Reduction in coronary artery bypass grafting surgery mortality and morbidity during a 3-year multicenter quality improvement project.

Objective: Risk-adjusted operative mortality is a key quality measure for isolated coronary artery bypass grafting. Through a multicenter quality improvement initiative, we sought to improve this measure at 14 surgical programs within a large and geographically dispersed health care system.

Methods: Observed mortality and combined mortality/morbidity rates for isolated coronary artery bypass grafting were collected from January 2014 to June 2017.