Percutaneous transluminal coronary angioplasty for postoperative left coronary artery stenosis following surgical reconstruction of congenital atresia of the left main coronary artery.

Congenital atresia of the left main coronary ostium is a rare coronary artery anomaly. A 3-year-old boy who was asymptomatic had a heart murmur because of mitral regurgitation. He underwent reconstruction of the left main coronary artery, but stenosis occurred in the early postoperative period. Although the patient underwent repair of the coronary artery stenosis, the distal portion of the left coronary artery re-stenosed. Percutaneous transluminal coronary angioplasty for the stenosis was performed successfully and there has not been any sign of re-stenosis for 30 months to date.