Population-Based Study of the Use of Cardiac Stress Imaging and Referral for Coronary Angiography and Repeated Revascularization After Coronary Artery Bypass Graft Surgery

Half of this community-based population of patients with CABG underwent stress SPECT or echocardiography during median follow-up of 8.9 years. Despite that approximately 75% of the results of stress imaging studies were abnormal, subsequent referral for coronary angiography within 180 days was low (13.3%), and the yield for repeated revascularization was very low (4.4%).