22.11.2018 Views

Systematic-Review-Drug-Efficiency-Dissertation-Sample-Work-Tutors-India

Idiopathic Pulmonary Fibrosis (IPF) as the name suggests is a progressive disorder with no known aetiology. It is characterised by the thickening of the alveoli due to scarring resulting in cough. It is known to primarily occur in older adults over 60 years of age. The findings of IPF have a known association of Usual Interstitial Pneumonia (UIP) (Raghu et al., 2011; Kawano-Dourado & Kairalla, 2013; Wells, 2013). It has been deemed that the prognosis is generally poor when UIP has been confirmed (King et al., 2001b). The median survival rate of IPF is 50%, typically around two years after diagnosis (Raghu et al., 2011; King et al., 2001b).

Idiopathic Pulmonary Fibrosis (IPF) as the name suggests is a progressive disorder with no known aetiology. It is characterised by the thickening of the alveoli due to scarring resulting in cough. It is known to primarily occur in older adults over 60 years of age. The findings of IPF have a known association of Usual Interstitial Pneumonia (UIP) (Raghu et al., 2011; Kawano-Dourado & Kairalla, 2013; Wells, 2013). It has been deemed that the prognosis is generally poor when UIP has been confirmed (King et al., 2001b). The median survival rate of IPF is 50%, typically around two years after diagnosis (Raghu et al., 2011; King et al., 2001b).

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

Physical findings:<br />

The exhibited IPF related physical examination observations with prognosis are<br />

digital clubbing and BMI. A remarkable related decrease in survival was exhibited by digital<br />

clubbing after assimilation of age and smoking status with an HR of 2.5 that was extremely<br />

notable (King et al., 2001b). This relation although has not been distinctively studied in other<br />

cohorts. An inverse relation is exhibited by BMI with survival, with a median survival of 3.6<br />

years for BMI less than 25, 3.8 years for BMI 25 to 30, and 5.8 years for BMI greater than 30<br />

(Alakhras et al., 2007). Per 1-unit rise in BMI there was an HR of 0.93. The protective<br />

consequence of enhanced BMI cause in IPF is uncertain, but as hypothesized with other<br />

chronic lung diseases, it may be that reduced BMI is a marker of malnutrition and/or<br />

increased activity and basal energy dissipation (Alakhras et al., 2007).<br />

Impact of comorbidities:<br />

Pulmonary hypertension is frequent in IPF and related with lower diffusing capacity<br />

of carbon monoxide (DlCO), desaturation during exercise, shorter walk distances and<br />

enhanced risk of death in patients with IPF (Lettieri et al., 2006a; Hamada et al., 2007; Fell &<br />

Martinez, 2007; Nathan et al., 2007; Nadrous et al., 2005). In an IPF recorded study of<br />

patients for lung transplantation, 32% of patients had pulmonary hypertension by right-sided<br />

heart catheterization (Lettieri et al., 2006a). Pulmonary hypertension persistent patients had<br />

much greater mortality (1-yr mortality of 28% in contrast to 5.5% for patients without<br />

pulmonary hypertension), and the risk of mortality risk linearly associated with mean<br />

pulmonary artery pressure. According to another study on continuous right-sided heart<br />

catheterization in patients with IPF anticipating transplantation approximately all patients<br />

exhibited evolution of pulmonary hypertension subsequent in their path (38.6% at baseline<br />

and 86.4% at transplantation) (Nathan et al., 2008a).<br />

Since there are restricted data substantiating successful particular therapies for<br />

pulmonary hypertension in patients with IPF and right-sided heart catheterization is invasive,<br />

its regular utilization for prognostic evaluation alone is inappropriate, and non-invasive<br />

procedures for screening would be advantageous. Transthoracic echocardiography as a noninvasive<br />

procedure of capturing pulmonary hypertension have been evaluated by various<br />

© 2017-2018 All Rights Reserved, No part of this document should be modified/used without prior consent<br />

<strong>Tutors</strong> <strong>India</strong> - Your trusted mentor since 2001<br />

www.tutorindia.com I UK # +44-1143520021, info@tutorsindia.com<br />

Page 44 of 172

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!