Arrhythmias & electrophysiology
Operator learning curve with a novel dual-energy lattice-tip ablation system
Authors' conclusion
AF ablation with a novel dual-energy, lattice-tip ablation system resulted in greater clinical efficacy compared with conventional RF after a rapid operator learning curve, with superior procedural efficiency noted from the initial procedures onward.
Study context
- Population
- Patients with persistent atrial fibrillation (AF) treated with a 9-mm, lattice-tip, pulsed field (PF)/radiofrequency (RF) system or conventional contact force-sensing RFtotal cohort · investigational 235 · roll-in (investigational) 31 · control 208
- Participants
- 443 patients
- Comparison
- Investigational dual-energy lattice-tip system by procedural order per operator, and vs conventional RF control
- Investigationaln = 235
- Controln = 208
- Outcome
- Primary composite effectiveness:
- Freedom from acute procedural failure
- Repeat ablation at any time
- Recurrence of arrhythmia
- Drug initiation/escalation
- Cardioversion
- Excluding a 3-month blanking period
- Follow-up
- 1 year
Methodological detailspatients grouped by sequential procedures performed per operator, operators who performed ≤2 investigational procedures excluded
- Patients grouped by sequential procedures performed per operator
- Operators who performed ≤2 investigational procedures excluded
Main finding
As reported in the abstract
Further findings
Total procedure time · within the first 5 procedures performed · reduced with investigational
difference 25 · P < 0.001
| Outcome | Investigational | Control | P value |
|---|---|---|---|
| Kaplan-Meier effectiveness estimates · 1-year follow-upInvestigational, after 10 procedures performed vs control · significantly higher with investigational | — not stated in the abstract | 65% | P < 0.05 |
— not stated in the abstract
- Kaplan-Meier effectiveness estimates: investigational, after 10 procedures performed 80%
Original publication
Operator learning curve with a novel dual-energy lattice-tip ablation system. Heart Rhythm. Published 6 February 2025. doi:10.
Composed by AI from the published abstract and checked against it. How Briefs are made →