Arrhythmias & electrophysiology
Catheter ablation of coronary sinus accessory pathways in the young
Authors' conclusion
Success of CS-AP ablation in the young was comparable to that of endocardial AP ablation. Substantial risk of coronary artery injury should be considered when CS-AP ablation is performed in the young.
Study context
- Population
- Patients ≤18 years with coronary sinus accessory pathways, May 2003 to December 202124 coronary venous system (CVS) mapped
- Participants
- 22 vs 48
- Exposure
- Catheter ablation of coronary sinus accessory pathways (CS-APs) via coronary venous system vs endocardial AP ablation
- CVSn = 22
- Controlsn = 48reference
- Outcome
- Feasibility, outcome and safety (procedural success)
Methodological detailssingle-centre, tertiary pediatric electrophysiological referral center, matched controls from European Multicenter Pediatric Ablation Registry
- Single-centre
- Tertiary pediatric electrophysiological referral center
- Matched controls from European Multicenter Pediatric Ablation Registry
Main finding
As reported in the abstract
Overall procedural success
Observational data: associations, not effects.
Further findings
- Repeat supraventricular tachycardia (SVT) · CVS: median follow-up 8.5 years; Controls: 12 months — CVS
- 23%
- Repeat SVT — CVS overall success after reablation (4 of the 5 reablated)
- 94.4%
Repeat SVT · CVS: median follow-up 8.5 years; Controls: 12 months
- Controls free from SVT during 12-month follow-up (registry protocol)
Safety
Coronary artery injury after radiofrequency ablation
Original publication
Catheter ablation of coronary sinus accessory pathways in the young. Heart Rhythm. Published 8 March 2023. doi:10.
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