Tags: Disease.
Trepopnea /tre·pop·nea/ (tre″pop-ne´ah) is dyspnea (shortness of breath) that is sensed while lying on one side but not on the other (lateral recumbent position). It results from disease of one lung one major bronchus or chronic congestive heart failure. Patients with trepopnea from lung disease prefer to lie on the opposite side of the diseased lung as the gravitation increases perfusion of the lower lung.