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Obstructive Lung Diseases: COPD |

Influence of Lung Diffusion on Exercise Capacity in Patients With COPD

Mehrdad Behnia, MD; Courtney Wheatley, PhD; Alberto Avolio, PhD; Bruce Johnson, PhD
Author and Funding Information

Macquarie University, Sydney, NSW, Australia


Copyright 2016, American College of Chest Physicians. All Rights Reserved.


Chest. 2016;150(4_S):891A. doi:10.1016/j.chest.2016.08.991
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Extract

SESSION TITLE: COPD

SESSION TYPE: Original Investigation Poster Discussion

PRESENTED ON: Monday, October 24, 2016 at 12:00 PM - 01:30 PM

PURPOSE: Factors contributing to exercise intolerance in patients with COPD remain complex. Lung diffusing capacity for carbon monoxide (DLCO) gives an overall assessment of functional lung surface area for gas exchange and can be assessed by various methods. We were interested if the intra-breath method may give a more sensitive measure of useable gas exchange surface area than the more typical single breath method and if subjects with the largest DLCO relative to pulmonary blood flow (Qc) would have a more preserved exercise capacity.

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