Predicting atrial fibrillation recurrence after ablation in patients with heart failure: Validity of the APPLE and CAAP‐AF risk scoring systems

Compared with medical therapy, catheter ablation of atrial fibrillation (AF) in patients with heart failure (HF) improves cardiovascular outcomes. Risk scores (CAAP-AF and APPLE) have been developed to predict the likelihood of AF recurrence after ablation, have not been validated specifically in patients with AF and HF.