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Tricuspid valve prolapse
- Heart Valve Diseases (National Library of Medicine)... don't work well. Your heart has four valves: the tricuspid, pulmonary, mitral, and aortic valves. The valves have flaps that open and close. ... regurgitation is prolapse, where the flaps of the valve flop or bulge back. Prolapse most often affects the mitral valve. Stenosis happens ...