The metrics include electrocardiographic, echocardiographic and hemodynamic parameters to evaluate and compare LBBP with BVP for resynchronization therapy in patients with heart failure and LBBB.
The study was designed to compare the acute effects of left bundle branch pacing (LBBP) with biventricular pacing (BVP) in patients with left ventricular ejection fraction (LVEF) <=35% with left bundle branch block (LBBB).