[A case report of surgical treatment for coronary aneurysm following repeated PTCA].

A 53-year-old man who developed coronary artery aneurysm following repeated percutaneous transluminal coronary angioplasty (PTCA) was reported. At the first coronary angiography, the severity of coronary stenosis was 95% at areas #6 and #7. The first PTCA provided sufficient coronary dilatation, but 3 months later, PTCA was needed again because of the recurrence of stenosis. This second PTCA provided sufficient dilatation, but the coronary dissection remained. Eight months after the second PTCA, the patient suffered from recurrent angina. The repeated coronary angiography showed 95% stenosis of the original lesion and coronary aneurysm formation (4 mm in diameter) at the area of dissection which developed at the former PTCA site. Therefore, coronary artery bypass surgery with left internal thoracic artery to area #8 was performed.