Differential Response to Cardiac Resynchronization Therapy and Clinical Outcomes According to QRS Morphology and QRS Duration
Keywords: بطن چپ; cardiac resynchronization therapy; heart failure; left bundle branch block; QRS durationCRT, cardiac resynchronization therapy; EF, ejection fraction; IVCD, intraventricular conduction delay; LBBB, left bundle branch block; LV, left ventricular; LVAD, lef