Single right coronary artery: clinical and angiographic findings with surgical management.

Sudden death, myocardial infarction, and anginal syndrome have occurred in patients with single right coronary artery even in the absence of occlusive arteriosclerotic disease. We are reporting the case of a patient with this anomaly without concomitant arteriosclerotic involvement who was managed surgically. A 46-year-old woman was seen with disabling angina of 8 months' duration. Coronary arteriography established the diagnosis of a single right coronary artery. An aorta-anterior descending saphenous vein bypass graft was performed, and the patient remains asymptomatic 29 months postoperatively. Single right coronary artery is a rare anomaly, and its recognition as a potentially dangerous lesion is essential for the prompt and proper care of patients.