SUPER-RESPONSE TO CARDIAC RESYNCHRONIZATION THERAPY IN HEART FAILURE PATIENTS WITH LEFT BUNDLE BRANCH BLOCK AND HOMOGENEOUS LEFT VENTRICULAR CONTRACTION PATTERN

Background: Few data for super-response to cardiac resynchronization therapy (CRT) were reported. Previous studies paid attention to left ventricular (LV) mechanical dyssynchrony in predicting response to CRT. However, a certain proportion of heart failure (HF) patients with left bundle branch block