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Paroxysmal Nocturnal Dyspnea (PND)


Updated April 20, 2011

Definition: Paroxysmal nocturnal dyspnea, or PND, is dyspnea (shortness of breath) that awakens you from sleep. People who have PND will awaken suddenly, gasping for air and needing to sit up. After several minutes, the dyspnea goes away.

PND is very often a sign of significant heart failure, and this symptom should always be evaluated by a physician.

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