Sixty-one patients with coronary artery stenosis underwent coronary artery bypass grafting from February 1986 to September 1993 at the department of Thoracic and Cardiovascular Surgery. There were 41 men and 20 women with a mean age of 54
years(range,
25 to 79 years). History of myocardial infarction was noted in 17 patients(28%). Twenty-eight patients(46%) had single-vessel disease, 24 patients(39%) had double-vessel disease and 9 patients(15%) had triple-vessel disease. The left main
diseases
was
in 4 patients (7%). Single aorta-coronary grafts were placed in 37 patients(60%), double or more grafts in 24 patients(40%). An average of 1.4 grafts were performed per patient. Saphenous vein grafts were employed in 49 patients(80%), and the
internal
mammary grafts, which were anastomosed to left anterior descending artery in 23 patients(38%). The mean bypass time was 135 minutes and cross-clamp time was 45 minutes. Early mortality was 16.4% (10 patients). Perioperative myocardial infarction
was the
most common complication, followed by atrial arrhythmia, wound infection, bleeding, pneumonia, pneumothorax. The 51 survivors were followed-up for 1 to 72 months, averaging 31 months. Ninety-five percent of the survivors were in New York Heart
Association class I or II postoperatively. The was one late death. Poor ejection fraction was significantly associated with hospital death(p<0.05).
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