Bulletin européen de physiopathologie respiratoire
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Bull Eur Physiopathol Respir · May 1982
Comparative StudyMucus clearance from the airways in chronic bronchitis--Smokers and ex-smokers.
We have assessed lung clearance of inhaled radioactive particles, predominantly deposited in the smaller bronchi, in 60 tests on patients with chronic bronchitis. When tests were matched for sputum production, clearance in ex-smokers was not significantly faster than in patients still currently smoking. ⋯ Clearance was significantly faster in the patients who coughed frequently and produced high volume of sputum. For some patients with chronic obstructive bronchitis, giving up smoking may lead to poorer mucus clearance because of decreased transport by productive cough.