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Obstructive Lung Diseases: Airways 2 |

Impulse Oscillometry Distribution of Airway Resistance Correlates With Severity of Lung Disease

Yewande Odeyemi, MD; Peter Whitesell, MD
Author and Funding Information

Howard University Hospital, Washington, DC


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


Chest. 2016;150(4_S):836A. doi:10.1016/j.chest.2016.08.936
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Extract

SESSION TITLE: Airways 2

SESSION TYPE: Original Investigation Poster

PRESENTED ON: Wednesday, October 26, 2016 at 01:30 PM - 02:30 PM

PURPOSE: Increasing evidence indicates that inflammation of peripheral airways plays an important role in the pathophysiology of obstructive lung disease and may correlate more closely with severity of dyspnea than spirometric parameters. Impulse Oscillometry (IOS) is a well validated and effort-independent tool which allows for distinguishing proximal airway resistance (R20) from total airway resistance (R5). Limited data are available regarding the relative contribution of the small airways to overall resistance in patients with different pathophysiology and severity of disease. We hypothesized that sites of resistance as demonstrated with IOS would vary with different patterns of impairment and severity of disease.

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