Fifteen-year trends in risk severity and operative mortality in elderly patients undergoing coronary artery bypass graft surgery

Abstract

Background - Trends in risk-severity and operative mortality (OM) were examined in 3330 consecutive patients aged 70 years and older who underwent isolated coronary artery bypass graft surgery (CABG) between 1982 and 1996. Methods and Results - The proportion of elderly patients rose significantly over time (P