Introduction: Cardiac resynchronization therapy (CRT) is now an established
nonpharmacologic therapy for advanced heart failure with electromechanical delay. Despite …

Over the past decade, cardiac resynchronization therapy (CRT) has changed the treatment
of patients with endstage, drug-refractory heart failure. Evidence of 8 large trials (including …

Background—The relative merits of left ventricular (LV) dyssynchrony, LV lead position, and
myocardial scar to predict long-term outcome after cardiac resynchronization therapy remain …

Objectives: The purpose of this study was to compare left ventricular (LV) dyssynchrony
assessment by gated myocardial perfusion single-photon emission computed tomography …

It was shown that improvement in left ventricular (LV) function and reverse remodeling after
cardiac resynchronization therapy (CRT) were greater in patients with nonischemic …

Aim To determine whether myocardial scarring, quantified using late gadolinium
enhancement-cardiovascular magnetic resonance (LGE-CMR), predicts response to cardiac …

Cardiac resynchronization therapy (CRT) is now a well-recognized therapeutic option for
patients with end-stage heart failure. However, not all patients respond to CRT, and …

Objectives: The purpose of this study was to test the hypothesis that a combined
echocardiographic assessment of longitudinal dyssynchrony by tissue Doppler imaging …

Background—The ability of echocardiographic dyssynchrony to predict response to cardiac
resynchronization therapy (CRT) has been unclear. Methods and Results—A prospective …

BACKGROUND: Cardiac resynchronization therapy (CRT) is currently indicated in patients
with moderate to severe heart failure, a wide QRS complex and significant left ventricular …