Assessing the impact of a new atrial fibrillation (AF) catheter ablation energy on left atrial structure and function is of crucial importance.
The goal of this clinical trial is to assess the effect of pulsed-field ablation of atrial fibrillation on left atrial structure.
Patient age ≥ 18
Established diagnosis of persistent or paroxysmal atrial fibrillation with a I/IIa/IIb indication for catheter ablation (ESC 2020 guidelines)
AF ablation procedure planned using pulsed-field ablation and including at least pulmonary vein isolation and posterior wall isolation
Episode of AF documented by ECG within the last 12 months
Only pulmonary vein isolation is scheduled
Atrial fibrillation present at ECG during the pre-ablation (V1a) visit
Contraindication to oral anticoagulation
Intracardiac thrombus