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hyperinflation

Pronunciation: hi'per-in-fla'shun

Definition: Overdistention of airways and alveoli, sometimes leading to emphysema, caused by obstructive lung disease; occurs reversibly with asthma, and can occur locally with aspiration of a foreign body with a subsequent ball-valve phenomenon.

[hyper- + inflation]

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© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.
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