cardiovascular disorders
Mitral Valve Prolapse (MVP)
Key Points
Mitral valve prolapse is most often caused by idiopathic myxomatous degeneration of the mitral valve and chordae tendineae. Mitral regurgitation (MR) is the most common complication. Heart sounds often include a sharp, mid-systolic click that occurs earlier with the Valsalva maneuver. Prognosis is usually benign unless MR develops, in which case there is increased risk of heart failure, atrial fibrillation, stroke, and infective endocarditis. Treatment is not needed unless significant MR develops. 