Several observational studies of catheter ablation in patients with HFrEF reported that maintenance of sinus rhythm by catheter ablation can improve left ventricular ejection fraction, functional status as well as reduce heart failure hospitalizations [21,22,23,24].

Does ablation help heart failure?

Conclusions. Restoration and maintenance of sinus rhythm by catheter ablation without the use of drugs in patients with congestive heart failure and atrial fibrillation significantly improve cardiac function, symptoms, exercise capacity, and quality of life.

Does atrial fibrillation reduced ejection fraction?

Early-onset atrial fibrillation patients show reduced left ventricular ejection fraction and increased atrial fibrosis.