[Cardiac tamponade due to ruptured coronary artery aneurysm associated with coronary-pulmonary artery fistula; report of a case].

We report a successful operative treatment of ruptured coronary artery aneurysm associated with coronary-pulmonary artery fistula. A 67-year-old woman was diagnosed with coronary artery fistula previously but observed without any treatment. She had medical examination at a previous hospital because of sudden onset of dyspnea, and transported to our institution with a diagnosis of cardiac tamponade. Multi-detector computed tomography (MDCT) showed massive pericardial effusion, coronary-pulmonary artery fistula and giant coronary artery aneurysm. We performed emergency operation. Under cardiopulmonary bypass, coronary artery fistula and aneurysm was resected. Postoperative MDCT showed almost complete exclusion of coronary artery fistula. Postoperative course was uneventful.