Surgical treatment of hypertrophic cardiomyopathy.

Hypertrophic cardiomyopathy (HCM) is a unique primary myocardial disease characterized by unexplained left ventricular hypertrophy in absence of another etiology. One of the key features is the presence of systolic anterior motion of the anterior leaflet of the mitral valve which causes left ventricular outflow tract obstruction with various degrees of mitral valve regurgitation. Surgical septal myectomy is the preferred treatment of choice if medical treatment is unsuccessful or intolerable. We summarize in this review the available treatment options for HCM.