The Effect of Intermittent Atrial Tachyarrhythmia on Heart Failure or Death in CRT-D Versus ICD Patients: A MADIT-CRT Substudy

Study Questions:

Do intermittent atrial tachyarrhythmias (IATs), defined as atrial fibrillation (AF), atrial flutter, or paroxysmal supraventricular tachycardia, compromise the effects of cardiac resynchronization therapy (CRT)?