“…Ushijima et al [32] analyzed the left ventricular (LV) performance after AVR with the 16-mm ATS mechanical valve, based on the concept of cardiac energetics analysis with echocardiographic examination (Ees, Ea, Ea/Ees, and SW/PVA). They showed that the midterm LV performance after AVR with the 16-mm ATS mechanical valve was satisfactory.…”