Coronary Artery Bypass Surgery versus Medical Treatment in Patients with Low Ejection Fraction and Coronary Artery Disease

Background: We compared the outcomes in patients with a low ejection fraction (EF) and multivessel coronary artery disease (CAD) who either underwent coronary artery bypass grafting (CABG) or received medical treatment (MT) after a viability study via dobutamine stress echocardiography (DSE).Methods: We considered patients with CAD and left ventricular ejection fraction (LVEF) 25% (100% vs. 40%, P< 0.05). Conclusion: The patients with CAD and a low EF had the same survival rate after both CABG and MT at mid-term follow-up. Long-term follow-up is needed to show the survival benefit of CABG in such patients with an acceptable extent of viable myocardium.