CHADS-VASc Score as a Predictor of New-Onset Atrial Fibrillation After Catheter Ablation of Typical Atrial Flutter.

Purpose: Cavotricuspid isthmus (CTI) ablation is an effective procedure for typical atrial flutter (AFL), but patients remain at an elevated risk for developing new atrial fibrillation (AF). Currently, there are limited data on the utility of CHADS-VASc score to predict new-onset AF after typical AFL ablation. In this study, we assessed whether the CHADS-VASc score is a useful predictor of new-onset AF after CTI ablation in typical AFL patients without a prior history of AF.