We carried out coronary artery bypass grafting using saphenous vein on 8 patients from May, 1987 through January, 1988 at Hanyang University Hospital in Seoul. There were 4 men and 4 women and the mean age was 58.3 years. Except for 1 patient, they were all diagnosed as unstable angina not responding to medical therapy. The average ejection fraction was 66.9%, and no operative death was found. Two sequential anastomoses were performed in one patient. There was no significant event to influence adversely on postoperative prognosis. During the mean follow up period of 6.3 months, none of the patients experienced new symptoms and all of them remain relatively well off the medications used pre and perioperatively execpt for aspirin and persantin.