Darío Andrade1, Eric E Vinck2, Jose F Zuluaga3. 1. Department of Cardiovascular Surgery, Fundación Clínica Shaio, Bogotá, Colombia. 2. Department of Cardiovascular Surgery, Clínica Cardio VID, Medellín, Colombia. 3. Department of Cardiology & Echocardiography, Fundación Clínica Shaio, Bogotá, Colombia.