Determinants of Left Ventricular Dysfunction After Repair of Chronic Asymptomatic Mitral Regurgitation

Mitral valve repair can be performed with favorable early and late outcomes in patients with asymptomatic severe MR. The presence of minimal LV enlargement and preoperative pulmonary hypertension were associated with postoperative LV dysfunction in this otherwise healthy population. Mitral valve repair may be considered in asymptomatic patients with an indexed LVESD (ILVESD) greater than 19 mm/m2 or preoperative right ventricular systolic pressure greater than 45 mm Hg.