SATS 2009 Final Program - Scandinavian Association for Thoracic ...

P01:18
THYMIC EPITHELIAL TUMORS: HISTOLOGY, STAGING AND THE RESULTS OF SURGICAL REMOVAL
Mariusdottir Elin 1 , Gudbjartsson Tomas 2 , Sigfusson Nikulas 2
1) University of the Iceland, 2) Landspitali University hospital, Iceland
Objective
Most thymic tumors are of epithelial origin with different clinical behavior and prognosis. Our aim was to study
the histological subtype and tumor stage of thymic epithelial tumors in Iceland and evaluate the results of
surgical treatment.
Materials and methods
16 consecutive patients (mean age 61 yrs, 10 males), diagnosed with thymic tumor in Iceland, from 1984 to 2009,
were studied retrospectively. The histological subtype was determined according to the new WHO classification
(A-C) and the Masoka-system used for staging the tumors.
Results
Seven patients had local symptoms (chest pain, cough), seven were diagnosed incidentally and 2 were diagnosed
during a work-up for myasthenia gravis. Benign tumours were 12, and thymic carcinomas four (25%). The histological
subtype was type A (n= 4), type AB (n=2), type B1 (n=1), type B2 (n=5) and type C (n=4), with no B3 tumors.
Majority of the tumors were on stage I (n=4) or II (n=5) but the carcinomas were two on each stage, III and IV.
Twelve of the 16 patients underwent a radical resection of the tumor through a median sternotomy. There were no
major complications and all the patients survived surgery. Overall crude survival for the 16 patients at 5 years was
56%, 75% for thymomas and 0% for thymic carcinoma.
Conclusions
Tumors in the thymus are rare, most of them benign thymomas with excellent prognosis. For thymic carcinomas,
however, the prognosis is poor and these patients usually die within one year from diagnosis.
P01:19
MYOCARDIAL REVASCULARIZATION IN PATIENTS WITH SEVERE LEFT VENTRICULAR
DYSFUNCTION, IS ON PUMP BEATING THE PREFERABLE TECHNIQUE?
Abdel Aal Mohamed 1
1) Riyadh, Saudi Arabia
Objective
This study compares early outcomes after on-pump beating-heart CABG and conventional CABG in patients with
ejection fraction (EF) less than 30%.
Methods
From 2005 to 2008, 167 patients with ejection fraction less than 30% underwent CABG on-pump beating-heart
CABG was done in 75 patients (group 1) and 95 patients were done using conventional technique (group2). Twelve
patients in the conventional CABG group required insertion of intra-aortic balloon pump initiation intra-operatively
or postoperatively, whereas only 2 patients required this in the on-pump beating-heart CABG group.
Results
In-hospital mortality was less in the on-pump beating-heart CABG group (2.25% versus 3.68). Twelve patients in the
conventional CABG group required insertion of intra-aortic balloon pump initiation intra-operatively or postoperatively,
whereas only 2 patients required this in the on-pump beating-heart CABG group.The ventilation time was longer
in conventional group it was 10± 12.3 versus 7.6±11.7. No significant difference was found in morbidity including
stroke, renal failure. The incidence of postoperative atrial fibrillation was significantly less in on pump beating group
as compared to CPB group it was happened in 6 patients versus 21 respectively. The duration of intensive care unit
stay was 2.9 ±1.65 in group 1 while it was 3.7± 1.78 group 2. The hospital stay was also shorter in the on-pump
beating-heart CABG group, it was 6.8± 1.43 versus 8.6 ±2.13 and it was significantly difference.
Conclusions
On-pump beating-heart CABG can be performed safely on high-risk patients.
STOCKHOLM, SWEDEN 75