SLL‐Type CCTGA With Dual AV Conduction System: Anterior AV Node‐Origin Atrial Tachycardia From RVOT
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| Natura: | Artículo Open Access |
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Wiley
2026
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| _version_ | 1867011117747798017 |
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| author | Xuesong Shi Mingyu Sun Zulu Wang |
| author_facet | Xuesong Shi Mingyu Sun Zulu Wang Xuesong Shi Mingyu Sun Zulu Wang |
| collection | Wiley Open Access |
| contents | SLL‐Type CCTGA With Dual AV Conduction System: Anterior AV Node‐Origin Atrial Tachycardia From RVOT Xuesong Shi Mingyu Sun Zulu Wang Pacing and Clinical Electrophysiology ABSTRACT Background Congenitally corrected transposition of the great arteries (ccTGA) involves atrio‐ventricular/ventriculo‐arterial discordance, leading to AV node‐His bundle variations that complicate RVOT anterior AV node‐origin atrial tachycardia (AT). Case Summary A 16‐year‐old male with 3‐year paroxysmal palpitations (worsened 6 months) had narrow QRS tachycardia. Echocardiography/CTA confirmed SLL‐type ccTGA. Electrophysiologic study revealed dual AV conduction system (RVOT His potentials) and RVOT as the earliest activation site. Radiofrequency ablation succeeded, with no recurrence/AV block at 12‐month follow‐up. Conclusion In ccTGA, pulmonary artery/RVOT is adjacent to the anteroseptum (aortic sinuses distant); redefining localization/ablation strategies ensures safety and success. 10.1111/pace.70174 http://onlinelibrary.wiley.com/termsAndConditions#vor |
| doi_str_mv | 10.1111/pace.70174 |
| format | Artículo Open Access |
| id | wiley_oa_10_1111_pace_70174 |
| institution | Wiley Open Access |
| license_str_mv | http://onlinelibrary.wiley.com/termsAndConditions#vor |
| publishDate | 2026 |
| publisher | Wiley |
| record_format | wiley_oa |
| spellingShingle | SLL‐Type CCTGA With Dual AV Conduction System: Anterior AV Node‐Origin Atrial Tachycardia From RVOT Xuesong Shi Mingyu Sun Zulu Wang Pacing and Clinical Electrophysiology SLL‐Type CCTGA With Dual AV Conduction System: Anterior AV Node‐Origin Atrial Tachycardia From RVOT Xuesong Shi Mingyu Sun Zulu Wang Pacing and Clinical Electrophysiology ABSTRACT Background Congenitally corrected transposition of the great arteries (ccTGA) involves atrio‐ventricular/ventriculo‐arterial discordance, leading to AV node‐His bundle variations that complicate RVOT anterior AV node‐origin atrial tachycardia (AT). Case Summary A 16‐year‐old male with 3‐year paroxysmal palpitations (worsened 6 months) had narrow QRS tachycardia. Echocardiography/CTA confirmed SLL‐type ccTGA. Electrophysiologic study revealed dual AV conduction system (RVOT His potentials) and RVOT as the earliest activation site. Radiofrequency ablation succeeded, with no recurrence/AV block at 12‐month follow‐up. Conclusion In ccTGA, pulmonary artery/RVOT is adjacent to the anteroseptum (aortic sinuses distant); redefining localization/ablation strategies ensures safety and success. 10.1111/pace.70174 http://onlinelibrary.wiley.com/termsAndConditions#vor |
| title | SLL‐Type CCTGA With Dual AV Conduction System: Anterior AV Node‐Origin Atrial Tachycardia From RVOT |
| topic | Pacing and Clinical Electrophysiology |
| url | https://onlinelibrary.wiley.com/doi/10.1111/pace.70174 |