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Updated: Jan 8, 2026

Optimization of Transesophageal Atrial Pacing to Assess Atrial Fibrillation Susceptibility in Mice

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セニング手術後の心房頻拍における解剖学的に一貫した基質：2例からの洞察

Suguru Nishiuchi^1,2, Makoto Miyake^1,3, Hibiki Mima¹

¹Department of Cardiology, Tenri Hospital, Tenri, Nara, Japan.

Pacing and clinical electrophysiology : PACE

|December 22, 2025

Abstract:

We report two adult male patients in their 30s who underwent multiple radiofrequency ablation procedures for atrial tachycardia decades after the Senning operation. High-resolution electroanatomic mapping revealed two consistent tachycardia mechanisms: (i) reentrant circuit localized to the systemic venous atrium, and (ii) cavotricuspid isthmus-dependent reentry spanning both atria. Despite complex anatomy, targeted ablation achieved durable rhythm control. These cases demonstrate reproducible arrhythmogenic substrates in the post-Senning population and support the utility of empirical substrate-based mapping in guiding ablation strategies for atrial tachyarrhythmias.

キーワード:

心房頻拍セニング手術高周波アブレーション基質マッピング不整脈先天性心疾患心臓電気生理学

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