Arrhythmias & electrophysiologyCohort study
Posterior wall ablation by pulsed-field ablation: procedural safety, efficacy, and findings on redo procedures
- Observational cohort study
- consecutive patients
Authors' conclusion
Posterior wall ablation with this pentaspline PFA catheter can be safely and efficiently performed with a high durability observed during redo procedures.
Study context
- Population
- Patients undergoing posterior wall ablation by pulsed-field ablation (recurrent AF despite durable pulmonary vein isolation or roof-dependent atrial tachycardia)67% redo procedures
- Participants
- 215 patients
Main finding
As reported in the abstract
Acute PWA success (single-group); arrhythmia-free outcome
Posterior wall ablation (PWA) successful in all patients
100%
Pulsed-field ablation (PFA) lesions applied, median (IQR 32-44)
36
One-year arrhythmia-free outcome (Kaplan-Meier)
53%
Observational data: associations, not effects.
Further findings
| Outcome | Values |
|---|---|
| Lesion durability at redo procedure · median 6.9 (IQR 2.4-11) months | Redo 12% · Durable PWA 22 (85%) |
- Lesion durability at redo procedure — Roof-dependent atrial tachycardia (AT) among 4 with posterior wall reconnection
- 3 (75%)
Safety
Severe adverse events
- Cardiac tamponade
- 1 (0.9%)
- Vascular access complication
- 1 (0.9%)
Original publication
Posterior wall ablation by pulsed-field ablation: procedural safety, efficacy, and findings on redo procedures. Europace. Published 16 January 2024. doi:10.1093/europace/euae006
Summarised from the published abstract; every number is checked against it