Atrial fibrillation (AF) is the most common type of cardiac arrhythmia which affects 33 million individuals worldwide.[1] It is associated with many adverse outcomes, including stroke, dementia, heart failure (HF), and mortality.[2] Based on a growing body of evidence illustrating its efficacy and safety, catheter ablation (CA) has become an important treatment strategy for symptomatic AF.[3] Most centers have progressively moved from performing paroxysmal AF to more complex long?standing persistent AF or patients with more comorbidities.