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Paradoxical vocal cord dysfunction (PVCD) is a condition which is similar to asthma in its onset and symptoms, as it presents as breathing difficulties. It is stimulated by exposure to chemicals, exhaust, smoke, exercise, and reflux. Paradoxical vocal cord dysfunction is diagnosed with a challenge test where the patient is subjected to breathing a gas, methacholine, to which asthmatics react, but sufferers of PVCD do not. PVCD is treated by removing the person from the source of irritation and breathing exercises.
Source: summary of medical news story as reported by The Pittsburgh Channel
About: Vocal cord disorder commonly mistaken for asthma
Date: 12 January 2006
Source: The Pittsburgh Channel
Author: Marilyn Brooks
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