title: Aorta-coronary artery saphenous vein bypass surgery: clinical and angiographic results.
abstract: In a series of 500 consecutive patients undergoing aorta-coronary artery saphenous vein bypass surgery, operative mortality was 2.5% (1% with one-vessel disease, 2% with two-vessel disease, and 3% with three-vessel disease). Transmural myocardial infarction occurred within 30 days after operation in 67 cases (13%) and caused 10 of the 16 deaths in that period. Among 484 patients followed 1 to 58 months (median, 26 months), there have been 20 deaths. Of the 464 survivors, 65% had complete relief of angina, 24% were improved, and 11% were unimproved. In 162 patients who underwent postoperative graft angiography between 1 and 42 months after surgery, a strong positive relationship existed between clinical response and completeness of myocardial revascularization as defined by the presence of a patent graft to all major coronary arteries with greater than 50% stenosis. A similar relationship was found between postoperative multistage treadmill exercise response and completeness of myocardial revascularization. Thus, 82% of patients completely revascularized were asymptomatic at the time of postoperative graft visualization, and 91% had a negative treadmill exercise response.
mesh_terms: D000328:Adult; D000368:Aged; D000787:Angina Pectoris / Q000401:mortality / Q000601:surgery*; D001026:Coronary Artery Bypass; D005080:Exercise Test; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D008910:Minnesota; D009203:Myocardial Infarction / Q000209:etiology; D011183:Postoperative Complications; D011859:Radiography; D012501:Saphenous Vein / Q000000981:diagnostic imaging / Q000637:transplantation*; D013997:Time Factors; D014182:Transplantation, Autologous