For elderly patients with aortic stenosis undergoing nonemergency valve replacement in recent years, the perioperative
mortality rate is reported to be as low as 4 to 5%, and the surgical
mortality rate is 5 to 10%, even if heart failure is present.
The perioperative mortality rate is higher for patients undergoing aortic valve replacement combined with CABG than for those undergoing aortic valve replacement alone (4 to 6% for patients in their mid-70s, 10% for patients in their 80s).