Arrhythmias & electrophysiologyCohort study
Atrial fibrillation ablation workflow optimization facilitated by high-power short-duration ablation and high-resolution mapping
- Comparative cohort study
- three standardized electrophysiology (EP) laboratory set-ups
Authors' conclusion
The integration of high-density mapping and HPSD protocols into an institutional AF ablation process resulted in reduced procedure times without compromising safety or efficacy.
Study context
- Population
- Patients undergoing pulmonary vein isolation (PVI) for AF without additional left atrial ablation
- Participants
- 307 patients
- Exposure
- High-power short-duration (HPSD) ablation with high-density mapping (50 W ablation index (AI); 90 W/4 s) vs circular catheter mapping with 30/35 W AI
- 30/35 W AIn = 102reference
- 50 W AIn = 102
- 90 W/4 sn = 103
Main finding
As reported in the abstract
Procedural times
| Group | Skin-to-skin time | Total laboratory time |
|---|---|---|
| 30/35 W AI | 105.3 ± 22.7 | 132.8 ± 42.1 |
| 50 W AI | 81.4 ± 21.3 | 107.4 ± 25.7 |
| 90 W/4 s | 69.5 ± 12.2 | 95.2 ± 14.0 |
- 30/35 W AI vs 50 W AI vs 90 W/4 s vs 30/35 W AI: P ≤ 0.001 — skin-to-skin time
- 30/35 W AI vs 50 W AI vs 90 W/4 s vs 30/35 W AI: P < 0.001 — total laboratory time
Observational data: associations, not effects.
Further findings
Arrhythmia-free survival · 12 months
- Not different among the study groups
- log-rank P = 0.96
Original publication
Atrial fibrillation ablation workflow optimization facilitated by high-power short-duration ablation and high-resolution mapping. Europace. Published 22 March 2024. doi:10.1093/europace/euae067
Summarised from the published abstract; every number is checked against it