[Complete occlusion both left main coronary artery and right coronary artery].

A 67-year-old man, who had complete occlusion both of left main coronary artery (LMCA) and right coronary artery (RCA), underwent coronary revascularization. He had been suffering from severe angina pectoris preoperatively. Exercise electrocardiogram (single Master) showed myocardial ischemia. On cardiac catheterization, he showed extensive collaterals from right main coronary artery, and well-preserved left ventricular function. At operation, coronary arteries revealed severe sclerosis, especially in RCA, but there was no evidence of old myocardial infarction. Three saphenous vein grafts were bypassed to LAD, LCX, and RCA. Postoperatively, he remained free of angina pectoris at 6 months after uneventful surgery.