[Stanford Type A Acute Aortic Dissection in a Patient with a Single Coronary Artery:Report of a Case]

A single coronary artery is a very rare anomaly and is usually asymptomatic. Here we report a case of a single coronary artery complicated with Stanford type A acute aortic dissection. A 58-year-old male with chest pain was transported to our institution by ambulance. He was diagnosed with a single coronary artery accompanied by acute coronary syndrome. The single coronary artery originated from the left sinus of Valsalva and the right coronary branch coursed between the aorta and the pulmonary artery. It was, therefore considered difficult to perform catheter intervention, and urgent coronary artery bypass surgery was planned. Enhanced computed tomography, however, revealed Stanford type A acute aortic dissection, and aortic root replacement combined with coronary artery bypass grafting was performed by emergency. The postoperative course was uneventful.