[Long-term result of aorto-coronary bypass surgery].
Four hundred and nineteen cases of aorto-coronary bypass surgery which were operated at the Juntendo University Hospital for last 8 years were reviewed with respect to operative, hospital and late mortality, and survival. Isolated coronary bypass (371 pts) had 2.7 per cent of operative mortality, 1.9 per cent of hospital mortality, 1.3 per cent of late mortality and 94.1 per cent of survival rate postoperative follow-up ranged up to 8 years (average 3.51 years). Late mortality was 2.6 per cent in the group of left main trunk lesion, 1.3 per cent in the group of patients over 60 years old, 0.7 per cent in single bypass group, 1.2 per cent in double bypass and 6.7 per cent in triple bypass group. Patients complaining of unstable angina showed significantly higher operative, hospital and late mortality compared with patients with stable angina. Cardioplegia for an intraoperative myocardial protection provided better operative result, however, there is no significant difference in late mortality between potassium-induced and potassium-magnesium-induced cardioplegia. Intraoperative myocardial protection using lidocaine, aprotinin and coenzyme Q10 is important to improve surgical results in patients with either left main trunk lesion or age over 60. Successful treatment of 5 patients with evolving or acute myocardial infarction was experienced. These results suggest that aorto-coronary bypass surgery is accepted as a safe and important treatment for ischemic heart disease.
D001026:Coronary Artery Bypass / Q000401:mortality; D003327:Coronary Disease / Q000401:mortality / Q000601:surgery*; D005500:Follow-Up Studies; D006324:Heart Arrest, Induced / Q000379:methods; D006801:Humans