text: <unk>  is a type of operation in cardiac surgery to reduce enlargement of the heart from cardiomyopathy or ischemic aneurysm formation.
option_0: Ventricular reduction
option_1: Cardiac shunt
option_2: Left-to-right shunt
option_3: Hypoplastic left heart syndrome surgery
option_4: Dextrocardia surgery
option_5: Right-to-left shunt
option_6: Aortopulmonary window
option_7: Diaphragmatic breathing