Contractile reserve assessed by dobutamine test identifies super-responders to cardiac resynchronization therapy

摘要

IntroductionIn this study, we sought to determine whether myocardial contractile reserve (CR) assessed by dobutamine stress echocardiography (DSE) can identify patients who experience nearly complete normalization of left ventricular (LV) function after the implantation of a cardiac resynchronization therapy (CRT) pacemaker.