The Annals of Thoracic Surgery, Vol 27, 225-229, Copyright © 1979 by The Society of Thoracic Surgeons
Five-year follow-up of patients undergoing coronary artery bypass
M Arnold, S Wathanacharoen, WA Reed, DA Killen, J Crockett, JT King, BD McCallister and H Bell
Two hundred eighty-two patients who underwent coronary artery bypass
operation between January, 1971, and July, 1972, were followed until the
time of death or for 5 years after operation. The angina-free status
progressively decreased during the period of follow-up but at 5 years 57%
of the survivors were free from angina. The total (early and late)
incidence of nonfatal myocardial infarction was 3.3 per 100 patient years
of follow-up. Nine (3.2%) of the patients had a repeat coronary artery
bypass operation within the first 5 postoperative years. The overall 5-year
survival was 86.9%. The expected 5-year survival of the general population,
matched by sex and age, is 90.7%. Five-year survival was 97% for
single-vessel disease, 87% for double- vessel disease, and 85% for
triple-vessel disease.