Long-term survival of the very elderly undergoing aortic valve surgery.

Background: Increasing numbers of the very elderly are undergoing aortic valve procedures. We describe the short- and long-term survivorship for this cohort.

Methods And Results: We conducted a cohort study of 7584 consecutive patients undergoing open aortic valve surgery without (51.

Long-term survival of the very elderly undergoing coronary artery bypass grafting.

Background: Increasing numbers of the very elderly are undergoing coronary artery bypass graft surgery (CABG). Short-term results have been studied, but few data are available concerning long-term outcomes.

Methods: We conducted a cohort study of 54,397 consecutive patients undergoing primary, isolated CABG surgery between July 1, 1987, and June 30, 2006.

Multivariable prediction of in-hospital mortality associated with aortic and mitral valve surgery in Northern New England.

Background: Predicting risk for aortic and mitral valve surgery is important both for informed consent of patients and objective review of surgical outcomes. Development of reliable prediction rules requires large data sets with appropriate risk factors that are available before surgery.

Methods: Data from eight Northern New England Medical Centers in the period January 1991 through December 2001 were analyzed on 8943 heart valve surgery patients aged 30 years and older.

A multicenter comparison of intraaortic balloon pump utilization in isolated coronary artery bypass graft surgery.

Background: Single-center studies suggest substantial variation in intraaortic balloon pump (IABP) utilization. Our purpose is to examine IABP utilization over time and across medical centers.

Methods: This was a prospective cohort of 29,961 consecutive patients undergoing isolated coronary artery bypass graft surgery, between 1995 and 2000, at 10 centers (eight in northern New England and two in Canada).