Incidence and predictors of AF recurrence during long-term follow-up of patients after PF ablation for atrial fibrillation - PubMed
4 hours ago
- #Atrial Fibrillation
- #Ablation
- #Pulmonary Vein Isolation
- Pulsed field ablation (PFA) is used for pulmonary vein isolation (PVI) in atrial fibrillation (AF) patients, but long-term outcome data is limited.
- A retrospective study of 339 patients (63% paroxysmal AF, 37% persistent AF) and 55 redo procedures was conducted.
- 34% of patients experienced arrhythmia recurrence after a 90-day blanking period, with a median time to recurrence of 218 days.
- Electrical cardioversion at the end and AF at the beginning of the procedure were independently associated with higher recurrence risk.
- Additional anterior flower applications were protective against recurrence in univariate analysis.
- PV reconnections were common in repeat ablations, especially at the anterior PV aspect.
- A multiple procedure approach improved long-term arrhythmia-free survival, with an 86% success rate after ≥ 2 procedures.
- Procedures with additional anterior lesions at the right pulmonary veins (RPVs) may be protective against recurrences.