Arrhythmias & electrophysiologyCohort study
Bipolar radiofrequency ablation of refractory ventricular arrhythmias: results from a multicentre network
- Multicentre registry study
- 16 European centres
- consecutive patients
Authors' conclusion
These real-world registry data indicate that Bi-RFA appears safe, is feasible, and is effective in the majority of patients with VT/PVC.
Study context
- Population
- Patients with recurring ventricular tachycardia (VT)/premature ventricular complexes (PVC) after at least one standard unipolar radiofrequency ablation, 16 European centres, March 2021–August 2024
- Participants
- 91 patients · 94 Bi-RFA procedures
Main finding
As reported in the abstract
Acute procedural effect on clinical VT/PVC
Elimination of clinical VT/PVC
67 (74%)
Suppression of VT/PVC
10 (11%)
No effect on VT/PVC
14 (15%)
Observational data: associations, not effects.
Further findings
| Outcome | Values |
|---|---|
| Procedural times · procedural time | Bi-RFA 160 ± 73 min · Bi-RFA time 426 ± 286 s · Uni-RFA time (mean) 819 ± 697 s |
VT free during follow-up (7 ± 8 months)
- Remained VT free
- 19 (61%)
≥80% PVC burden reduction · 7 ± 8 months
- ≥80% PVC burden reduction
- 45 (78%)
Safety
Major complications
- Major complications: coronary artery occlusion, atrioventricular block, arteriovenous fistula
- 3
Original publication
Bipolar radiofrequency ablation of refractory ventricular arrhythmias: results from a multicentre network. Europace. Published 27 September 2024. doi:10.1093/europace/euae248
Summarised from the published abstract; every number is checked against it