Key result
Targeted RF ablation at the coronary sinus diverticular neck eliminates accessory pathway conduction.
Why the study?
Ablation of a posteroseptal accessory pathway with coronary sinus ostial atresia is challenging and requires alternative approaches after failed annular ablation.
Does targeted radiofrequency ablation at the coronary sinus diverticular neck eliminate accessory pathway conduction in a patient with a posteroseptal accessory pathway and coronary sinus ostial atresia?
Population
Patient with posteroseptal accessory pathway and coronary sinus ostial atresia
Comparison
Targeted mapping and radiofrequency ablation at coronary sinus diverticular neck vs failed annular ablation
Design
Case report
Authors
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May guide ablation to the diverticular neck when annular sites fail in coronary sinus anomalies; leaves open generalizability beyond this single case.
Case Report (n=1)
No
Does targeted radiofrequency ablation at the coronary sinus diverticular neck eliminate accessory pathway conduction in a patient with a posteroseptal accessory pathway and coronary sinus ostial atresia?
In patients with posteroseptal accessory pathways and coronary sinus anomalies, the critical ablation target may be located at the diverticular neck rather than the endocardial annulus.
Kitahara et al. (2026) conducted a case report in Posteroseptal accessory pathway with coronary sinus ostial atresia (n=1). Radiofrequency ablation at the coronary sinus diverticular neck was evaluated on Elimination of accessory pathway conduction. Targeted radiofrequency ablation at the coronary sinus diverticular neck successfully eliminated accessory pathway conduction in a patient with coronary sinus ostial atresia.
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