to identify the primarytumour on the basis of the morphologic featuresof metastatic cells in marrow smears.Information on the nature of malignant cellsmay be obtained by immunocytochemistry andimmunohistochemistry which are available inselected centres only.ConclusionBM aspiration is an important part of routineinvestigation of cancer patients. It may identifymetastasis where radiography and bone scanshave failed. It is effective, practical andeconomical in detecting solid tumoursmetastasis to BM in selected group of patientsand rightly considered mandatory for stagingof solid malignant tumours.References1. Sharma S, Murari M. Bone marrow involvement bymetastatic Solid tumours. Indian J Pathol Microbiol.Jul 2003; 46 (3):382-84.2. Mohanty SK, Dash S. Bone marrow metastasis inSolid tumours. Indian J Pathol Microbiol. Oct 2003;46 (4):613-16.3. Anner RM, Drewinko B. Frequency and Significanceof Bone marrow involvement by Solid metastatictumours. Cancer 1977; 39:1337-44.4. Singh G, Krause JR, Breitfeld V. Bone marrowexamination for metastatic tumour. Cancer 1977;40:2317-32.5. Finkelstein JZ, Ekert H, Isaacs H, Higgins G. Bonemarrow metastasis in Children with Solid tumours.Am J Dis Child. 1970; 119:49-52.6. Hansen HH, Muggia FH, Selawry OS. Bone marrowexamination in 100 consecutive patients withbronchogenic carcinoma. Lancet 1971; 2:443-45.7. Sar R, Aydogdu I, Ozen S, Sevinc A, BuyukberberS. Metastatic bone marrow tumour: a report of sixcases and review of literature. Haematologica(Budap). 2001; 31(3):215-23.8. Smitha NW, Jeffrey MC. Blood and Bone marrowpathology. In: S.N.W and BJ Bain, editors. Pathologyof marrow: general considerations.1st ed.Philadelphia: Churchill Livingston; 2003.p.112.JMS * Vol 22* No. 1 * January, 2008 19

CMEAnaesthesia in laparoscopic surgery1L. Deban Singh, 2 GS MoirangthemLaparoscopy is a surgical technique wherebyorgans, vessels and other structures of theabdomen and pelvis are visualized anddissected by developing a small video cameraand surgical instruments through trocarsinserted through small skin incisions in theabdominal wall.Gynecologists pioneered its widespread usefor surgery of pelvic organs in the 1970s. Mostrecently, general surgeons have takenlaparoscopy for many surgeries (about 11% ofall operations). The first laparoscopiccholecystectomy (LC) was performed byPhillipe Mauret in France in 1987.Anaesthesiologists caring for patientsundergoing laparoscopic surgeries should beknowledgeable of the specific benifit oflaparoscopy, recognized the unique physiologicchanges caused by insufflation and anticipatethe special hazards (e.g. visceral injuries, bloodloss, capnothorax) associated with this surgicaltechnique.Physiologic changes : The importantphysiological changes in several organsystems during laparoscopic surgery arebrought about by patient position, insufflatinggas and body's response to increased intraabdominalpressure (IAP) following1. Associate Professor of Anaesthesiology, 2. Professor& Head of Surgical Gastroentrology and Minimal AccessSurgery Unit, Department of Surgery, Regional Instituteof Medical Sciences(RIMS), Imphal.Corresponding author :Dr. L. Deban Singh, Dept. of Anaesthesiology, RIMS,Imphal-795004. e-mail : debanrims@yahoo.co.inpneumoperitoneum for successful performanceof the surgery.Patient positionThe changes associated with positioning maybe influenced by the extent of the tilt, patient'sage, intravascular volume status, associateddisease, anesthetic drugs administered andventilation techniques. Patients are usuallypositioned in head down or head up positions.a) Head down position (Trendelenburg,100- 200)This position is commonly requested duringinsertion of Verees needle and trocar insertionand in lower abdominal surgery e.g. gynecologicand GIT surgery like abdominal hysterectomy,appendicectomy and herniorhaphy.i) Haemodynamic changes : There is anincrease in venous return (VR), right atrialpressure (RAP), central blood volume andcardiac output (CO). In contrast, other reportsindicate that MAP and CO usually remainsunchanged or decrease, although theTrendelenburg position increases preload.These seemingly paradoxical responses maybe explained by carotid and aorticbaroreceptor-mediated reflexes. CVPincreases by an average 8 mmHg at IAP of 15mmHg in the supine position. It increases byan additional 6mmHg at similar IAP in theTrendelenburg position.ii) Respiratory changes: Head down tilt causesa cephalad shift in abdominal viscera anddiaphragm. Functional residual capacity (FRC),20JMS * Vol 22 * No. 1 * January, 2008

total lung volume(TLV), pulmonary compliance,VC and diaphragmatic excursion are decreasedthus predisposing to atelectasis. There is anincrease in the likehood of hypoxaemia inpatients with obese and pre-existing lungdisease.Right mainstem bronchus intubation withinadvertent single-lung ventilation and itsassociated complications like hypercarbia,hypoxemia and bronchial contriction arepossible. 1 There is a tendency for the tracheato shift upward so that a tracheal tube anchoredat the mouth may migrate into the rightmainstem bronchus and hypoxemia due tocephalad displacement of the diaphragm andcarina during insufflation of the abdomen.iii) Other changes: Nerve compression, brachialplexus injury and elevation of ICP and IOP havebeen reported.b) Head up tilt (Reversed Trendelenburg,rT,20 0 -30 0 )For upper abdominal surgeries, afterinsufflation the patient's position is usuallychanged to a steep head up position to allowthe viscera to settle down by gravity away fromthe operative site and facilitate surgicaldissection.i) Haemodynamic changes : The prolongedhead up position in upper abdominal surgeriesresults in decrease in venous return(VR) dueto pooling of blood in lower extremities resultingin reduction in RAP,PCWP, and fall in MAP andCO, and preload, exaggerated by compressionof IVC during pneumoperitoneum. Thesechanges may be deleterious effects in patientswith coronary artery insufficiency.A steep head up causes venous stasis in thelegs predisposing to deep venousthrombosis and pulmonary thromboembolicmanifestation postoperatively.ii) Respiratory changes: The changes are theopposite of head down position. FRCincreases and the work of breathingdecreases.Insufflating gasThe ideal gas for abdominal insufflation wouldCMEbe physiologically inert, nonflammable,inexpensive, easily acquired, relativelyabsorbable by abdominal tissue and solublein blood so that it allows pulmonary excretionand thereby minimizes potentially lifethreateningeffects if embolized into the venousvasculature. 2 At the initial stages laparoscopistsused only air and met with complications likeair embolism, physiological trespasses likepneumothorax, pneumomediastinum, surgicalemphysema. Various gases like nitrogen(air),O 2, N 2O, CO 2, helium, argon, etc have beentried. Still the ideal agent is yet to bediscovered.Zollikofer from Switzerland first used CO 2insufflation in 1924. CO 2is the insufflating gasof choice because of its high solubility in bloodwith low risk of venous embolism, noninflammability(safety during electrocautery andlaser surgery), its capability of pulmonaryexcretion, low cost, relatively inert, rapidlybuffered by HCO 3in blood and readilyavailability despite having the risk of producinghypercarbia due to its rapid absorption byabdominal viscera and tissue.Body's response to increased intraabdominal pressure (IAP) followingpneumoperitoneumPneumoperitoneum is created and maintainedby insufflating gas(Initial flow, 1-1.5L/min, thenhigher flow rate, 2 - 3L/min) through Veressneedle into the peritoneal cavity. A "Hasson"minilaparotomy technique has also beenadvocated for pneumoperitoneum creation toavoid injuries associated with blind Veressneedle and trocar insertion. Once thepneumoperitoneum is established, the gas flowrate is reduced to maintain IAP usually at 10-15mmHg (range 5-20mmHg). About 4L of thetotal gas volume (range 3-5L) is required toachieve IAP of 8-12mmHg. This is necessaryto create the space to visualize the surgicalarea through the laparoscope. The overallpressure on the diaphragm amounts to a forceof approximately 50 kg in the trendelenbergposition. When gas is insufflated into theperitoneal cavity, there are two immediateeffects: IAP is raised to a level depending onthe gas volume and cavity compliance andsecondly gaseous interchange occurs acrossthe peritoneum. Pneumoperitoneum may beJMS * Vol 22* No. 1 * January, 2008 21

avoided by using special surgical retracters orsubcutenous wiring to lift the abdominal wallalthough exposure is inferior to that achievedwith pneumoperitoneum. Cardiovascular, respiratoryand renal changes are common and varyin degree of severity based on the length andcomplexity of surgery, patient's age and his orher cardiopulmonary status.1. CVS changesThe mechanism by which laparoscopy causescardiovascular effects is not clearly delineatedbut may depend partly from two main factors:neurohumoral response following increasedIAP, and hypercarbia and the subsequentacidosis.Neurohumoral response : Neurohumoralresponse increases vasopressin partly from1.5 ± 0.5 to 12.3 ± 47 pmol/L 3 and latercatecholamines following increased IAP.Vasopressin (Anti-diurectic hormone, ADH)causes the mascular layer of arterioles (i.e.Tunica media vasorum) to contract. The risein vasopressin tended to parallel temporallyincreases in systemic vascular resistance(SVR) and blood pressure whereas elevatedconcentrations of catecholamines occourredlater in the surgery. IV clonidine given beforeinsufflation significantly attenuate some ofthese hemodynamic changes. However, reninangiotensin-aldosteronesystem is alsoinvolved. The most important mechanism ofthe neurohumoral response of the vasopressinand rennin-angiotensin-aldosterone system isthe sympathetic stress response 4 includingvagal reflexes. The increased IAP also leadsto a mechanical impairment of the VR leadingto an increase in venous pressure of the lowerextremity while decreasing the cardiac preload.Depending on the extent of above mentionedmechanisms there will be an increase in SVRand pulmonary vascular resistance resultingin an increased afterload. The development ofhemodynamic changes depends on thefunctional reserve of the heart. There may bea decrease in cardiac output and hypotensionwithout an increase in the heart rate.Other factors includes the positioning of thepatient, preoperative cardiorespiratory status,intravascular volume and anesthetic agentsemployed.CMEReflex increase in vagal tone due tooverstretching of the peritoneum may producebradycardia and even asystole and death,aggravated by lighter plane of anesthesia,patient on ß-blocker, stimulation of trachealtube during biplolar electro-cauterization andCO2 embolization. In 0.5% of healthy patients,however, bradycardia and asystole can occurduring CO2 insufflation and pneumoperitoneum.Although the exact mechanism forthis response and why only certain patientsexperience bradycardia remains topics ofcontinued research, it is believed that directpressure on the vagus nerve causes astimulatory parasympathetic effect that leadsto a drop in heart rate. Hypercarbia can alsoexacerbate arrhythmias. The thresholdpressure that produces minimal effects onhaemodynamic function is 12mmHg.Hypercarbia and Acidosis : CO 2is highlysoluble and therefore is very rapidly absorbedfrom the peritoneal cavity and retroperitonealspace into circulation. Because absorbed CO 2can only be excreted through the lungs,hypercarbia can only be avoided by acompensatory hyperventilation by increasingthe tidal volume of ventilation in anesthetizedpatients. Hypercarbia can develop as a resultof a highly increased peritoneal absorption ofCO 2and an insufficiently increased exhaustionof CO 2. Absorption of CO 2is increasedparticularly during prolonged surgery usinghigh intra-abdominal pressure. Exhaustion ofCO 2is reduced in patients with compromisedcardiopulmonary function and restricted CO 2clearance. 5 Also, the compensatoryhyperventilation is impeded by theTrendelenburg position or a high intraabdominalpressure, which cause a cephaladdisplacement of the diaphragm (resulting inreduction of lung volumes) and a restriction indiaphragmatic mobility. In these conditions,severe hypercarbia can develop despiteaggressive hyperventilation. It should bestressed that intra-abdominal pressure has amajor role in the development of hypercarbiasince it both increases the absorption anddecreases the exhaustion of CO 2.Hypercarbia and acidosis can causehemodynamic changes by direct action on thecardiovascular system and by an indirect action22JMS * Vol 22 * No. 1 * January, 2008

through sympathoadrenal stimulation. 4,5 Thedirect effect of carbon dioxide and acidosis canlead to decreased cardiac contractility,sensibilization of myocardium to thearrhythmogenic effects of catecholamines andsystemic vasodilatation. The centrallymediated, autonomic effects of hypercarbialead to a widespread sympathetic stimulationresulting in tachycardia, hypertesion andvasoconstriction counteracting the directvasodilatatory effect. Attempting to compensateby increasing the TV/RR will increase themean thoracic pressure, further hindering VRand increasing mean pulmonary arterypressure. These effects can prove particularlychallenging in patients with restrictive lungdisease, impaired cardiac function orintravascular volume depletion.Clinical studies of hemodynamic changes:A biphasic change in CO is produced (COelevated initially,then decreased). Upto10mmHg of IAP, the cardiac filling pressuresare unchanged or elevated and CO improves.Most of these studies reported increased SVRand pulmonary vascular resistance andreduction of cardiac index (CI) whenlaparoscopy was performed at about 15 mmHg and head up tilt 10°. Joris et al 6 usinginvasive monitoring, observed a significantincrease in mean arterial pressure (MAP)(35%) after peritoneal insufflations, along withan increase of SVR (65%) and pulmonaryvascular resistance (90%), and a decrease inCI (20%), while the PCWP and CVP increased.The decrease in CI can be partly explained byan increase in SVR. CI can be reduced by 35-40% after induction of anesthesia and rTpositioning, and further reduced to 50% of itspreoperative value 5min after the beginning ofCO 2insufflation. The CI gradually improved10min of CO 2insufflation. This biphasic changein hemodynamic has been supported by manystudies whereas some investigatorscommented an unchanged CI during CO 2insufflation. The mechanism by which biphasicchanges in CO has been explained as a) itforces blood out of the abdominal organs(splanchnic venous bed) and IVC into thecentral venous reservoir thereby increasedcentral BV and hence CO, b) with furtherincreased in IAP, there is peripheral pooling ofblood in the lower extremities and pelvic region,thereby tends to decrease the VR and CO.However, higher insufflation pressure(>18mmHg) tends to collapse the majorabdominal vessels (particularly IVC) whichdecreases VR and leads to a drop in preloadand CO in some patients. TransesophagealEchocardiography (TEE) has shown that thereis marked decrease in left ventricular enddiastolic. These hemodynamic changes arewell tolerated by healthy individuals but mayhave deleterious consequences in patientswith cardiovascular disease. TheTrendelenburg position attenuated thisincrease while rT position aggravates it.Using lower insufflation pressures, CVSchanges were milder and transient. Threeminutes after the onset of pneumoperitoneumat the pressure of 8-12 mm Hg, Branche et al 7observed a 25.7% increase in MAP, a 49%increase in left ventricular end-systolic wallstress (a measure of left ventricular afterload)and a 17% decrease in fractional areashortening (a measure of left ventricularfunction-contractility). All measured variablesreturned to preinsufflation values after 30 minof pneumoperitoneum and thereafter were nolonger significantly affected by posturalchanges (10° head-up position) or pneumoperitoneumexsuflation.Minimal to no changes in cardiac conductionare usually caused by pneumoperitoneum ifhalothane is avoided for maintenance ofanesthesia. Halothane is associated withventricular arrhythmogenesis if administeredin the presence of hypercarbia,not aninfrequent event during CO 2insufflation.Although rare, traction on peritoneal tissue canenhance efferent vagal traffic to the sinus nodeand slow or abolish spontenous rhythm. Littledata are available regarding the effects ofpneumoperitoneum on other indices of cardiacconduction such as dromotropism andrepolarization.2. Respiratory changesCMEThe increased IAP following pneumoperitoneumleads to cephalad displacement ofthe diaphragm which results in reduced lungJMS * Vol 22* No. 1 * January, 2008 23

volumes (TV, FRC, FEV 1,VC,TLV), andthoraco-pulmonary compliance (35-40%),increased peak airway pressure and risk ofbarotraumas during IPPV, and an inadvertentright mainstem bronchial intubation particularlyin Trendelenburg position. This decreasedcompliance leads to an increased in the workof breathing. There is chances of opening ofembryonal channels between the peritonealcavity and the pleural and pericardial sacswhich may cause pneumothorax, pneumomediastiumand pneumopericardium. Thecephalic shift results in early closure of smallairways leading to intraoperative atelectasiswith a decrease in FRC. Uneven distributionof ventilation to non-dependent parts of thelungs (increases in less ventilated alveoli)produces ventilation perfusion mismatch,elevated dead space, intrapulmonary shunting,hypoxia, hypercarbia and atelectasispredispose to PO chest infections. This ismanifested by widening of the alveolar-arterialpartial pressure of O 2difference (A-aDO 2).PaCO 2/P Et CO 2increases about 15% to 25%usually reflected to capnography. Increased inminute volume (10-25%) is required to maintaina constant P Et CO 2concentration and preventoccurrence of a respiratory acidosis (pH-7.30)that would otherwise occur. Disproportionateincreased of PaCO 2/ P Et CO 2(>25%) needsfurther search for various causes likecardiorespiratory compromise, subcutaneousemphysema, endobronchial intubation,pneumothorax and pulmonary embolism.Depending upon absorption of CO 2fromperitoneal surface, retroperitoneal space,impairment of pulmonary ventilation, abdominaldistension and patient position, an IAP of 15mmHg raises the PaCO 2by 10mmHg ( P Et CO 2-10mmHg), the PACO 2by 4mmHg anddecreased lung compliance by 25%. Duringcarboperitoneum, both P Et CO 2and PaCO 2increases progressively (time dependent) toreach a plateau 15-20 min (range 10-30 min)after the insufflation (similar to the phasiccardiac response). This occurs both in headup and head down positions in patients withcontrolled ventilation, the correction of theincreased CO 2and respiratory acidosis canbe made by increasing minute ventilation (10-25%) (increasing RR and / or TV 12-15mL/kg)CMEin order to prevent progressive alveolaratelectasis and hypoxemia and to allow CO 2elimination but will inevitably lead to someincreased in airway. Both P Et CO 2andpulmonary CO 2elimination continued toincrease slowly throughout CO 2insufflation.Although ventilation with PEEP significantlyimproves pulmonary gas exchange andpreserves arterial oxygenation duringprolonged pneumoperitoneum, PEEP in thepresence of elevated IAP increases theintrathoracic pressure (ITP) and producesmarked reduction in CO. A modern ventilationtechnique is the 'alveolar recruitment strategy',consisting of manual ventilation to an airwaypressure of 40 cm H 2O for 10 breaths over 1min, followed by usual mechanical ventilationwith mild PEEP (5cm H 2O) to improves arterialoxygenation intraoperatively duringlaparoscopy, without clinical cardiovascularcompromise or respiratory complications. 8Since up to 120 liters of CO 2can be stored inthe human body during pneumoperitoneum, aprolonged mechanical ventilation is neededpostoperatively in some cases until CO 2iseliminated completely. If the ventilation is notcontrolled, these changes are primarilymitigated by a more frequent RR but P Et CO 2concentrations still rise. However, in ASA GradeIII or IV patients, PaCO 2may remain elevated(about 3-fold more than that determined in ASAI patient) despite adjusting minute ventilationto normalize P Et CO 2. Preoperative evaluationwith pulmonary function tests demonstratingFEV less than 70% of predicted values, lowVC, high risk ASA and diffusion defects lessthan 80% of predicted values can identifypatients at risk of developing hypercarbia andrespiratory acidosis following pneumoperitoneum.Significant variations of meangradients of arterial - P Et CO 2is seen in patientswith COPD, morbid obesity and congenitalcardiac disease.In patients with interstitial pulmonary diseaseor COPD, poor CO 2diffusion and eliminationmay lead to significant and catastrophicincreases of PCO 2. P Et CO 2measurements areunreliable and tend to underestimate the truePCO 2in this population because of impairedgas exchange. Periodic arterial blood gas24JMS * Vol 22 * No. 1 * January, 2008

(ABG) measurements should be obtained andin the event that CO 2can not be quicklyeliminated, pneumoperitoneum or pneumoretroperitoneumshould be relievedimmediately. Once PCO 2has fallen into theacceptable range, CO 2insufflation can beresumed and the laparoscopic procedurecontinued.3. EmbolismThe chance of thromboembolism is more inpatients undergoing long laparoscopicprocedures in the rT position. At least twofactors in Virchows triad are affected (venousstasis and hypercogulability) during increasein IAP. Doppler studies showed decrease infemoral blood flow with increase IAP and thereis no adaptation during prolonged surgery. AtIAP >14mmHg, rT position, obesity, pelvicsurgery and prolonged surgery reduce venousblood flow in the lower extremities therebyincreasing chances of thromboembolism.4. Renal and splanchnic blood flowA pneumoperitoneum induces importantchanges in the physiology of the kidneys. Themost common result is oliguria. The maincauses of oliguria during laparoscopy are :i) Direct mechanical compression of renalarteries, veins and parenchyma. 9ii) The vicious cycle of reduced renal perfusionactivation of renin-angiotensinaldosterone system renal corticalvasoconstriction 10iii) Increased ADH(Vasopressin) 10,11iv) Elevation of endothelinv) Reduced CO. 12With desufflation, these mediators return tobaseline levels, and a post-desufflation diuresisis generally noted in the following hours. Renalhomeostasis is re-established within 24 hoursafter surgery with normalization of serum andurinary creatinine and electrolytes.Renal and hepatic blood flow may beinfluenced by IAP (physical pressure ofpneumoperitoneum), humoral mediators suchas renin, hypercarbia and patient position. AnIAP of >20 mmHg reduces renal andmesenteric blood flow. There is an overallreduction of blood supply to all the organsexcept the adrenal glands. The RBF and GFRCMEdecrease because of an increase in renalvascular resistance, reduced glomerularfiltration gradient and reduced CO. The renaleffects are mild to negligible when the IAP isless than 10 mm Hg. Head-up position andIAP from 12 to 15mmHg compromised hepaticand renal blood flow in animal study. Thefunctional consequence of the diminishedblood flow(cortical renal flow decreases by28%, medullar renal flow decreases by 31%, 13GFR decreases to 18-31% of normal values 14 )to kidneys resulted in a urinary output of only0.01±0.03ml/kg/h (63% to 64%),compared with0.85±0.4ml/kg/h in patients undergoinglaparoscopic surgery using CO 2pneumoperitoneumor an abdominal wall retractor,respectively. There is also reduction ofcreatinine clearance and sodium excretion.This is a functional (prerenal) acute renalfailure, which is generally reversible after 2 hpostoperatively. 9 The greater concern is toavoid over-resuscitation, fluid overload,pulmonary edema, and exacerbation ofcongestive heart failure. Prolonged renalhypoperfusion carries the risk for acute tubularnecrosis and its consequences. One must keepin mind the possibility of renal, hepatic andintestinal failure after laparoscopic procedures.Some prophylactic actions are available andcan easily be taken before acute tubularnecrosis occurs.Methods for maintaining renal perfusion :i) Intravascular volume loading should bedone before and during pneumoperitoneum.In an effort to maintain renal perfusion andminimize possible deleterious effects on graftfunction, some investigators have suggestedthe use of isotonic and hypertonic intravascularvolume expansion for transplant cases. Analternative to volume expansion is to decreaseIAP as much as visualization will allow.ii) Low dose dopamine 2 µg/kg/min can preventrenal dysfunction usually associated with longlastinglaparoscopic procedures and higherpressures of pneumoperitoneum (~15 mmHg). 15iii) Urine output is significantly higher wheninsufflation of gas at body temperature is usedas compared with room temperature CO 2insufflation. Warm insufflation probably causesa local renal vasodilation and may be beneficialJMS * Vol 22* No. 1 * January, 2008 25

to patients with borderline renal function. 16iv) Esmolol inhibits the release of reninand blunts the pressor response to inductionand maintenance of pneumoperitoneum.Therefore, it may protect the kidneys againstrenal ischemia during laparoscopy. 17v) Non-steroidal anti-inflammatory drugs(NSAIDs), widely used for pain management,can cause renal medullary vasoconstrictionthat may induce acute tubular necrosis if addedto the previous vasoconstriction caused bypneumo-peritoneum. 18 Therefore, NSAIDs,both the 'older' ones and the new selectiveCOX-2 inhibitors (selective inhibitors of cyclooxygenase-2enzyme) should be avoidedpreoperatively in patients with impaired renalfunction or renal diseases.High risk of regurgitation and aspiration(acid)of gastric contents has been reported duringlaparoscopic procedures. Several factors thatpredispose to regurgitation are steep headdown tilt, IAP during insufflation ofintraperitoneal gas and mechnical pressureexerted on the abdomen by the surgical team.However, risk of gastric regurgitation from IAPduring insufflation is usually minimized due toincreased lower esophageal sphincter tone.Studies in rats have shown a decrease insplanchnic macro- and micro-circulationdepending on the amount of intra-abdominalpressure. 19 An increase of 5 mm Hg, from 10to 15 mm Hg of the intra-abdominal pressureresulted in a blood flow decrease to thestomach (40-54%), jejunum(32%), colon(44%),liver(39%), and peritoneum (60%). 20 The fallin blood flow to these organs may be due torelease of hormones (catecholamines,angiotensin and vasopressin), mechanicalcompression on abdominal organs and rTposition.Few studies showed increased levels ofaminotransferase (alanine aminotransferase,aspartate aminotransferase) and also ofalcohol dehydrogenase and glutathioneS-transferase but the phenomenon is transientas these enzymes returned to normal valueswithin 1-3 days. 21 These changes are clinicallysilent in patients with a normal liver function.Even in selected patients of Child-Pughclasses A and B with compensated cirrhosis26CMEsome laparoscopic procedures ( cholecystectomy,appendectomy, splenectomy )seem to be safe, in any case safer than the'open' procedures. 225. TemperatureThere is a 0.3C fall in core temperature forevery 50L flow of CO 2due to the continuousflow of dry gases over the peritoneal surfacesunder pressure because of the JouleThompson effect (sudden expansion of gas),higher flow rate and leakage through the ports.If the gas used is dried, the heat expenditureto humidify the dry gas is much more than justwarming dry CO 2. Insufflation of gas at bodytemperature is recommended.6. Hormonal effectsLaparoscopy elicits a classic stress responsebut a lessor degree as evidenced by theincreased in the concentrations of plasmaACTH, cortisol, epinephrine, norepinephrine,glucagons, insulin, dopamine and renin.7. CNSLaparoscopy causes increase in ICP. Twomechanisms have been suggested to accountfor this rise in ICP: i) impaired venous return oflumbar venous plexus and head caused byincrease in IAP, ITP and Trendelenburg positioningand ii) increase intracranial flow due toelevated PaCO 2after abdominal insufflation.Safety of laparoscopy in patient with preexistingelevated ICP has been reported.However, more detailed human studies arerequired.8. IOPIncrease in IAP compresses IVC and increaseslumbar spinal pressure by reducing drainagefrom the lumbar plexus,then increases IOP.9. Pediatric patientIn pediatric patient P Et CO 2rises more rapidlyand achieves plateau values sooner in younger(11-24 months of age) versus older (5-14 yr ofage) children during CO 2insufflation. 23 Tobiasand coauthers24 noted small change in P Et CO 2(32±3 to 35±5 mmHg) and peak inflatingpressure (20±3 to 23±3 cm H 2O) afterinsufflation during brief laparoscopic inspection(15min) of the peritoneum. Changes in BP,HR, RR and TV are not always consistent butJMS * Vol 22 * No. 1 * January, 2008

CMEappear to be at least qualitatively similar tothose in adult patients. In another study, P Et CO 2concentration overestimate PaCO 2in longerlaparoscopic procedures.Insufflation of CO 2is limited to a pressure of 8-15 mm Hg (average 10mmHg) in children tominimise diaphragmatic splinting. Gaslesslaparoscopy is achievable by lifting theabdominal wall with special retractors orsubcutaneous wiring.With increases in IAP, the diaphragm is pushedrelatively more cephalad in children, therebydecreasing FRC. Diaphragm mobilitydecreases significantly as does overallrespiratory efficiency. Both respiratory rate andpeak airway pressures will increase, and therespiratory changes appear to be moresignificant with intraperitoneal thanextraperitoneal insufflation. 25 From a metabolicstandpoint, CO 2absorption is much moreefficient in children due to a relatively greaterabsorptive surface-to-weight ratio. 26 To preventhypercarbia, minute ventilation should beincreased, with close monitoring of P Et CO 2andarterial oxygenation in longer cases.Urologic laparoscopy in the pediatricpopulation is generally well tolerated. From acardiac perspective, a similar IAP-dependentphysiologic response can be anticipated. WhenIAP is maintained at 10 to 12 mm Hg or less,clinically significant hemodynamic compromiseis generally not observed; although increasesin SVR (162%) and decreases in cardiacperformance (67%) have been reported atpressures of 10 mm Hg. As with adults,bradycardia and asystole can occur during gasinsufflation from vagal nerve stimulation. 26Children typically have a higher resting vagaltone. Therefore, it is advisable to minimize IAPif visibility allows because lower IAP isassociated with fewer cardiac effects andinitiating pneumoperitoneum at a lowerinsufflation rate may be warranted.Low complication rate (1-2%) of laparoscopicsurgery in children has been reported.Complications are more or less same as inadults.Anaesthetic considerationsCareful pre-operative assessment is requiredfocusing on cardiac and respiratory reserve,liver and renal function because these organsmay be affected by the increase IAP. Medicalillness such as diabetes, hypertension, asthma,and hypothyroiddism need to be optimallycontrolled before surgery.In patients with pulmonary and cardiac disease,specialty consultation is generally necessary.The cardiac and pulmonary, liver and renalfunction should be carefully evaluated andoptimized so that the best preoperativecondition is achieved and the operative risk isacceptable. Concomitant use of cardiotoxic,hepatotoxic and nephrotoxic drugs should beavoided.Although reported safety of laparoscopy in someneurosurgical procedures in patients with preexistingelevated ICP, there is still the possibilityof laparoscopy causing increase in ICP.Patients with distorted abdominal anatomy(e.g.obesity, prior abdominal surgery withadhesions) are at higher risk for vessel ororgan damage or puncture during insertion ofVeress needle or larger trocar that encasesthe video camera. The experience and the skillof the surgeons must be counted.Conversion to laparotomy is always apossibility and must be taken into accountduring pre-anaesthtic assessment.Laboratory investigation of a patient should bebased on the evaluation of the patient (historyand physical examination). Electrolyte andcreatinine analysis, coagulation studies,chemistry panels including LFT, ECG, andchest radiographic films are advised. A bloodsample should be sent to the blood bank forcross-match. For procedures in which bloodloss is not anticipated, a type and screen issufficient. Autologous blood use should beencouraged if the patient is in good generalhealth.Prophylactic antibiotics should be givenspecially patients with valvular heart disease,a history of endocarditis, a vascular graft, orimplanted devices.PremedicationPremedication needs meticulous preparationkeeping in mind the onset and duration ofaction of drugs since many laparoscopicprocedures are now conducted on day carebasis.JMS * Vol 22* No. 1 * January, 2008 27

Preoperative visits are clearly helpful toalleviating anxiety. In addition to psychologicalpreparation, patients also benefit frompremedication. A short acting anxiolytic,benzodiazepine like midazolam allays anxietyand ensures a rapid recovery.An antiemetic like ondansetron (4-8mg IV),granisetron (40µg/kg BW IV), dexamethasone(8mgIV) reduces postoperative nausea andvomiting (PONV). A gastrokinetic such asmetoclo-pramide (10mg IV,1-3min prior toinduction of anesthesia) hastens gastricemptying and increased lower esophagealtone. An H 2antagonist (ranitidine 50mg IV 1-2h before induction of anesthesia) reduces thevolume and raised pH of gastric secretions.Premedication with oral omeprazole, 40mg atnight and in the morning also appears to behighly effective in patients with laparoscopicsurgeries. Anticholinergic like glycolpyrrolate0.1-0.2mg IM 1h prior to induction helps toreduce airway secretion. Pre-emptic analgesia(multimodal analgesic) is achieved withparenteral NSAIDS and opiods. Deep veinthrombosis (DVT) prophylaxis may berecommended.MonitoringMinimum mandatory monitoring like HR, ECG,NIBP, pulse-oximetry (SPO 2), continuouscapnography/capnometry (P Et CO 2) andtemperature probe should be used. P Et CO 2ismost commonly used as a noninvasivesubstitute for PaCO 2in the evaluation of theadequacy of ventilation during LC. Whenpneumoperitoneum occurs, the PaCO 2increases and may require an increasedminute ventilation (12-16%) to maintain normalPaCO 2close to preinduction levels. However,P Et CO 2may not be a satisfactory noninvasiveindex of PaCO 2if it exceeded 41 mmHg and iflarge volumes of CO 2insufflated. But P Et CO 2proved to be a reasonable approximation ofPaCO 2in those patients free from cardiopulmonarydisease. In contrast, patients withpreoperative cardio-pulmonary disease maydemonstrate significant increases in PaCO 2notreflected by similar increases in P Et CO 2duringinsufflation. PaCO 2may be underestimated byP Et CO 2if there is a reduction in CO or anincreased in V/Q mismatch, and occasionallyP Et CO 2may overestimate PaCO 2. In patients28CMEwith cardiopulmonary disease, it would seemprudent to monitor PaCO 2levels at times duringthe procedure to avoid problems withhypercarbia and acidosis.Patients with reduced cardiaorespiratoryreserve (ASA grade III / IV) will require invasivehemodynamic techniques such as arterial line,BP, TEE, periodic ABG measurement, PCWP,CVP and estimation of perfusion via centralvenous oxygenation in order to monitor thecardiovascular response to insufflation andinstitute therapy. Because the CO is inverselyproportional to the insufflation pressure in theabdomen, gradual insufflation should bemonitored by the anesthesiologists and a limitof 8-12 mmHg set as maximal inflationarypressure. Limiting the rT tilt may attenuatethe reduction in CO during peumoperitoneum.Significant hemodynamic compromise,refractory persistent hypercarbia, acidosis,and/or a reduction in SvO 2may necessitateexsufflation of the pneumoperitoneum orlowering of the insufflation pressure orconversion to open procedure. CO can bemonitored with pulmonary artery catheters orthe less invasive technique such esophagealDoppler.Anaesthetic techniqueDepending on the duration and type ofsurgeries, laparoscopic procedures can beperformed under general, regional (epidural orspinal anesthesia or combined spinal-epidural,CSE) or local anesthesia (infiltration of localanesthetic with IV sedative).General anaesthesia:General anesthesia (IV induction followed bymuscle relaxant, cuff endotracheal intubationand controlled ventilation - gold standardtechnique) is usually perferred because ofpatient discomfort associated with creation ofthe pneumoperitoneum and the extent ofposition changes associated with theprocedure. During pneumoperitoneum,controlled ventilation must be adjusted tomaintain P Et CO 2at approximately 35mmHg byincreasing minute ventilation by 10-25%.Tracheal intubation with positive pressureventilation under GA is usually favored formany reasons 1) it protect airway and preventthe risk of regurgitation and acid aspirationJMS * Vol 22 * No. 1 * January, 2008

CMEfrom increase IAP during insufflation. Althoughoperations like laparoscopic gastrostomy,jejunostomy, herniorrhaphy, gynecological andpelvic surgeries and other minimal procedureshave been performed using local or RAcombined with IV sedative, chances ofaspiration of gastric contents is very high withthese patients than GA 2) Increase in IAP andTrendelenburg positioning hindersspontaneous breathing and may compromiserespiratory exchange. There lies the necessityfor controlled ventilation at high TV which areused to prevent hypercarbia and to reduceatelectasis including depression of ventilationby anesthetic agents, absorption of CO 2fromthe peritoneal cavity and mechanicalimpairment of ventilation by pneumoperitoneumand the initial steep Trendelenburgposition. The obese patient would also benefitfrom intubation to decrease the likehood ofhypoxemia, hypercarbia and aspiration. PEEPmay be applied to reduce basal atelectasis.Airway pressure should be carefully monitoredand vigilance for pneumothorax maintained.The relatively high peak inspiratory pressurerequired because of the pneumoperitoneum 3)the need for neuromuscular blockade(muscular relaxation and immobile operativefields) during surgery to allow lower insufflationpressure provide better visualization and aidssurgeons to performed a rapid safe procedurewithout coughing, retching and unexpectedpatient movement 4) CO 2insufflates the entireabdomen including the inferior aspect of thediaphragm and may cause significantdiscomfort or pain as the phrenic nervesoriginate from the nerve roots of 3rd,4th and5th cervical vertebrae, diaphragmatic pain isdifficult to treat with local or RA. Likewise,anesthesia for manipulation of abdominalorgans and peritoneal traction may be difficultto achieve using local or RA. 5) skill andefficiency of the surgeon may be necessary tocomplete a laparoscopic procedure in thetimely manner necessary for patientsexperiencing laparoscopy under LA or RA.6) the placement of an orogastric or nasogastrictube and urinary catheters to empty thestomach or bladder is an additional discomfortthat may be avoided by GA and minimize therisk of visceral perforation during trocarintroduction and optimizise visualization.Preloading with crystalloid solution is recommendedto prevent the haemodynamicchanges during pneumoperitoneum. Atropinemay be administered at induction to preventbradycardia.Any modern IV or volatile anesthetics (such aspropofol, isoflurane, sevoflurane anddesflurane) may be used to maintainanesthesia, with the exceptions of halothaneand N 2O. Practically, balanced anesthetictechnique with O 2, N 2O, volatile anestheticagents, relaxants, NSAIDs and opiods (e.g.tramadol, butorphanol, fentanyl, remi-fentanil,sufentanil etc.) is still applied. Inhalationalanesthetics like isoflurane, sevoflurane anddesflurane show least sensitivity to arrhythmiasin the presence of increased catecholaminesdue to hypercarbia and maintain hemodynamicstability throughout the perioperative period,ensure rapid recovery with minimal PONV andtherefore may be suitable agents to use duringCO 2insufflation. These agents are favouredfor patients with compromised cardiac function.Because the CO 2may increase duringlaparoscopy especially if the patient breathesspontaneously, cardiac arrhythmias may occurif halothane used. However, in our experiencelow concentration of halothane and controlledventilation, the incidence is less. If ventilationis controlled, laparoscopy does not precludeuse of halothane. Currently, spontaneousrespiration is only recommended for shortlaparoscopic procedures. Propofol infusion isalso an excellent choice for general anestheticin the presence of raised catecholaminesduring insufflation. So, it can be used analternative to volatile anesthetics. But propofolshould perhaps be avoided when anesthetizingwomen for pronunuclear-stage transfer ofembryos because this anesthetic results in alower ongoing pregnancy rate (29%) whencompared with isoflurane use (54%). N 20 hasbeen blamed to contribute to PONV and boweldistention, intra-abdominal fire (N 2O act as anoxidizing agent to fuel sources) and mayexpand any CO 2emboli into the venousvasculature. N 2O may be replaced bysevoflurane and desflurane which are havingblood gas solubility constant similar to N 2O andare useful alternative agents. The omission ofN 2O reduced the risk of PONV by 28%.However, there is no conclusive evidenceJMS * Vol 22* No. 1 * January, 2008 29

demonstrating a clinically significant effect ofN 2O on surgical conditions during LC or onthe incidence of PO emesis. Therefore, N 2Omay still be a useful adjuvant during GA forthis procedure. Its omission in laparoscopicsurgery might also increase awareness duringsurgery. The advent of parenteral perioperativeNAIDs and the tendency for less PO painassociated with the laparoscopic approachmay obviate perioperative narcoticadministeration.Following induction of anesthesia the urinarybladder is decompressed and a nasogastrictube inserted to empty the stomach therebyreduces trauma to intra-abdominal contentsat the time of trocar insertion and may improvelaparoscopic visualization and facilitatesretraction of right upper quadrants.Patient positioning should be done graduallyto avoid haemodynamic changes. The positionof the endotracheal tube (ETT) should bechecked after any change in position and afterinsufflation to prevent displacement of ETT intomainstem bronchus with subsequentinadvertent single-lung ventilation. To lessenthe possiblility of mainstem bronchial intubation,the depth of endotracheal intubation may bereduced by 1.5cm, the approximate cephaladdisplacement of the carina duringpneumoperitoneum.Use of LMA during laparoscopic surgeriesremains controversial for two reasons. a)Aspiration of gastric contents has beenobserved during control ventilation. Becausethe LMA does not partition the trachea fromthe esophagus as cuff ETT does, gastriccontents may be more likely to be aspirated.Moreover, peritoneal insufflation andTrendelenburg positioning may compress thestomach and thereby cause gastric contentsto be expelled in the esophagus, with migrationinto the trachea. However, the possibility oftracheal aspiration is mitigated by placementin the Trendelenburg position that allowsdependent drainage of gastric contents andb) If spontenous ventilation is required, theLMA limits the maximum positive pressure tothat pressure created by the seal in theposterior pharynx, about 20mmHg. Given thedisplacement of the diaphragm caused by theIAP, 8 to 12mmHg, positive pressure ventilation30CMEmay be compromised. Report of safe use ofLMA in laparoscopic surgeries has beenidentified except less than 0.14% of patientsuffered airway regurgitation, vomiting andaspiration of gastric contents. So, use of anLMA may not be precluded by abdominalinsufflation in the absence of othercontraindication to LMA insertion.The pressure points should be padded withcare to prevent nerve compression injuries.Post-operative pain reliefi. Local anesthetics infiltration of the port sites andlocal anesthetics applied directly to the operative site.ii. Pain can be quickly controlled by a systemicmultimodal approach (opiods for central painmodulation, and wound infiltration with LA andNSAIDs to attenuate peripheral pain). Shouldertip pain is reduced by setting the patient upearly in recovery. Intraperitoneal (IP)administration of LA (10ml of 0.5% bupivacaine)has been reported to reduce PO shoulder painafter minor or gynecologic laparoscopicprocedures. Experiences with IP localanesthetic administration after LC have rangedfrom significant reduction in PO pain duringthe first 48h with 10ml of 0.5% bupivacaine 27to no effect in reducing PO pain, improvinglung function or attenuating metabolicendocrine responses with 20ml of 0.25%bupivacaine 28 .RecoveryHaemodynamic monitoring should becontinued into the PO period. Decreased PaO 2and increased O 2demand observed afterlaparoscopy necessitates O 2administrationpostoperatively, even to healthy patients.Local anaesthesiaLaparoscopy under local anesthesia(LA) withIV sedation has been reported to be successful.Although PO recovery is rapid, increased inthe patients discomfort, diaphragmatic pain, therisk of aspiration of gastric contents anddifficulty in breathing due to CO 2insufflation,and difficulty in manipulation and suboptimalvisualization of abdominal organs andperitoneal traction, preclude the use of thislocal anesthesia technique for LC. Success withlocal anesthesia requires a relaxed and cooperativepatient, and an experienced surgeon.IAP should be as low as possible to reduceJMS * Vol 22 * No. 1 * January, 2008

pain and ventilatory disturbances. Thetechnique is largely limited to briefgynecological procedures (e.g. laparoscopictubal sterilization) in young, healthy andmotivated patients.Regional anaesthesiaSpinal and epidural or CSE techniquespresents another alternative for laparacopicsurgeries. The same disadvantages thatassociate with LA may also be faced in regionalanesthesia (RA). Laparoscopy under RA is bestsuited for lower abdominal procedures.However, procedures in the upper abdomenhave been managed effectively. A high level(Sensory block upto T4-T5) is necessary forupper abdominal surgical laparoscopy forcomplete muscle. General anesthesia wouldtherefore be the preferred technique for thispatient.In general, local or regional anesthetictechniques have not been advocated for LCor other upper abdominal laparoscopicprocedures.ComplicationsComplications of laparoscopic surgeries candevelop depending on IAP, the amount of CO 2absorption, the circulatory volume of thepatient, the ventilation technique used, theunderlying pathologic conditions and the typeof anesthesia. Anesthesiologists caring forpatients in intra-operative period and PACUshould maintain high degree of suspicion forinadvertent unrecognized injuries/complications with these laparoscopicprocedures. Therefore, adequate monitoringand correct management are important toprevent the development of complications.Incidence of laparoscopy complications:a) Overall complication rate : 4.0 to 5.7 per1000 laparoscopic procedures.b) Complication rate according to type ofsurgery:i. 12.6 per 1000 cases in operative cases,ii.0.6 per 1000 cases in diagnosticlaparoscopyc) Death rate : 0.1 to 1 per 1000 cases(approximately)1. Hemorrhage:CMELacerated injuries of major vessels (e.g. aorta,epigastric, iliac, hypogastric, mesentericvessels, portal vien and other vessels) maybe unrecognized because of limitation oflaparoscopic visualization and is usually dueto the veress needle or trocars insertion,subsequent use of scissors, probes,electrocautery, ultrasonically activated(ultracision, harmonic) scalpel and lasers.Other causes of hypotention and shock (e.g.pneumothorax, gas embolism, rT position,anesthetic overdose etc.) during laparoscopymust be considered.Management :i. Require early recognization andmanagement,ii. Usually presented as unexplainedprofound hypotension unresponsive tofluid and mild vasopressor therapy (e.g.ephedrine) is especially concerning duringlaparoscopy and may be an indication fortermination of the procedure or conversionto laparotomy and repair of vessels ifrequired.iii. Use of open technique (Hassonmini-laparotomy) with a blunt needle toreduce the incidence of perforation,iv. To restore vascular volume withfluids,blood and blood product andestablishment of additional IV lines, andto decrease depth of anesthesia.2. Hypotension (upto 13% of laparoscopies)Hypotention is due to IV anesthetics likethiopentone, propofol, inhalational anestheticslike halothane, isoflurane, sevoflurane,decrease volume status of the patient, suddeninflation of abdomen (> 20mmHg) with CO 2compressing IVC, high ITP during IPPV/PEEP,vagal response, injuries to major vessels,venous embolism and hypercarbia which mayinduce dysrhythmias. 12.9% of patientundergoing LC developed intra-operativehypotension.Treatment:i. Preoperative fluid loading (10ml/kg),vasopressor therapy and vagolytic agents.ii. Gradual induction with IV anesthetics andJMS * Vol 22* No. 1 * January, 2008 31

CMEsupplementation of inhalationalanesthetics.iii. Slow insufflation and low IAP should beused as far as possible. Some procedurescan be done at 5-7 mm Hg, but the requiredabdominal distension varies with surgicalprocedure, anatomical conditions andmyorelaxation. The recommendation is toapply the lowest possible pressure levelfor each particular case.iv. Intermittent pneumatic compressionincreases VR and cardiac preload.v. Extreme position should be avoidedsince it may have an influence both oncardiac and ventilation.vi. Explore and repair the injuries vessels asrequired and treatment of gas embolism.3. Hypertension:The risk of hemorrhagic stroke, pulmonaryedema and cardiac decompensation is highfollowing hypertensive episodes. Because ofthe pharmacological interventions, incidenceof hypertensive episodes is rare. But itsincidence seems to be higher at the beginningof insufflations, when the increasing (but stillbelow 10 mm Hg) IAP increases the VR byreducing the BV in the splanchnic vasculature.This increased preload augments CO andarterial pressure. The situation commonlyoccurs in patients having sufficientintravascular volume loading, i.e. ~10 ml/kgprior to CO 2insufflation, a loading which isnowadays standard for the prevention ofhypotension.Causes are due to light plane of anesthesiaand CO 2insufflation and hypercabia. Othercauses of hypertension must be explored.Treatment :a) To increase depth of anesthesia withpropofol, inhalational agents, opiodstramadol,butorphanol, fentanyl,remifentanil etc,b) Antihypertensive agents like calciumchannel blocker, ß- blocker like esmololand vasodilator like nitroglycerine arealso selectively used.c) Slow insufflation with low IAP as far aspossible and correction of hypercarbia.4. Arrhythmias(14-27% of laparoscopies):Cardiac arrhythmias may occur duringlaparoscopy with CO 2.i) Bradyarrhythmias (sinus bradycardia, nodalrhythm, atrio-ventricular dissociation andasystole) :The causes are due to increased vagusmediatedcardiovascular reflex by rapid andexcessive stretching of the peritoneum at thebeginning of peritoneal insufflation, duringtrocar insertion, or manipulation of the viscera,aggravated by lighter plane of anesthesia,patient on ß-blocker, stimulation of trachealtube during biplolar electrocauterization andCO 2embolization. Cardiac arrest (2-20 of1,00,000 laparoscopies) could be araised.Among the causes of cardiac arrest, profoundvasovagal response to rapid peritonealdistension and gas embolism are particularlyassociated with laparoscopy.ii) Tachyarrythmias (Sinus tachycardia andventricular extrasystoles) are also possible.There should be a distinction between sinustachycardia and ventricular extrasystoles whichare due to the release of catecholaminesfollowing CO2 insufflation (respiratory acidosisand increased sympathetic outflow) andhypercarbia specially in the presence ofhalogenated anesthetic agents.Treatment:i. Usually transient and spontaneouslyresolve with the reduction of IAP.ii. 100% O2 hyperventilation.iii. Elimination of stimulation(e.g. slowinsuflation if possible defflation ofperitoneum, avoidance of halothane inpresence of hypercarbia).iv. Pharmalogical therapy of arrhythmias(e.g.use of vagolytic drug like atropine, ß-blocker - esmolol) should be available.v. To deepen plane of anesthesia, keep CO 2in the normal range, correct hypoxia as itmay contribute the occurrence ofarrhythmias and treat CO 2embolization.5. Injuries:Injuries to bile duct, stomach, liver, spleenuterus, urinary bladder, bowel burns and bowelgas explosions, and vessels are associatedduring insertion of needle and trocars.32JMS * Vol 22 * No. 1 * January, 2008

Fulguration (thermal) and also peritonitis arepossible if a viscus is perforated during trocarintroduction.Diagnosis of injury to stomach and bowel :a) Visualization of mucosal lining after theinsertion of laparoscopic,b) Increase IAP at the beginning ofpneumoperitoneum,c) Asymtomatic distention of peritonealcavity,d) Aspiration of gastric particulate matterthrough the lumen of the needle,e) Feculent odour if trocar enters intothe large bowel,f) Occur usually in patients with previousabdominal surgeries,Decompression of the urinary bladder and oral/nasogastric tube insertion before surgery mayreduce injuries to intra-abdominal organs. Useof "Hasson" minilaparotomy technique hasalso been advised for pneumoperitoneumcreation to avoid injuries associated with blindVeress needle and trocar insertion.6. Pulmonary dysfunction (persist for at least24 h PO) :FRC, FEV 1, TLC, PEFR and VC are reducedby approximately 25%(30-38%) following LCas opposed to a 50% reduction following opencholecytectomy. Diaphragmatic dysfunctionafter laparoscopic cholecystectomy may berelated to diaphragmatic tension during thepneumoperitoneum through somatic afferentsarising from the abdominal wall which exert aninhibitory action on phrenic nerve dischargeor visceral afferents originating in GB area orresidual pnemoperitoneum. Laparoscopicsurgery may reduce PO pulmonarycomplications by avoiding the restrictivepattern of breathing that usually follows upperabdominal surgery.Pulmonary complications are represented byhypoxemia, barotraumas, pulmonary edemaand atelectasis.Only patients with compromised cardiopulmonaryfunction such emphysema, COPDand cardiac disease are at risk for thedevelopment of hypoxemia. If appropriateventilation and oxygen administration are notable to reverse hypoxemia, conversion to opensurgery may be required. Most of the patientswith normal cardiopulmonary function willCMEsurpass these pathophysiological changeswithout developing hypoxemia or severehypercapnia. Elevated airway pressures anddecreased compliance could be associatedwith pulmonary barotrauma, which may occuras an immediate pneumothorax. Although thereis chance of impairment of pulmonary functionand gas exchange during laparoscopy, therecovery of pulmonary function is more rapidand the rate of pulmonary sequelae(atelectasis) or complications (pneumonia) islower than after open surgical procedures,irrespective to the magnitude of the proceduresor age of the patient.7. Mainstem bronchial intubation:This can be prevented if position of the ETT ischecked regularly after CO 2insufflation andevery change of patient's position.8.Subcutaneous emphysema (sc) (0.3-3.0%laparoscopic procedures):Usually, the gas passes through any disruptionof the peritoneum into the sc tissue and intothe retroperitoneal tissue. Rarely, it is theconsequence of inadvertent placement oftrocars and direct insufflation into the sc tissue.Further extension of sc emphysema may occuron larger areas (extremities, neck) and evento the mediastinum and pleura thereby causingpneumomediastinum and pneumothorax. Thereverse situation is also possible, i.e. theextension of a pneumomediastinum into the sctissue. If there is an involvement of the neck itis also important to monitor the upper airwayfor obstruction. As the sc emphysemaconstitutes an important reservoir of CO 2intothe body, it leads to an increase in end-tidalCO 2concentrations and therefore increasedventilation is required.Diagnosis :i) Crepitus in the abdominal wall and otherparts of the body if generalised.ii) Abrupt increase in EtCO 2iii) Upper airway for obstruction if there isinvolment of the neck.Treatment :a) Spontaneuos resolution possible,b) Discontinuance of N 2O administration,increase in ventilation, continuation ofmechanical positive pressure ventilationin the immediate PO period and ABGanalysis.JMS * Vol 22* No. 1 * January, 2008 33

9. Capnothorax (pneumothorax, pneumomediastinumand pneumopericardium) :Pneumothorax could be developed from pleuraltears during laparoscopic surgical proceduresat the level of the gastroesophageal junction(Fundoplication,15%), adrenalectomy andaccidental diaphragmmatic injuries. Otherpossible routes for gas to enter the thoraciccavity during pneumoperitoneum via anycongenital diaphragmatic defects (e.g. foramenof Morgagni or foramen of Bochdalek) aroundthe esophageal and aortic hiatus and via anyprocedure that can damage the falciformligament (e.g. during insertion of a Veressneedle), opening of embryonic channelsbetween the peritoneal cavity and the pleuraland pericardial sacs, rupture of pre-existingcongenital pulmonary bullae as a result ofincrease alveolar inflation from increase minuteventilation, as a result of CO 2dissecting andspreading through retroperitoneum or by theextension of a sc emphysema up to pleura,resulting in pneumothorax and pneumomediastinum(e.g. after laparoscopic extraperitonealinguinal hernia repair).Diagnosis :i. Increase EtCO 2,ii. Oxygen desaturation,increased airwaypressure and reduced air entry, andshould be confirmed by radiography,iii. Decrease thoracopulmonary compliance,iv. Abdominal movement of onehemidiaphragm on laparoscopic view.Treatment :i. Avoid thoracentesis unless necessary asspontenous resolution occurs within30-60 min after insufflation.ii. Discontinuance of N 2O administration,decrease in insufflation pressure and IAPand continuation of mechanical ventilation(PEEP if necessary) and adjustmentof its setting.iii. Pneumomeidastineum and pneumopericardiumare manisfested as the abovepicture mostly. Usually desufflation ofabdomen is adequate to relieve suchcomplications.10. Venous CO 2embolism (0.0014-0.6% oflaparoscopies) :Embolism occurs from unintentionalinsufflations of gas into an open vein/tear in a34CMEvessel in the abdominal wall or peritoneumduring introduction of the pneumoperitoneumneedle, subsequently trocar placement or laterduring sharp dissection or electrocautery,ultra-sonically activated (ultracision,harmonic) scalpel or lasers at the operativesite and presence of pressure gradient to drivethe gas from the intra-abdominal cavity intothe venous vasculature.CO 2> 1 L/min may enter the vessels beforesignificant embolism.Emboli may lodge in the right atrium/ventricleto form a gas lock which may impair VR andobstruct right ventricular outflow resulting insudden CV collapse.Emboli may also enter pulmonary circulationresulting in hypoxemia, acute pulmonaryhypertension, pulmonary edema and rightheart failure and CV collapse and death.60% of symptomatic cases occur during initialinsufflation.Diagnosis :i. Transient increase EtCO 2in early stageand decrease later due to moredecreases pulmonary dead space andcardiovascular collapse.ii. Increase pulmonary artery pressure,profound hypotension, dyspnea, hypoxia(cynosis), Mill wheel murmur onauscultation, arrhythmias or asystole anddeath.iii. TEE is an extremely sensitive monitor todetect material embolized into the rightheart and can identify all CO 2, even thosewith volumes as small as 0.1mL/kg. 68%of asymptomatic patients have CO 2bubbling in the right chamber of the heartduring laparoscopic cholecystectomy.iv. Doppler techniques are the most sensitiveindicators of embolic phenomena.Transcranial Doppler experiments haveshown that CO 2bubbles may even reachthe cerebral circulation.Treatment:i. Immediate cessation of CO 2insufflations,defflation of pneumoperitonium anddiscontinuation of N 2O.ii. Patient turned to left lateral decubitus withhead down position (Durant'sJMS * Vol 22 * No. 1 * January, 2008

CMEposition) to allow the gas to rise into theapex of the right ventricle and prevent intothe pulmonary. The Trendelenburgposition is also sufficient as it has thesame effect.iii. Hyperventilation of patient andadministration of 100% O 2helps rapidCO 2elimination. Use of PEEP to preventparadoxical emboli remains controversialfor gas emboli.iv. Removal of air through central venouscatheter, aggressive cardiopulmonaryresuscitation, administration of IV fluidsand catecholamine, management ofarrhythmias, hyperbaric O 2therapy andcardiopulmonary bypass.Use of Hasson technique is recommendedinstead of the Veress needle becauseincidence of gas embolism is less with Hassontechnique (0%) than the Veress needletechnique (0.001%). 2911. Hypercarbia :Causes of hypercarbia are incresased IAP andTrendelenburg position. Other causes ofhypercarbia must be sought.Treatment :Hyperventilating the patient bycomparatively less TV to preventpulmonary barotraumas and greaterventilatory frequencies, and use of lowerinsufflation pressure as far as possible.12. Positioning of patients :Nerve injuries are usually due to inappropriatepositioning of the patient or pressure exertedby surgical teams, hyperabduction of shoulderjoint (brachial plexus injury) and duringlithotomy position (perineal, femoral andexternal cutaneous nerves injuries). Usuallyspontanous recovery but preventable ifhyperabduction is avoided at the shoulder jointand placement of arms by the side of thepatient in adducted position.13. Retention of foreign bodies due to limitedvisualization.14. PONV :PONV is common (53-70% in LC). Prophylacticantiemetics like 5-HT 3-antagonist (ondasetron,4-8mgIV, granisetron, 40µg/kg BW IV),dexamethasone (8mgIV), metochopramide(10mg IM/ IV), H 2-blocker (ranitidine, 50mgIV)and acupressure are recommended.Combination of 5-HT 3antagonist anddexamethasone is quite effective.15. PO pain including shoulder tip pain:Shoulder tip pain is common in laparoscopicsurgeries. Diaphragmatic peritoneal irritationproduces pain which is referred to the shouldervia phrenic nerve. The pain is due toconversion of CO 2to carbonic acid in bodyfluids including intrapleural which is irritant tothe peritoneum and subdiaphargmatic gaseousaccumulation.Treatment :i. Removal of all gases at the end of surgery,ii. LA instillation in the subdiaphargmaticspace, application of multimodal analgesiausing NSAIDs and opiods analgesic andLA infiltration in the port sites.iii. Sitting the patient up early in recovery.16. Deep vien thrombosis :Venous stasis in the lower limbs(40%reduction of femoral venous blood flow) andmicroendothelial injury are due to vasodilatationand platelet hyperaggregability (Virchow’striad) are involved during pneumoperitoneum,aggravated by reverse Trendelenburg position.Treatment :Low molecular weight heparin, sequentialcompression in the intraoperative period andearly ambulation are also advocated.17. Infections : Laparoscopy increases risk ofspread of infection and should be treated withantibiotics.18.Spread of malignancy : Tumourimplantation at the port site is possible.19. Incisional hernia : Preventable if meticuloussuturing and care the surgical wound aretaken.ConclusionLaparoscopic surgical techniques have beenrapidly accepted by surgeons worldwide butpresents new challenges to theanesthesiologists. A thorough knowledge of thephysiological changes and the advantagesof keeping IAP less than 12 mm Hg and thespecial hazards and complications likehemorrhage, injuries to organs, CO 2embolism,capnothorax associated with the laparoscopictechniques and vigilant monitoring particularlyserial arterial blood gases and correctmanagement are the backbone for anuneventful and complete success.JMS * Vol 22* No. 1 * January, 2008 35

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Tuech JJ, Pessaux P, Regenet N, Rouge C,Bergamaschi R, Arnaud JP. LaparoscopicCholecystectomy in cirrhotic patients. SurgLaparosc Endosc Percutan Tech 2002;12 :227-231.23. Hsing CH, Hseu SS, Tsai SK, et al. Thephysiological effect of CO2 pneumoperitoneumin pediatric laparoscopy. Acta Anaesthesiol Sin.1995; 33 : 1.24. Tobias JD, m Holcomb GW, Rasmuggen GE, etal. General anaesthesia using the laryngeal maskairway during brief, laparoscopic inspection of theperitoneum in children. J Laparoendosc Surg.1996 ; 6 : 175.25. Halachmi S, El-Ghoneimi A, Bissonnette B, et al.Hemodynamic and respiratory effect of pediatricurological laparoscopic surgery: a retrospectivestudy. J Urol. 2003 ; 170(4 pt2) : 1651-1654.26. Pennant JH. Anesthesia for laparoscopy in thepediatric patient. Anesthesiol Clin North Am. 2001 ;19(1) : 69-88.27. Weber A, Munoz J, Garteiz D,et al. Use ofsubdiaphragmatic bupivacaine instillation of controlpostoperative pain after laparoscopic surgery. SurgLaparosc Endosc 1997 ; 7 : 6-8.28. Rademader BMP,Kalkaman CJ, Odoom J,et al.Intraperitoneal lacal anaesthetics after laparoscopiccholecystectomy : effects on postoperative pain,metabolic responses and lung function. Br.J Anaesth1994 ; 72 : 263-6.29. Bonjer HJ, Hazebroek EJ, Kazemier G, Giuffrida MC,Meijer WS, Lange JF. Open versus closedestablishment of pneumoperitoneum inlaparoscopic surgery. Br J Surg 1997;84 : 599-602.36JMS * Vol 22 * No. 1 * January, 2008

CASE REPORTLow dose intrapulmonary artery rt-PA thrombolysis in a patient with massiveacute pulmonary thromboembolism with history of recent cerebrovascularaccident: a case report1Dhanaraj Singh Chongtham, 2 S. ReddyA 59 year old female, known case ofhypertension since 12 years was admitted incoronary care unit of PGIMER, Chandigarhwith history of increasing shortness of breathtwo days prior to admission. She also hadhistory of restlessness associated with cold andcalmy skin since the morning of admission.There was history of cerebrovascular accident10 days back with a large left parietal infarcton CT head (Fig 1). On examination, she wasrestless, tachypnoic (RR=40/min), pulse of 106/min, BP of 70/60 mmHg on dopamine andnoradrenaline support.Chest was clear andcardiovascular examination revealed normalS1 & S2 with no murmur. On neurologicalexamination, shewas conscious,oriented with righthemi paresis and upgoing right plantar.Her right lower limbwas swollen andtender with clinicalevidence of deepvein thrombosis. Fig 1 .NCCT head showing largeleft parietal infarction of the brain.On investigation, ECG showed sinus1. Assistant Professor of Medicine, Regional Institute ofMedical Sciences (RIMS), Imphal. Formerly Senior Resident,Cardiology, Postgraduate Institute of Medical andResearch (PGIMER), Chandigarh, 2. SeniorResident cardiology, Department of cardiology, PGIMER,Chandigarh.Corresponding author :Dr. Dhanaraj Singh ChongthamAssistant Professor of Medicine, RIMS, ImphalE-mail: dhanaraj_chongtham @ yahoo.comtachycardia, normal axis with 1mm STsagging in lead V1 to V6 with CPK-MB of 27iu/L. Echocardiography revealed dilated RA/RV,paradoxical IVS motion, mild TR (RVSP=RAP+ 28mmHg) with small LV cavity andgood contractility(EF=50%). CompressionUSG both lower limb showed right femoropoplitealdeep vein thrombosis. An emergencyCT angio chest showed saddle thrombusextending into both pulmonary arteries(Fig 2).Fig 2. CT pulmonary angiography showing thrombus in leftpulmonary artery.Patient was initially supported with IV fluid,double ionotropes, oxygen inhalation,antiplatelet and LMWH (Enoxaparin) therapy.Her condition deteriorated in spite of thetreatment with falling PaO2, arterial oxygensaturation and increasing tachypnoea. Shewas put on mechanical ventilator with CMVmode under sedation .In view of the intractable hypotension in spiteof the optimum dose of double ionotropicagents with type 1 respiratory failure needingventillatory support, decision for low doseintra-arterial rtPA thrombolysis was taken withthe idea that it may reduce the chances of ICJMS * Vol 22* No. 1 * January, 2008 37

CASE REPORTFig 3. 6 F Pigtail catheter inpulmonary artery causingcatheter fragmentation ofPulmonary thrombus followedby intrapulmonary arteryadministration of rtPA.was mechanicallybroken up with 6F pigtail catheter by manualmanipulation (Fig 3). A local in situintrapulmonary artery 4 mg bolus rtPA wasgiven followed by infusion of 46 mg in 45 min.It was followed by subcutaneous Enoxaparintherapy as her partial thromboplastin time after2h of lysis was 46sec. A repeatEchocardiogram study next day showedimprovement in RV contractility and reductionin RV size. Patient’s hemodynamicparameters gradually improved andionotropes were tapered off by day 3. Patienthad small GI bleed of about 150 ml on dayone, which was treated with iv proton pumpinhibitor (pantoprazole). No further recurrenceof GI bleed was noted afterwards. There wasno subsequent deterioration of theneurological status of the patient. She wasgradually weaned off ventilator by day 5. Arepeat CT head showed no evidence of ICbleed. She was planned for maintaining onoral anticoagulant treatment with warfarin witha target INR of 2 to 3. A decision for puttingIVC filter was also taken to prevent furtherrecurrence of pulmonary embolism fromdislodged right lower limb DVT and was putbefore the patient was discharged from thehospital.DiscussionThrombolysis in acute pulmonary embolism isan approved modality of treatment in patientswith features of RV dysfunction or hypotensionwith a window period of two weeks from theonset of symptoms. 1 It results in more rapidclot dissolution than treatment with heparinalone. Thrombolytic therapy appears to reduce38bleed in this patientwho had recent CVAwith large leftparietal infarct. Shewas taken up in thec a r d i a ccatheterizationlaboratory and apulmonaryangiogram donethere showed totalcut off of mainpulmonary artery.Thrombus in MPAmortality in patients with shock due to massivePE, probably by rapidly restoring pulmonaryblood flow and improving RV function. It alsoenhances the resolution of small peripheralemboli and reduces recurrence of PE.FDA approved thrombolytic regimens for PEincludes 2 : 1) Streptokinase: 250,000 IU as aloading dose over 30 min, followed by 100,000iu/h for 24h – approval in 1977. 2) Urokinase:4,400 iu/kg as a loading dose over 10 min,followed by 4,400 iu/kg/h for 12 to 24h –approval in 1978. 3) rt-PA: 100mg as acontinuous peripheral intravenous infusionover 2h – approval in 1990.In an international multicenter randomized trial 3 ,it was found that a smaller bolus of rt-PA 0.6mg/kg/15 min(maximum of 50mg) is safer thana larger dose administered over 2h. Localthrombolytic therapy has several potentialadvantages over systemic administration. Firstby delivering the drug directly into thepulmonary artery, local therapy might beaccompanied by more rapid and or morecomplete clot lysis. Second, because of highlocal drug concentration, low dose mightachieve the same degree of thrombolysis ashigher systemic doses. Finally, local therapymight be accompanied by a lower risk ofbleeding, especially if lower doses are used.A randomized control trial compared peripheralintravenous and local pulmonary artery infusionof rtPA in patients with angiographicallydocumented PE. 4 Both routes of administrationcaused similar rate of lysis, bleeding andinduction of a systemic lytic state. It is the onlycontroled study comparing between these twomodes of administration.Local pharmacological thrombolysis using lowdoses of urokinase or rt-PA and either highpressureintraembolic infusion or mechanicalclot disruption has been investigated. In onereport 6 , six patients with contraindication tosystemic thrombolysis received low-doseintraembolic thrombolysis using specialcatheter in a nonrandomized study, systemicfibrinolysis and bleeding did not occur, and allpatients were found to have at least a 20%angiography improvement by 1h and 50 to 90%JMS * Vol 22 * No. 1 * January, 2008

CASE REPORTimprovement by 24h 6 .Various methods of catheter embolectomy andmechanical fragmentation of thrombus havebeen described. 5 These catheterizationmethods include mechanical fragmentation ofthrombus with a standard pulmonary arterycatheter, clot pulverization with a rotatingbasket catheter, percutaneous rheolyticthrombectomy and pigtail rotational catheterembolectomy.The present index case was taken up in thecatheterization laboratory and mechanicalfragmentation of thrombus was done with 6Fpigtail catheter under manual manipulation.In view of the associated large left parietalinfarct with higher chances for subsequent ICbleed, low dose (50mg) intrapulmonary arterythrombolysis was given. She respondedclinically by improvement in hemodynamicparameters with complete withdrawal ofionotropes by day 2. Repeat echocardiographystudy 24h later also showed improvement inRV function.Recent history of cerebrovascular accident withparietal infarct is a relative contraindication forthrombolysis in patients with acute PE.However, in patients with massive PEpresenting in shock with respiratory failure, therisk of IC bleed with thrombolysis is to bebalanced against the worse outcome asexpected without thrombolysis. This casereport described such a high-risk patient whowas successfully treated with low dose intraarterialrt-PA and manual fragmentation of thethrombus with pigtail catheter.References1. Konstantinides S, Geibel A, Heusel G, et al.Heparin plus alteplase compared with heparinalone in patients with sub massive pulmonaryembolism. N Eng J Med. 2002 ; 347 : 1143.2. Goldhaber S Z, Contemporary pulmonary EmbolismThrombolysis. Chest 1995; 107 : 45S-51S.3. Goldhaber S Z, Agnelli G, et al. Reduced Dose bolusAlteplase Vs conventional Alteplase infusion forpulmonary Embolism thrombolysis. An InternationalMulticenter Randomized Trial Chest 1994 ; 106 :718-24.4. Verstraete M, Miller G A H, et al. Intravenousand intrapulmonary recombinant tissue-typeplasminogen activator in the treatment of acutemassive pulmonary embolism. Circulation 1988;77: 353-60.5. Zites DP, Libby P, Bonow RO Braunwald E.Braunwald’s Heart Disease, 7 th editon. Philadelphia,Pennsylvania : Elsevier Saunders ; 2005 .p. 1789-1806.6. Tapson VF, Davidson CJ, Bauman, et al. Rapidthrombolysis of massive pulmonary emboliwithout systemic fibrinolysis: intraimbolic infusionof thrombolytic therapy. Am Rev Respir Dis. 1992;145 : A719.JMS * Vol 22* No. 1 * January, 2008 39

CASE REPORTAllergic fungal rhinosinusitis in an immunocompetent patient: a case report1M. Usharani Devi, 2 Binay Debbarma, 3 H. Lokhendro Singh, 4 Kh. Sulochana Devi, 5 M. Madhumangol Singh,1Kh. Ranjana DeviA 58 year old male patient was admitted tothe male ENT ward on 17th August'05 withthe complaints of pain at the area of left uppermolar teeth for one month and left sidedheadache, nasal obstruction and painfulswelling of the left face followed by gradualdevelopment of nasal obstruction since thelast 2 weeks. There was history of extractionof the 2 left upper molar teeth for caries teethone month back. Patient gave history of newexperience of intense irritation inside the noseand increase in swelling of the face wheneverhe consumed non-vegetarian food since hedeveloped the symptoms. On examination,patient had mild fever, mild degree of proptosiswith hyperemia in the left eye, swollen leftside of face and tenderness of left maxillarysinus. Left nostril was found congested withcrust formation and a polyp was seen at themiddle meatus.Routine hematological and biochemicalinvestigations reports were within normallimits except the ESR was 85 mm/1st hr.ELISA test for HIV antibody was non reactive.There was no history of tuberculosis. X-raychest PA view was normal. Contrast axial CTscan of PNS showed focal hyper attenuationin the soft tissue mass with destruction of1. Assistant Professor; 3. Associate Professor; 4. Professor,Deptt. of Microbiology, 2. Junior Resident; 5. Professorof Otorhinolaryngology, Regional Institute ofMedical Sciences (RIMS), Imphal.Corresponding author:Dr. M.Usharani Devi. Dept.of Microbiology, RIMS, Imphal,Manipur. PIN-795004.e-mail address: m_usharanidevi@hotmail.com40ostium and left medial wall of maxilla (Fig 1).Fig 1. Axial CECT of PNS showing focal hyperattenuation in distorted left maxilla.Endoscopic polypectomy with uncinectomyand Caldwell-Luc operation was performed onthe left side of the maxillary sinus. Themaxillary sinus was found to be enlarged andfilled with peanut butter and axle greaselooking necrotic tissue which was curetted out.There was also erosion in the posterior wallof left maxilla, communicating with pterygopalatine fossa. There was profuse bleedingduring the excision. The curetted materialswere sent for staining, aerobic, anaerobic andfungal cultures for isolation and identificationof the causative organisms andhistopathological examination.Microbiologically, the samples were processedby 10% KOH mount, Gram stain, ZiehlNeelsen stain, aerobic, anaerobic and fungalcultures. Fungal culture was done on two SDA(Sabouraud's dextrose agar) media withchloramphenicol. The media were incubatedat 25ºC (room temperature) and 37ºC for 4weeks to isolate the dimorphic fungi.Microscopic examinations of caseatic necroticJMS * Vol 22 * No. 1 * January, 2008

CASE REPORTtissue material in the stained films includingthe Z-N stain did not show the presence ofany microorganism. KOH mount revealedbranched septed hyphae, measuring the sizeof 3-6µm. Fungal culture at 37ºC after 1 weekrevealed powdery, green colonies with thereverse being white in color. Lacto PhenolCotton Blue (LCB) examination showedsmooth conidiophores, size about 300µm withsingle sterigmata covering upper half of thevesicle (Fig 2).Fig 2. Lacto Phenol CottonBlue preparation showingconidiophores with singleseries of sterigmata characteristicof A. fumigatus.Fig 3. Photomicrograph ofmaxillary tissue showingfocal necrosis (F.N),(H&E×40).Similar type of colony morphology was seenat 25ºC but growth was seen after 2 weeks ofincubation (slow growth). Finally the fungalgrowth was identified as Aspergillusfumigatus. Bacterial culture showed no growthafter 48 hours of incubation at 37ºC.Histological examination showed focalnecrosis with edematous mucosa and feweosinophils (Fig 3). Histopathologicaldiagnosis was inflammatory tissue and noevidence of malignancy.The patient was treated with fluconazole150mg daily for five days as soon as thepositive fungal culture report comes in additionto antibiotic cover up. There was no sign ofresponse of treatment with fluconazole. Theantifungal drug was changed to amphotericin-B infusion, given in the dose of 50 mg in 5%dextrose infusion once a day after an initialsensitivity dose and repeated on every thirdday. A course of prednisolone was also given.After 5 doses of treatment patient respondedto amphotericin-B infusion. A total of 44 dosesof amphotericin-B were infused and the patientbecame clinically symptom free.The left maxillary sinus was washout withnormal saline for twice at the gap of one weekbefore the patient was discharged. Mucusplugs were found in the first washing whichwas negative for fungal culture and theretained fluid of second washout was clear.X-ray of PNS showed reduced haziness onthe affected maxillary sinus compared toprevious X-ray. During the treatment periodthe serum creatinine level was found to beraised a little above the normal level butreturned to normal level at the end ofmedication. The routine blood examinationsand liver function tests were monitored duringthe treatment and were found to be withinnormal limits. The patient was discharged oncapsule itraconazole 200mgs daily for onemonth with advice for follow up at one monthlyinterval.DiscussionThe combination of nasal polyposis, crustformation and sinus cultures yieldingAspergillus spp. was first noted in 1976 bySafirstein 1 , who also observed the clinicalsimilarity with allergic bronchopulmomaryAspergillosis (ABPA). Subsequently thisdisease was known as allergic fungalrhinosinusitis (AFS).The AFS is a disease condition where theeosinophilic host responses occurred inpresence of fungi within the nose andparanasal sinuses and produces slowaccumulation of allergic fungal mucin in thesinus cavity. As its quantity increase, theinvolved paranasal sinus had manifestationsof nasal polyps, expansile mucocele formationwhich produced bony remodeling anddecalcification occurred, causing the diseaseto mimic invasion into adjacent anatomicspaces. This destruction often gives rise toexophthalmos, facial dysmorphia or intracranialextension without tissue invasion. 2 AFSresponses to surgery therapy are very goodeventually replaced by recurrence in theabsence of ongoing therapy. 7Non-invasive Aspergillosis of the sinusescausing proptosis of the eye with bony erosionin immunocompetent person has been welldocumented 3 in western countries. But itsincidence is rare in the eastern part of ourcountry as per available literature.The fungal disease has been described at CTJMS * Vol 22* No. 1 * January, 2008 41

CASE REPORTas a rim of soft tissue attenuation of variablethickness along the bone walls of theparanasal sinuses and these findings haveproved indistinguishable from those of bacterialinfection or neoplastic disease. 4Initially we suspected the patient to be sufferingfrom carcinoma of maxilla with extension in theleft orbit. But the two episodeshistopathological examination of excised ofpolypoid tissue showed inflammatory polyp anddid not suggest any fungal disease.Aspergillosis of sinuses arises as a secondarydisease, superimposed upon a chronic sinusitisas described by Stammberger. 6 In our patientalso he was having caries teeth for 2 yearsand had started having symptoms after theteeth extraction. It indicates that thesuperimposed infection had occurred throughroot of the teeth. Patient was immunocompetentbecause he was not suffering fromchronic diseases but the patient's generalcondition was poor because he was not eatingproperly and avoiding proteineous food dueto fear from protein allergy. We supplementedwith parental infusions and vitamins to buildhim up.The patient was diagnosed to be a case ofallergic fungal rhinosinusitis because of thepresence of polyp, peanut butter and axlegrease looking necrotic tissue in the largemaxillary cavity, the CT scan finding, thehyphae at KOH preparation and the growth ofAspergillus fumigatus on culture which fulfilledthe criteria's given by Bent and Kuhn too. 5The AFS management depends on completeremoval of all fungal mucin by surgery andprevention of recurrence through eitherimmunomudalation (immunotherapy orcorticosteroids) or fungistatic antimicrobials. 7In our case we removed the allergic fungalmucin i.e peanut butter and axle grease lookingnecrotic tissue from left maxillary sinus,pterygopalatine fossa and polypoid tissue fromthe nose endoscopically.We treated the patient with amphotericin-B asit is said to be the drug of choice when there isdocumented bony invasion. 6 A course ofprednisolone with initial dose of 40mg daily individed dose and tapered off over a period of30 days was given for immunomodalation.Patient became completely symptom free andwas discharged with advice for follow up atmonthly interval because the disease is veryprone to recur.Acknowledgement:The authors are thankful to the Director, RIMS,Imphal for allowing us to publish this case report.We also express our gratitude and love to thepatient who have voluntarily agreed to take hisphotograph for the publication of this paper in thejournal.References1. Safirstein B. Allergic bronchopulmonaryaspergillosis with obstruction of the upperrespiratory tract. Chest 1976; 70:788-790.2. Marple B F. Allergic fungal rhinosinusitis: Currenttheories and management strategies.Laryngoscope.2001; 111:1006-1019.3. Manning S C, Markel M, Kriesel K, Vuitch F,Marple B. Computed tomography and magneticresonance diagnosis of allergic fungalsinusitis. Laryngoscope.1997; 107:170-176.4. Zinreich S J, Kennedy D W, Jan M, Curtin HD, Epstein J I, Leslie C. Huff et al. Fungalsinusitis: Diagnosis with CT and MR imaging.42Head and Neck radiology. 1988; 169:439-444.5. Bent J, Kuhn F. Diagnosis of allergic fungalsinusitis. Otolaryngol Head Neck Surg.1994;111:580-588.6. Stammberger H. Functional endoscopicsinus surgery. Philadelphia: B.C. Decker,1990. p. 398-427.7. Bradley FM, Richard LM. Allergic fungal sinusitisin: John H. Krouse, Stephen J.Chadwich, Bruce R.Gordon, M. JenniferDerebery editors. Allergy and Immunology anotolaryngologic approach. Philadelphia:Lippincott Williams & Wilkins; 2002.p.232-248.JMS * Vol 22 * No. 1 * January, 2008

CASE REPORTManagement of post burn neck contracture: a case report1Kh. Maniram Singh, 2 Sanjib Singh Nepram, 1 S. Sarat Singh, 1 L. Deban Singh, 3 N. Ratan Singh,4Gojendra RajkumarA 36 year old lady presented with the historyof burns (burst of kerosene stove) leading tocontractures of face, neck, chest and upperarm. The burns were 5 months old. Primarymanagement was done by the surgical teamin the ward and the patient was later referredfor release of neck contracture and harvestingof split skin graft(SSG).Fig 1. Preoperative photographshowing scar over theanterior aspect of neck.Fig 2. Preoperative photographshowing post burnneck contracture.On examination, her vital signs were stableand systemic examination was un-remarkable.All the investigations were within normallimits. The contractures involved mainly theface, neck and chest and there was a fixedflexion deformity of the neck (chinapproximated to sternum) (Fig 1). The anterioraspect of the neck was not visible. The angleof the mouths were moderately cicatrized andmouth opening was reduced (Fig 2).She was scheduled for release of contractures1. Associate Professor; 3. Senior Registrar; 4. AssistantProfessor, Department of Anaesthesiology, 2.AssistantProfessor, Department of Plastic surgery, RegionalInstitute of Medical Sciences (RIMS), Imphal, Manipur.Corresponding author:Dr. Kh. Maniram. Singh, Department of Anaesthesiology,RIMS, Imphal, 795004, Manipur.of neck and SSG under general anaesthesiawith controlled ventilation but directlaryngoscopy and surgical access to airwayseemed impossible. So the release of the neckcontracture was planned under ketamine untilairway was secured.Patient was pre-oxygenated with 100% oxygenFig 3. Post release of contractureshowing adequateneck extension.for 5 min. Glycopyrrolate0.2mg IV andmidazolam 3mg IVwere given prior toinduction. Induction ofanaesthesia was donewith ketamine hydrochloride100mg IV andthe surgeon wasinformed to release the neck contracture untiladequate neck extension was achieved(Fig 3). Following release of the contracture,endotracheal intubation was facilitated withatracurium in the first attempt. Anaesthesiawas maintained with nitrous oxide, oxygen,non-depolarizing muscle relaxant, systemicanalgesic and isoflurane using Bain’s circuit,and skin harvesting could be continued withoutany complications.DiscussionSevere post burn neck contractures representa challenge to the anaesthesiologist. The usualtechnique of general anaesthesia byintravenous induction and muscle relaxantswould have been disastrous if the airway wasnot secured.Laryngeal mask airway (LMA), Fibre-opticJMS * Vol 22* No. 1 * January, 2008 43

CASE REPORTlaryngoscope, local tumescent anaesthesiaand ketamine are few options in securing theairway in such conditions. 1,2,3,4 However,inhalational induction technique, intubatingLMA, a trachlite, retrograde approach andcombitube may be useful. Tracheostomy andcricothyrotomy can be a lifesaving method ofairway preservation.Fibre-optic laryngoscope and laryngeal maskare expensive and may not be available inmost places like ours. 5 Pawan Agarwal, hasconducted thirty cases of post burn neckcontractures under tumescent localanaesthesia supplemented with intermittentdose of intravenous ketamine withoutendotracheal intubation. 3 But in our case, weused ketamine to release neck contracturethough chance of apnoea may occasionallyoccur and other procedures for skin harvestingare conducted under controlled ventilation tosecure the airway, which is almost similar withthe study of Jandova J and his coworkers 6 .Inhalational anaesthesia and nasotrachealintubation with or without non-depolarizingmuscle relaxants 7 were not favourable in suchconditions because of risk of epistaxis andbronchospasm. Succinylcholine was not usedas the potential for exccessive potassiumrelease after burn could still occur for anindefinite period upto 6 months or longer 8 .Rocuronium could be an alternative choice butwe chose atracurium instead. Again retrogradeintubation is not possible because of presenceof massive scar in the anterior aspect of neck.ConclusionIt is concluded that release of post burn neckcontractures under ketamine is a safe, simpleand effective method and can be used as aroutine practice.References1. Nath G, Major V. The laryngeal mask in themanagement of a difficult airway. Anaesth IntenCare1992;4:518-519.2. Divatia JV, Upadhye SM, Sareen R. Fibre-opticintubation in cicatrical membranes of pharynx.Anaesthesia 1992;47:486-489.3. Agarwal P. Safe method for release of severepost burn neck contracture under tumescentlocal anaesthesia and ketamine. Indian JPlastic Surg 2004;37(1):51-54.4. White PF, Way WL, Trevor AJ. Ketamine itspharmacology and therapeutic uses.Anaesthesiology 1982;56:119.5. Afilato M, Guttman A, Stern E, Lloyd J,Colacone TA, Tselios C. Fibre-optic intubationin the emergency department. A case series.J Emerg Med 1993;11:387-391.6. Jandova J, Kallnigova R, Kapoungova Z, BrozL. Combined technique of anaesthesia in earlyand late neck reconstruction. Acta Chir Plast.1997;39(2):56-59.7. Layon AJ, Vetter TR, Hannaph, et al.Anaesthetic technique to fabricate a pressuremask for controlling scar formation from facialburns. J Burn care Rehabil. 1991; 12:349.8. John DA, Tobey RE, Homer LD, et al. Onset ofsuccinylcholine-induced hyperkalemiafollowing denervation. Anesthesiology1976;45:294-299.44JMS * Vol 22 * No. 1 * January, 2008

CASE REPORTNon-immune hydrops foetalis: a case report1Y.Ajitkumar Singh, 2 L.Ranjit Singh, 3 M.Rameshwar Singh, 2 Kh. Ibeyaima Devi, 1 L.Bimolchandra SinghMrs. SD G 2P 1+0(second gravida, primipara),30 years old with 24 weeks and 2 dayspregnancy attended antenatal clinic ofObstetrics and Gynaecology department,Regional Institute of Medical Sciences, Imphalfor the first time on 15 th March 2006. She wasfrom a rural area belonging to a middle levelsocio-economic group. Her last child birth was1 year and 5 months ago. Her last menstrualperiod (LMP) was on 26 th September 2005.Previous medical, surgical and obstetricalhistory was unremarkable and there was nohistory of blood transfusion. There was nohistory of any congenital malformation in thefamily.On examination, her blood pressure (BP),temperature and pulse rate were within normallimits. Cardiovascular system (CVS), centralnervous system (CNS) and chest were normal.Per abdominal examination revealed a 30weeks size gravid uterus with an oblique liewith non audible foetal heart sound (FHS). Onper vaginal examination, cervix was dilatedjust allowing the tip of a finger and uneffaced,vertex was at -2 station.On investigations, routine laboratory testswere within normal limits. She shared thesame blood group and Rh typing as herhusband i.e. O Rh positive. Transabdominalsonography (TAS) revealed-1.Registrar; 2.Associate Professor; 3.AssistantProfessor, Department of Obstetrics and Gynaecology,Regional Institute of Medical Sciences (RIMS), Imphal.Corresponding Author :Dr. Y. Ajitkumar Singh, Deptt. of Obs. & Gynae., RIMS,Imphal - 4.u A large cystic lesion measuring about8.43cm X 10 cm in the neck region of thefoetus with septation and echo free pattern(Fig 1).u Generalized subcutaneous oedema withincreased skin thickness all over the body,limbs and scalp were also observed.u Bilateral pleural effusion and ascitis werealso seen (Fig 2).u Foetal parameters: BPD (Biparietaldiameter)-19 Weeks 4 Days HC (Headcircumference) -19 Weeks 4 DaysFL (Foetal length) - 18 Weeks 4 DaysFHR (Foetal heart rate) - 146 beats per minuteu Doppler indices of the umbilical arterysuggested increased placentalimpedence.Supportive treatments were given and shedelivered a female baby weighing 2.5 Kg. atFig 1. TAS showing cysticlesion in the neck region offoetus.Fig 2. TAS showing pleuraleffusion and ascites of thefoetus.3.54 pm on 16 th March 2006 with an Apgarscore of 0/10 following induction with 0.5 mgPGE2 (Dinoprostone) gel instillation. Babywas markedly deformed (Fig 3) with multiplebirth defects viz. cystic hygroma, anasarca,pericardial effusion, pleural effusion andincreased skin thickness. Placenta weighedJMS * Vol 22* No. 1 * January, 2008 45

CASE REPORTFig 3. Photograph showingnon-immune hydrosfoetalis with placenta.700 grams, lookedoedematous andhypertrophied. Shewas discharged onthe following day.DiscussionNon immune hydropsfoetalis (NIHF) is anuncommon entity, it isobserved in 1 in2000 to 3500 live births. 1 Variouschromosomal, foetal structural abnormalitiesand infections are the main causes of foetalhydrops. 2 In our case foetus has cystic hygroma.Cystic hygroma was the most common structuralfoetal malformation in the series of Rose et al. 3An increase of the nuchal translucencythickness is probably the first stage of foetalhydrops. Depending on the severity of theunderlying defect, the next manifestation isgeneralized skin oedema with eventualplacental oedema, ascitis and pleuraleffusion. 4 Similar ultrasound findings wereobserved in our case.NIHF has become more common than immunehydrops foetalis. Mortality was of 81% andcomplications more frequent. 5 So considerableemphasis must be placed on early antenataldiagnosis to achieve a precocious treatmentand to improve the present poor prognosis.Rose et al 3 diagnosed NIHF prenatally at 17.3weeks. Unfortunately our case was diagnosedat the beginning of the third trimester becauseof late reporting by the patient. Serum humanchorionic gonadotropin (hCG) is elevated inNIHF at second trimester but wasunremarkable when NIHF presented later. 6Prenatal pericardial and pleural effusion orcongenital anomalies carry a very poorprognosis in patients with NIHF. 7 Maeda et al 8observed that albumin and/or packed red cellinjection into foetal abdominal cavity was aneffective procedure for in utero treatment ofNIHF without pleural effusion, but none couldbe recovered in utero when it was associatedwith pleural effusion. In our case, we could notsave the foetus.Since non-immune hydrops becomesproportionately more common, radiologistsshould be aware that the diagnosis of ‘hydropsfoetalis’ is not synonymous with‘erythroblastosis’. 9References1. Yanez Maldonado E, San Martin Herrasti JM,Garcia Alousa A, Izquierdo Puente JC. Nonimmunologichydrops. Report of 2 cases,Ginecol obstet Mex. July 2000; 68:282-5.2. Heinonen S, Ryynanen M, Kirkinen P. Etiologyand outcome of second trimester nonimmunologicfoetal hydrops. Acta ObstetGynecol Scand. Jan 2000;79(1):15-8.3. Rose CH, Bofill JA, Le M, Martin RW. Nonimmunehydrops foetalis: prenatal diagnosisand perinatal outcomes. J Miss State MedAssoc. April 2005; 46(4):99-102.4. Jauniaux E. Diagnosis and management ofearly non-immune hydrops foetalis. PrenatDiagn. Dec 1997; 17(13):1261-8.5. Cervantes Pardo A, Castillo Diaz LM, GarciaMoreno M, Martinez Villalta E, Torres TortosaP, Borrajo Guadarrama E. Non-immunehydrops foetalis. Review of 11 cases. An EspPediatr. Jan 1988; 28(1):43-7.6. Saller DN Jr, Canick JA, Oyer CE. Thedetection of non-immune hydrops throughsecond-trimester maternal serum screening.Prenat Diagn. May 1996; 16(5):431-5.7. Rejjal AR, Rahbeeni Z, al-Zahrani AF.Prognostic factors and prenatal managementin non-immune hydrops foetalis are still adilemma. J Perinat Med.1997; 25(4):388.8. Maeda H, Koyanagi T, Nakano H .Intrauterinetreatment on non-immune hydrops foetalis,Early Hum Dev. Jun-July 1992;29(1-3):241-9.9. Houstan CS, Ninan A, Best TB.Radiology ofnon-immune hydrops foetalis, J. Can Assocradiol. Jun 1982; 33(2): 107-9.46JMS * Vol 22 * No. 1 * January, 2008

CASE REPORTLeri-Weill Dyschondrosteosis: a case report1S. Subhaschandra singh, 2 W. Jatishwor, 3 S. RanjanA 50 years old female presented with pain,deformity and limitation of movement of thewrist joints since her young adolescent age.She was short stature and married with threechildren. Two of the children, a son and adaughter were short stature. She was ofnormal intelligence. X-ray of both wrists withthe forearms revealed the following findings(Fig 1 a & b) –1. Relatively long ulna compared to radius.2. Triangular shaped distal radius epiphysis.3. Decreased carpal angle.4. Wedging of the carpal bones between thedeformed radius and protruding ulna.5. Increased width between distal radius andulna.6. Normal metacarpals and phalanges.X-ray of both legs revealed short tibias andfibulas with relatively longer fibulas, i.e.tibio-fibular disproportion (Fig 2).These are characteristics of “MadelungDeformity” . Short stature, normal intelligence,bilateral symmetrically involvement and childrenwith dwarfism favored the possibility ofLeri-Weill dyschondrosteosis. Mesomelicdwarfism with the presence of tibio-fibular disproportionand by exclusion of other causesof Madelung deformity, the diagnosis of Leri-1. Registrar; 2. Associate Professor, Department ofRadiodiagnosis, Regional Institute of Medical Sciences(RIMS), Imphal, Manipur, 3. Consultant Radiologist,Babina Diagnostic Centre, Imphal.Corresponding author:S. Subhaschandra singh, MD, Asst. Prof., Dept. ofRadiodiagnosis, RIMS, Imphal, Manipur- 795004.E-mail: drsubhasc@yahoo.co.in.Weill dyschondrosteosis was made. Therewere no biochemical or endocrinalabnormality detected. No genetic work up wasdone on this case.DiscussionLeri- Weill dyschondrosteosis is an automasaldominant disease and a form of mesomelicskeletal dysplasia with Madelung deformity ofthe distal radius and ulna, proximal carpalFig 1. X-ray both wrists AP (a) and Lateral (b) showingfeatures of Madelung Deformitybones and Mesomelicdwarfism 1,2 , being ahallmark. As far asstature is concerned,final height inFig 2. X-ray both legs AP viewshows relatively long fibula.females isapproximately 1.45mand in males 1.55m.There is also greatvariation among patients with identicalmutations belonging to the same family.Females are more frequently affected thanmales and growth failure as well as clinicalfeatures, such as bilateral Madelung deformity,has been described as being more severe infemales than in males. A female to male ratiois about 4 to 1 and female are more severelyaffected 3,4 . SHOX gene (short stature homeboxJMS * Vol 22* No. 1 * January, 2008 47

CASE REPORTcontaining gene) defect that ishaploinsufficiency due to heterozygotemutations the pseudo-autosomal SHOX geneis the main cause of Leri-weilldyschondrosteosis. 3 Characteristic MadelungDeformity is present in 74% of Leri- Weilldyschondrosteosis. 3 The process of shortstature and wrist deformity usuallybegins in adolescence with premature fusionof the medial aspect of the distal radialepiphysis, resulting in asymmetrical growth. 2Binder et al 5 observed that the growth failurein Leri-Weill dyschondrosteosis occurredbefore the age of 6 years, partly alreadybefore birth. Growth velocity after the age ofsix was normal. It was also observed that thedisturbance in growth was not as severe as inTurner syndrome. It was demonstrated thatgrowth failure was observed during the firstyear of life with a mean height loss of 2.16SDS in childhood, whereas pubertal growthwas mildly or not affected. Furthermore, it wasshown that children with a severe degree ofwrist deformity were significantly shorter thanthose with mild deformities. 5A German surgeon, Madelung first describedthe characteristic wrist deformity, i.e. ‘MadelineDeformity’ in 1878 before Leri -Weilldychondrosteosis was described. 2 The causesof this deformity may be - (i) post-traumatic,(ii) extension injuries of the wrist, (iii) MultipleHereditary Exostosis, (iv) Turner Syndrome and(v) Idiopathic. Idiopathic variety is commonlybilateral than unilateral and asymmetrical inseverity. There is symmetry of the bilateralwrists deformity in this index case. No historyof trauma in childhood was present. No exostosiswas seen in the radiographs. The prevalenceof Madelung deformity is higher indyschondrosteosis versus Turner Syndromepopulation. 3 The metacarpal bones werenormal in the index case, and the fourthmetacarpal bone may be short in TurnerSyndrome. In Leri-Weill dyschondrosteosis,there is typical Madelung deformity withlimitation of motion at wrist and elbow andmesomelic dwarfism. Additional findings thatmay be seen in dyschondrosteosis aredeformed tibial metaphysis, flattening ofmedial epiphysis. Skull and axial skeletal ischaracteristically normal. 2 The patients tallerthan 25 th percentile for height probably do nothave dyschondrosteosis. 6 There is reportedassociation of Leri-Weill Dyschondrosteosiswith middle ear deformity and conductivehearing loss. 7 Tibio-fibular disproportion withtibia varum and long fibula are seen in 50% ofthe cases. 8 There may be fusion of the C1and C2 vertebrae. Increased predisposition ofHodgkin’s in patients with dyschondrosteosishas been reported. 4 There are therapeutictrials using recombinant growth hormone withvariable results depending on the time ofinitiation of treatment. 5References1. Langer Jr L O. Dyschondrosteosis, a heritablebone dysplasia with characteristicroengentnographic features. Am. J. Roentgen1965; 95:178-188.2. Greenfeild GB. Radiology of Bone Diseases,Fourth Edn. Philadelphia: J.B Loppincott Company;1986.p. 275 -276.3. Ross JL, Bellus G;Scott CI, Aboudi Jr J;Griegelioniene G, Zin AR. Mesomelic andrhizomelic short stature: the phenotype of combinedLeri- Weill dyschondrosteosis andachondroplasia or hypochondroplasia. Am. J.Med. Gent 2003; 116A:61-65.4. Gokhale DA, Evans DG, Growther D, Woll P.;Watson CJ, Dearden SP, et al. Moleculargenetic analysis of a family with history ofHodgkin’s disease and Dyschondrosteosis.Leukemia1995; 9: 826-833.5. Binder G, Renz A, Martinez A, et al. J. ClinEndocrinology &metabolism 2004; 89(9): 4403-4408.6. Felman AH, Kirkpatrick JA, Jr Madelung.Deformity: observation in 17 patients. Radiology1969; 93:1037-1042.7. Nassif R, Harboyan G. Madelung Deformitywith conductive hearing loss. Arch. Otolaryng.1970; 91:175-178.8. Dawe C, Wynne-Davies R, Fulford G E.Clinical Variation in Dyschondrosteosis:areport on 13 individuals in 8 families. J. BoneJoint Surg. 1982 ; 64B:377-381.48JMS * Vol 22 * No. 1 * January, 2008

UPDATEPsychiatric disorders in Parkinson’s disease: an update1Th. Bihari Singh, 2 Santa Naorem, 2 N. Biplab Singh, 2 Robinson NingshenParkinson’s Disease (PD) is a neurodegenerativedisorder involving disturbancesin motor control. Over 60% of patients willexperience psychiatric symptoms/disorders inthe course of their illness. This reviewhighlights recent developments inneuropsychiatric disorders in Parkinson’sdisease and progressions in treatment.Anxiety and Parkinson’s diseaseAnxiety disorders have recently beenreviewed 1 and generalized anxiety disorderseems to be he most common and best studiedin PD 2 . A few papers have suggested newrating scales to evaluate anxiety disorders inPD. In some cases, psychological factors suchas depressive symptoms on anxiety contributemore to a low quality of life than motorsymptoms. 3 In PD patients, anxiety is oftenrelated to the off state, that is, more anxietywith less mobility. In many cases there iscomorbidity between anxiety and depressionin patients with PD and anxiety in particular isoften not recognized by the physician. 4Selective serotonin reuptake inhibitor drugs areeffective and generally well tolerated inpatients with PD when treating mixeddepression and anxiety states. 5 Benzodiazepineshould be avoided or only used with great1. Assistant Professor, Department of Psychiatry,2. Assistant Professor, Department of Medicine, RegionalInstitute of Medical Sciences(RIMS), Imphal.Corresponding author:Th. Bihari Singh, Assistant Professor, Department ofPsychiatry, RIMS, Imphal.caution because of detrimental effects onbalance and cognitive functions. 5Depression and Parkinson’s diseasePatients with PD experience affectiveepisodes. This was noticed by JamesParkinson in the original description of thedisease. 6 Recently several new epidemiologicalachievements have been accomplished.Depression in patients with PD has been foundin more than 40% in consecutive series. 7,8 Thiswas also found in Cumming’s Seminal review. 9An interesting approach using logisticregression has investigated if risk factors foridiopathic depression in general are alsomarkers for depression in PD. 10Not only does PD increase the risk fordepression, but also depression is, in fact, arisk factor for PD and may in some cases bethe presenting symptom of PD. 11,12,13 Anincreased incidence of hypothyroidism in PDhas been found and therefore the level ofthyroid –stimulating hormone and free T 4–hormone should be examined in PD patientswith any ‘mood’ symptom. 14 Hypothyroidismshould be treated with thyroid hormonereplacement therapy and this will often in itselfcorrect the mood symptoms. 14 In cases ofpersisting symptoms an antidepressant shouldbe added, since it has recently been shownthat hypothyroidism can act as a risk factor fordepression. An interesting open levelrandomized trial of pramipexol, administeredas an antidepressant in moderately depressedpatients with advanced PD and already on L-dopa treatment, clearly needs replication. 15JMS * Vol 22* No. 1 * January, 2008 49

UPDATEPramipexole was used as an add-on drug andno patients with severe depression wereincluded. In a neuropsychological evaluationof pramipexole, it was suggested that it mayworsen cognitive function in PD patients. 16 ACochrane review that located 42 conductedstudies concluded that only three met thecriteria for meta-analysis. 17 This only illustratesthe need for clinical trials to answer the veryimportant question of how depression shouldbe treated in patients with PD.Psychosis and Parkinson’s diseasePsychosis in patients with PD occurs inapproximately 30%. In PD many cases ofpsychosis are caused by levodopa therapy 18and often in the form of complex visualhallucinations or, in mild cases, illusions. Inmost cases the patients vividly see smallanimals or have an ideation of presence ofpeople in the room. This is the most frustratingexperience both for the patients and spouses.Psychosis is a strong risk factor for nursinghome placement. 19 In younger patientspsychosis is usually drug induced orsecondary to depression. In older patients itshould be remembered that psychosis couldbe the harbinger of dementia. 20PD patients with psychosis should be treatedin a three step approach. First of all it isimportant to identify underlying causes likeurinary infection, stroke or metabolic changesthat should explain a confusional state.Secondly the antiparkinsonian medication,levodova and anticholinergic drugs, should begradually reduced if possible. As a last resort,an antipsychotic drug should be administeredto the patient. The first line of drug treatmentis clozapine in moderate doses (15-50 mg/day).Placebo controlled, double blind trials havedemonstrated its effectiveness in treating thepsychosis in PD patients. The advantages arethat it improves tremor, does not worsen motorfunctions in general, can be administered oncedaily and is safe in low doses. 21,22 Side effectsare sedation, orthostatic hypotension andsialorrhoea. The drawbacks are the risk ofblood dyscrasia and therefore specializedmonitoring of white blood cell count isrequired. 23 Both resperidone and olanzepinehave been reported to increase motordysfunction in patients with PD. 23 The fourth,new generation antipsychotic drug that hasbeen evaluated in drug trials in PD patients isquetiapine. Quetiapine seems to be lesseffective, less potent and less free of motorworsening in patients with PD compared withclozapine. However, quetiapine is easier to use,better tolerated and has a low risk of intolerablemotor worsening. Some authors recommendquetiapine as first-line drug treatment inpatients with psychosis 24 , with clozapine assecond line of treatment. Long follow-up studiesare warranted and clozapine has been betterstudied in this respect. 25Resperidone and olanzapine are recommendedonly if clozapine or quetiapine is not toleratedbecause of the risk of worsening motorfunctioning in PD patients on resperidone orclozapine. 21,25 Other treatment modalities wouldbe ziprasidone, ondansetron and electroconvulsivetherapy/Ziprasidone is the newestatypical antipsychotic drug, but no studies havebeen published about its use in patients withPD. Ondansetron is an antiemetic and aselective 5- HT 3antagonist. Zoldan et al 26reported ondansetron improved psychoticsymptoms in patients with PD, but this needsreplication. Electroconvulsive therapy shouldonly be considered when several drugtherapies have been unsuccessful.ConclusionIn conclusion, many psychiatric complicationsin patients with PD need to be assessed byclinicians to decide the right evaluationprogramme. Several recently developedtreatments are available, but some need furtherevaluation and replication of interestingfindings.References1. Stasrkstein SE, Merallo M. Psychiatric andCognitive disorders in Parkinson’s disease,Cambridge, UK: Cambridge University Press:2002.50JMS * Vol 22 * No. 1 * January, 2008

UPDATE2. Shiba M, Bower JH, Maraganore DM, et al.Anxiety disorders and depressive disorderspreceding Parkinson’s disease: A case ControStudy. Mov Disord 2000; 15: 669 – 677.3. Scharg A, Jahanshahi M, Quinn N. Whatcontributes to quality of life in patients withParkinson’s disease? J. Neurol NeurosurgPsychiatry 2000; 69: 308 – 312.4. Shulman LM, Taback RL, Rabinstein AA,Weiner WJ. Non-recognition of depression andother non-motor symptoms in Parkinson’sdisease. Parkinsonism Relat Disord 2002; 8:193-197.5. Rabinstein AA, Shulman LM. Management ofbehavioral and psychiatric problems inParkinson’s disease. Parkinsoniasm RelatDisord 2000; 7: 41-50.6. Victor M, Ropper A H. Adams and Victor’sprinciples of neurology, 7th ed. NewYork:McGraw-Hill Medical Publishing division;2001. p. 1128.7. Anguenot A, Loll PY, Neall JP, et al. Depressionand Parkinson’s disease: Study of a series of135 Parkinson’s patients (in French). Can JNeurol Sci. 2002; 29: 139 – 146.8. Brandstadter D, Oertel WH. Depression inParkinson’s disease. Adv Neurol 2003; 91: 371– 381.9. Cummings JL. Depression and Parkinson’sdisease: A review. Am J Psychiatry 1992; 149:443 – 454.10. Leentjens AF, Lousberg R, Verhey FR. Yarkersfor depression in Parkinson’s disease. ActaPsychiatr Scand 2002; 106: 196 – 201.11. Aansaland D, Cumming’s JL. Depression inParkinson’s disease. Acta Psychiatr Scand2002; 106: 161 – 162.12. Okun MS, Watts RL. Depression associatedwith Parkinson’s disease: Clinical features andtreatment. Neurology 2002; 58: S63 – S70.13. Nilsson FM, Kessing LV, Bolwig TG. Increasedrisk of developing Parkinson’s disease forpatients with major affective disorder: a registerstudy. Acta Psychiatr Scand 2001; 104: 380 –386.14. Schuurman AG, Van den Akker M, EnsinckKt, et al. Increased risk of Parkinson’s diseaseafter depression: a retrospective Cohort study.Neurology 2002; 58: 1501 – 1504.15. Rektorova I, Rektor I, Bares M, et al. Pramipexoland pergolide in the treatment of depressionin Parkinson’s disease : a national multicentreProspective randomized study. Eur J Neuro2003; 10: 399 – 406.16. Brusa L, Bassi A, Stefani A, et al. Pramipexolein comparison to L-dopa: a neuropsychologicalstudy. J Neural Transm 2003; 110: 373-380.17. Chung TH, Deane KH, Ghazi – Noori S, et al.Systematic review of antidepressant therapiesin Parkinson’s disease. Parkinsonism RelatDisord 2003; 10: 59 – 65.18. Factor SA, Molho ES, Podskalny GD, BrownD. Parkinson’s disease: drug inducedpsychiatric states. Adv Neurol 1995; 65: 115 –138.19. Aarsland D, Larsen JP, Janberg E. Predictorsof nursing home placement in Parkinson’sdisease: a paoplation-based, prospective study.Ja Am Geriatr Soe 2000; 48: 938 – 942.20. Lenox BR, Lennox GG. Mind and movement :the neuropsychiatry of movement disorders. JNeuro Neurosurg Psychiatry 2002; 72 (Suppl1): 128 – 131.21. Freidman JH, Fernandez HH. Atypicalantipsychotics in the treatment of drug inducedpsychosis in Parkinson’s disease. Mov Disord2000; 15: 201 – 211.22. Freidman JH, Fernandez HH. Atypicalantipsychotics in Parkinson’s Sensitivepopulations. J. Geriate Psychiatry Neurol 2000;15: 156 – 170.23. Fernander HH, Trieschmann ME, FriedmanJH. Treatment of Psychosis in Parkinson’sdisease: Safety consideration . Drug saf 2003;26: 643 – 659.24. Fernander HH, Trieschmann ME, Burke MA,et al. Long-term outcome of quetiapine use forpsychosis among Parkinsonian’s patients. MovDisord 2003; 18: 510 – 514.25. Klein C, Gordon J, Pollak L, Rabey JM.Clozapine in Parkinson’s disease psychosis:5 year follow-up review. Clin Neuropharmacol2003; 26: 8 – 11.26. Zoldan J, Friedberg G, Livneh M, Melamod E.Psychosis in advanced Parkinson’s disease:treatment with ondansetron, a 5HT 3receptorantagonist. Neurology 1995; 45: 1305 – 1308.JMS * Vol 22* No. 1 * January, 2008 51

1. GeneralJournal of Medical Society, is published from theRegional Institute of Medical Sciences, Lamphelpat,Imphal -795 004, India. It is published three timesa year. The articles are accepted only on thecondition that they are solely contributed to thisjournal. The Editorial Board has the right to revisethe article and make changes (inhouse style) ormay ask the author to rewrite. Papers presented inthe various scientific meetings of the Society shallbe given preference.2. ScopeThe Journal of Medical Society accepts, in English,Review articles, Original research articles, Shortcommunications, Case reports, Earlycommunications and Letters to the Editor, Articlesof general interest on methods in medicine, medicaleducation and update on therapeutics are alsowelcome.Review articles and Educational forum: Reviewarticles are written by the researchers of aconsiderable experience in the field concerned.The author should review the recent trend or theadvances in that field. The major portion of abovearticles should deal with the up to date developmentsin the field in the last 3-5 years.Full length research articles and shortcommunications: Original work will be consideredunder these sections depending on the volume andquality of work.Case Reports: It should be divided into casehistory and discussion with maximum of 6references only. Illustrations/photographs and tableswhen included should be limited to two each.Early communication: A manuscript will beaccepted for Early communication if it meritspublication. The decision of acceptance orotherwise will be communicated within four weeksof receipt of the manuscript and accepted articleswill be published in the following issue.Letters to the editor: Comment(s) on previouslyarticles, items of current interest and brief originalcommunications will be published.52INSTRUCTIONS TOAUTHORS3. Editorial policyManuscripts for publication will be considered ontheir individual merits. All manuscripts will besubjected to peer review. Normally all manuscriptswill be sent to all least two reviewers and theircomments along with the editorial board’s decisionwill be forewarded to the contributor for furtheraction. The author may suggest more than 5referees working in the same area for evaluatingthe manuscript. However, the JMS reserves theright to choose referees.The Journal of Medical Society will insist on ethicalpractices in both human and animalexperimentation. When investigations on humansubjects are reported, evidence for approval by alocal Ethics Committee mustbe given. The journal will not consider any paperwhich is ethically unacceptable.The quotations, tables or illustrations published inother journals, books etc. should not be reproducedwithout the permission of the publisher or theoriginal author. These materials must beaccompanied by the written permission from thecopyright owners.Any article accepted for publication/published inthe Journal of Medical Society will be the copyrightof the journal.4. Submission of the manuscripta) Three copies of the manuscript should besubmitted neatly typed or printed doublespaced on a A4 size paper only on one side.b) Manuscripts may also be submitted on a 31/2" PC diskette. The text files have to be inMS-Word or Adobe PageMaker format. Thefigures included as separate files and shouldbe created using standard softwares. A hardcopy (paper copy) of the manuscript mustaccompany the diskette, which must be clearlylabeled. The label must contain the title of themanuscript and the corresponding author’sname and his affiliations, and address.In case of any discrepancy between paperand disk versions of manuscript, the paperversion will be considered for publication.c) Final accepted version of .the manuscript mustbe submitted on a diskette.d) The manuscript must be submitted with astatement, signed by all authors, regarding theoriginally, authorship and copyright transfer.e) Mailing Address: Three copies of the Articleshould be sent to the Editor, Journal of MediJMS * Vol 22 * No. 1 * January, 2008

cal Society, RIMS, Lamphelpat, Imphal -795004, Manipur India. Fax No. (0385) 310625,E-mail:jms@rims.com5. Preparation of the manuscriptAuthors should keep their manuscripts short.Manuscripts should be typed doubled spaced onone side of good quality A 4 size paper. The fontsize should be less than11 point. Page should benumbered beginning with the title page.The language of manuscript must be simple andexplicit.5.1. Full length of original articlesIt should be arranged into following sections :a) Title page, b) Summary and Key words, c)Introduction, d) Material and Methods, e) Results,f) Discussion, g) Conclusion, i) References, j)Tables and k) Figures.A word count is mandatory and should not exceed3200.5.1.1Title page: It should be paginated as page 1 of thepaper. It should carry title, the author’s names andtheir affiliations, running title, address forcorrespondence including e-mail address and alsothe list of number of pages, number of figures andnumber of tables.Title: Must not exceed 150 characters and shouldbe informative and specific.Authors and affiliations: The names of authors andtheir appropriate addresses should be given.Authorship should be clearly defined. Authors arerequired to submit a statement of the contributionsmade by each author.Running title: A short running title of not more than$0 characters should be given. .Address for correspondence: The correspondingauthor’s address should be given in the title page.The details of fax number and e-mail address shouldbe provided.5.1.2. Summary and key wordsSummary: It must start on a new page carrying thefollowing information: a) Title (without authors’names or affiliation), b) Summary, c) Key words,d) Running title. It should not exceed 250 words.The summary must be concise and clear,informative rather than indicative. New andimportant aspects must be emphasized.The summary must be in a structured formconsisting of AIMS, METHODS, RESULTS,CONCLUSION briefly explaining what was intended,done, observed and concluded. Authors shouldstate the main conclusions clearly and not in vaguestatements. The conclusions and recommendationsnot found in the text of the article should not begiven in the summary.Key words: Provide 3-5 key words which will helpreaders or indexing agencies in cross indexing thestudy. Use terms from the latest Medical SubjectHeadings (MeSH) list of Index Medicus. A moregeneral term may be used if a suitable MeSH termis not available.5.1.3 Introduction -It should start on a new page. Essentially this sectionmust introduce the subject and briefly say how theidea for research originated. Give a concisebackground of the Study. Do not review the literatureextensively but provide the most recent work thathas a direct bearing on the subject. Justificationfor research aims and objectives must be clear!ymentioned without any ambiguity. The purpose ofthe study should be stated at the end.5.1.4 Materials and MethodsThe section should deal with the materials usedand the methodology -how the work was carriedout. The procedure adopted should be describedin sufficient detail to allow the experiment to beinterpreted and repeated by readers, if necessary.The number of subjects, the number of groupsstudied, the study design, sources of drugs withdosage regimen or instruments used, statisticalmethods and ethical .aspects must be mentioned under the section. Themethodology -the data collection procedure -mustbe described in detail. If the procedure is acommonly used one, then giving a reference(previously published) would suffice. If a methodis not well known (though previously published) itis better to describe it briefly. Give explicitdescriptions of modifications or new methods sothat the readers can judge their accuracy,reproducibility and reliability.The nomenclature, the source of materials andequipment used, with details of the manufacturersin parentheses, should be clearly mentioned. Drugsand chemicals should be precisely identified usingtheir non-proprietary names or generic names. IfJMS * Vol 22* No. 1 * January, 2008 53

necessary, the proprietary or commercial namemay be inserted once in parentheses. The firstletter of the drug name should be in small cap {e.g.nifedipine, propranolol) but capitalized forproprietary names {e.g. Depin, Inderal). New oruncommon drug should be identified by thechemical name and structural formula.The doses of drugs should be given as unit weightper body weight e.g. mg/kg and concentrationsshould be given in terms of molarity e.g. nmol ormmol.Statistical methods: The details of statistical testsused and the level of significance should be stated.If more than one tests are used it is important toindicate which groups and parameters have beensubjected to which tests.5.1.5 ResultsThe results should be stated concisely withoutcomments. It should be presented in logicalsequence in the text with appropriate reference totables and figures. The data given in tables or figuresshould not be presented in both tabular and graphicform. Simple data may be given in the test itselfinstead of figures or tables. Avoid discussions andconclusions in the result section.5.1.6 DiscussionThis section should deal with the interpretation ofresults, rather than recapitulation of them. It isimportant to discuss the new and significantobservations in the light of previous work. Discussalso the weakness or pitfalls in the study. Newhypotheses or recommendations can be putforth.5.1.7 ConclusionAvoid unqualified statements and conclusions notcompletely supported by the data. Conclusion mustbe drawn considering the strengths and weaknessof the study. They must be conveyed in the lastparagraph under d[-scussion section. Make sureconclusions drawn to tally with the objectives statedin introduction.5.1.8 AcknowledgmentsIt should be typed in a new page. Acknowledgeonly persons who have cohtributed to the scientificcontent or provided technical support may bemention.5.1.9 ReferencesIt should begin on anew page. The number ofreferences should normally be restricted to amaximum of 25 for a full paper. Majority of them54should preferably be of articles published in thelast 5 years.Papers that have been submitted and accepted butnot yet published may be included in the list of thereferences with the name of the journal andindicated as “In Press”. A photocopy shouldnormally be submitted with the manuscript.Information from the manuscripts submitted but notyet accepted should not be included.Avoid using abstracts and references. The“unpublished observations” and “personalcommunications” may not be used as referencesbut may be inserted (in parentheses) in the text.The references must be verified by the author(s)against original documents. Contributors shouldsubmit th~ manuscript (including references) inaccordance to the “Uniform Requirement forManuscripts Submitted to Biomedical Journals”,which can be accessed at http:/ /www.icmje.org/index.html or N Engl J Med 1997;366:309-15.5.1.10 TablesEach table must be self-explanatory. It should betyped with double spaced on a separate sheet andnumbered consecutively in Arabic numerals. Tableshould have a proper heading and each stub andcolumn should also have subheadings. The numberof observation, subjects and the units of numericalfigures must be given. It is also important to mentionwhether the given values are mean, median, mean.:t. SD or mean .:t. SEM. All significant results mustbe indicated using asterisks. The approximateposition of the tables should be marked in the text.Do not use internal horizontal or vertical lines.5.1.11 FiguresEach figure must be numbered and a short captionmust be provided. For graphs and flow charts it isnot necessary to submit the photographs. Amanually prepared or computer drawn figure on agood quality paper is acceptable. Raw data forgraphs must be submitted when article is acceptedfor publication. This will enable the Editorial officeto draw the graph on the computer and incorporateit in the text at an appropriate place.For other diagrams (e.g., tissue structure, ECG andinstrument setup etc.), strongly contrasting blackand white photographic print on a glossy paper mustbe submitted.Identify each figure/diagrams on the back with atyped label which shows the number of the figure.The name of the leading author, the title ofmanuscript and the top side of the figure. The approxi-JMS * Vol 22 * No. 1 * January, 2008

mate position of each figure should be marked onthe margin of the text.Three figures per article will be printed free ofcharge. The authors will be charged for additionalfigures. The contributor must bear full cost ofprinting color plates if any.Large/complex tables or figures may be submittedin “Final Print (Camera ready) Format” which willbe scanned and printed as such.5.2 Short communicationsThe format is same as that of full papers but thelength including tit!e and references should notexceed 1600 words plus two figures or tables orone of each. The summary should be less than150 words and the number of references shouldnot exceed 12.5.3. Early communicationsThe manuscript should not be divided into subsections.It may contain up to 1200 words (includinga maximum of 6 references) plus one simple figureor table.5.4. Letters to EditorIt can have a maximum of 800 words (including amaximum of 4 references) plus one simple figureor table. The manuscript should not have subsections.5.5 Review articles and Educational forumIt should contain title page. Summary (need not bein structured form) and key words. The text propershould be written under appropriate sub- headings.The authors are encouraged to use flowcharts,boxes, simple tables and figures for betterpresentation. The total number to text words shouldnot exceed 6400 and the total number of figuresand tables should be less than 10.6. Revised manuscriptThe authors should revise the manuscript.immediately after the receipt of the comments fromJMS. A note mentioning the changes incorporatedin the revised text as per referee’s comments (pointby point) should be sent. The revised manuscripthas to be submitted in duplicate along with theannotated original paper within 2 weeks. If therevised manuscript is received 2 weeks afterdespatch from the Editorial Office, it will beconsidered as anew submission.Calling for revision does not guarantee acceptance.The revised manuscripts that require major revisionare likely to be sent to referees for evaluation. Ifthe authors have substantial reasons that theirmanuscript was rejected unjustifiably, they mayrequest for reconsideration. The correspondencein this regard should be sent in triplicate.7. ProofsProofs will be sent to the corresponding author forfinal checking. It is the author’s responsibility togo through the proof meticulously and correct errorsif any. Correction should be restricted to printer’serror only and no substantial addition/ deletionshould be made.8. ReprintsReprints must be ordered while returning thecorrected page proofs.JMS * Vol 22* No. 1 * January, 2008 55