ABSTRACT
MITRAL REGURGITATION The mitral valve is a complicated structure that requires the correct functioning of the valve leaflets, valve commissures, mitral anulus, papillary muscles, chordae tendineae, and left ventricle for competence. Mitral regurgitation results from failure of one or more of the components of normal mitral valve competence. The presentation and management depend on the underlying cause, duration, regurgitant severity, patient symptoms (including objective exercise tolerance), and left ventricular size and systolic function.
