AIM To explore the role of coronary artery bypass grafting in septuagenarians. METHODS Preoperative,operative and postoperative data of 94 patients aged ≥ 70 years and data of 10-year follow-up were statistically analyzed,which compared with that of 192 cases aged < 70 years. RESULTS The mean distal anastomoses was not significant between groups. Intubation time,postoperative stay,morbidity of renal function failure and pulmonary infection were longer in the group≥70 years of age than in the < 70 year-old g...