Arrhythmias & electrophysiologyCohort study
Performance and safety of temperature- and flow-controlled radiofrequency ablation for ventricular arrhythmia
- Prospective registry study with historical comparison cohort
- single-centre
- consecutive patients
- historical control
Authors' conclusion
Ventricular ablation using QMODE ≤ 50 W is safe and effective for both VT and PVC ablation and is associated with a low risk for steam pop.
Study context
- Population
- Consecutive patients undergoing ventricular ablation (ventricular tachycardia (VT) or premature ventricular complexes (PVC))VT 41, PVC 66
- Participants
- 107 patients
- Exposure
- QDOT vs STSF ablation
- QDOTn = 107
- Outcome
- Safety and efficacy of QMODE ablation in the ventricle and risk of steam pop
Main finding
As reported in the abstract
VT ablation: Radiofrequency (RF) time
P = 0.002
- Steam pops (audible)
- 5 (0.02%)
Observational data: associations, not effects.
Further findings
VT ablation: procedure time
P = 0.06
PVC ablation: RF time
P = 0.25
PVC ablation: procedure time
P = 0.75
VT recurrence
P = 0.82
PVC recurrence
P = 0.71
Safety
VT ablation: complications
P = 0.9
VT ablation: mortality
P = 0.67
PVC ablation: complications
P = 0.17
Original publication
Performance and safety of temperature- and flow-controlled radiofrequency ablation for ventricular arrhythmia. Europace. Published 9 January 2024. doi:10.1093/europace/euad372
Summarised from the published abstract; every number is checked against it