Catheter Ablation and Rate Control of Atrial Fibrillation in Patients With Heart Failure

Catheter Ablation Versus Rate Control in Patients With Atrial Fibrillation and Heart Failure: A Multicenter Study

To evaluate the efficacy of catheter ablation and rate control in heart failure patients with atrial fibrillation.

All patients received either catheter ablation for rhythm control or rate control before enrollment, and the investigators do not assign specific interventions to the subjects during the study. So this study might be considered to be observational.

Inclusion Criteria:

• age>18 years
• documented atrial fibrillation
• New York Heart Association Ⅱ-Ⅳ or left ventricular ejection fraction <50%

Exclusion Criteria:

• heart failure that had a suspected reversible cause
• previous ablation
• any contraindication to catheter ablation