Perforalion of the ventricular septum is a rare but serious complication following myocardial infarction. It usually results in progressive intractable congestive heart failure and death; for that reason, it requires aggressive surgical intervention. Since the first report of surgical treatment for this serious complication by Cooley and colleagues, many reports decribed their complications. Here We report a case of postinfarction septal rupture treated by patch repair of the rupture and single coronary bypass graft.