Preoperative and intraoperative factors associated with long-term survival in octogenarian cardiac surgery patients.

Background: The proportion of octogenarians undergoing cardiac surgery is increasing though few studies have examined the simultaneous impact of preoperative and intraoperative factors on long-term survival in this age group. This study aimed to describe the preoperative clinical and demographic characteristics associated with long-term mortality risk and determine whether intraoperative factors related to surgical and cardiopulmonary bypass techniques impacted upon these.

Methods: Octogenarians undergoing coronary artery bypass grafting (CABG) +/- concomitant valvular procedure between 1992 and 2005 from three institutions were included in this study.