Arrhythmias & electrophysiology
Predictors of late recurrence after second catheter ablation for persistent atrial fibrillation
Authors' conclusion
Absence of pulmonary vein reconnections and presence of ER were strongly associated with LR after the second RFCA in patients with persistent AF.
Study context
- Population
- Patients with persistent atrial fibrillation (AF) undergoing a second radiofrequency catheter ablation (RFCA) for late recurrence after initial RFCA
- Participants
- 123 patients
- Outcome
- Predictors of late recurrence (atrial tachyarrhythmia >3 months after ablation) after second RFCA
Main finding
As reported in the abstract
Independent predictors of LR after second RFCA (multivariate Cox)
- Absence of pulmonary vein reconnections at start of second RFCA
- P = .004
- Early recurrence (within 3 months) after second RFCA
- P < .001
Observational data: associations, not effects.
Further findings
Univariate predictors of late recurrence (LR) after second RFCA
- Elevated brain natriuretic peptide levels
- P = 0.025
- Absence of pulmonary vein reconnections at start of second RFCA
- P = 0.018
- Early recurrence after second RFCA
- P < 0.001
Original publication
Predictors of late recurrence after second catheter ablation for persistent atrial fibrillation. Heart Rhythm. Published 28 October 2024. doi:10.
Composed by AI from the published abstract and checked against it. How Briefs are made →