Successful repair of coronary artery-coronary sinus fistula with aneurysm in an adult

We report a very rare case of an adult with coronary artery fistula and aneurysm formation. This fistula was successfully closed with direct suture closures by opening the aneurysm under complete cardiopulmonary bypass. The distal terminated orifice of the fistula, which drained to the coronary sinus, was also closed. Finally, aneurysmorrhaphy with overlapping mattress sutures was performed. The postoperative angiographic study demonstrated normal coronary artery distribution, and the patient was asymptomatic without recurrence at 2 years after the operation.