The association of CABG vs. PCI on echocardiographic indices of global longitudinal strain and myocardial work in patients with HFrEF and ischemic cardiomyopathy: a pilot study

Background: It is unknown if the mode of coronary revascularization among patients with heart failure with reduced ejection fraction (HFrEF) of ischemic etiology may differentially impact on advanced echocardiographic indices of myocardial function, independently of traditional parameters such as left ventricular ejection fraction (LVEF). Purpose: To determine whether the mode of coronary revascularization is associated with the difference in advanced echocardiographic parameters reflecting myocardial function among patients with HFrEF and ischemic cardiomyopathy. Methods: Forty consecutive HFrEF (LVEF