Comparative Effectiveness of Cardiac Resynchronization Therapy With an Implantable Cardioverter-Defibrillator Versus Defibrillator Therapy Alone: A Cohort Study

Study Questions:

What are the clinical outcomes after cardiac resynchronization therapy with a defibrillator (CRT-D) versus implantable cardioverter-defibrillator (ICD) only therapy in real-world practice?