Mitral valve prolapse is one of the most common valvulopathies and, although usually benign, it can predispose to atrial dysrhythmias, bacterial endocarditis with systemic embolization, and sudden death. If these patients have an audible murmur (as opposed to just the click), it implies that there is regurtitant flow and these patients are then generally considered candidates for bacterial endocarditis before procedures which can induce bacteremia. This includes dental extraction!
