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nocturnal dyspnea

 

Definition: dyspnea occurring at night, several hours after assuming recumbent position. Occurs in heart failure and results from reabsorption of water from dependent areas after removal of effect of gravity, causing hypervolemia, and aggravating left-ventricular failure.

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