Congenital heart diseaseCohort study
Catheter ablation in congenital heart diseases: a French nationwide study
- Prospective nationwide registry study
- multicentre
- 28 French centres
- consecutive procedures
Authors' conclusion
Catheter ablation in patients with CHD demonstrates highly favourable acute outcomes and a low complication rate. Recurrence rates during follow-up vary depending on the targeted arrhythmia and the underlying CHD.
Study context
- Population
- Patients with congenital heart disease (CHD) referred for catheter ablation, 28 French centres, 2020 to July 2024
- Participants
- 998 patients · 1,135 procedures
- Outcome
- Per-procedural acute success
Main finding
As reported in the abstract
Acute success
Clinical arrhythmia successfully ablated
1071 (94.4%)
Acute success, ventricular arrhythmias
86.7%
Observational data: associations, not effects.
Secondary outcomes
Freedom from arrhythmia recurrence · 1 and 2 years
- 1-year recurrence-free rate
- 77.3% (95% CI 74.2%-80.4%)
- 2-year recurrence-free rate
- 68.4% (95% CI 64.7%-72.3%)
- Significant variations in recurrence by arrhythmia type and underlying CHD
Safety
Acute complications
- Acute complications
- 43 procedures (3.8%)
- Death
- 1 (0.1%)
Original publication
Catheter ablation in congenital heart diseases: a French nationwide study. Eur Heart J. Published 21 May 2025. doi:10.1093/eurheartj/ehaf343
Summarised from the published abstract; every number is checked against it