Papillary Muscle Repositioning in Mitral Valve Replacement in Patients With Left Ventricular Dysfunction

Papillary muscle repositioning may result in more favorable left ventricular remodeling compared with complete retention of the mitral subvalvular apparatus during mitral valve replacement. It confers a significant early and late advantage by causing significant reductions in the left ventricular chamber volume, sphericity index, and systolic performance.