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- Title
Narrow QRS ectopy with concealed connections from a para‐Hisian origin to the proximal left fascicles.
- Authors
Nakamura, Kohki; Sasaki, Takehito; Minami, Kentaro; Aoki, Hideyuki; Yoshimura, Shingo; Nishiuchi, Suguru; Naito, Shigeto
- Abstract
Introduction: Catheter ablation of ectopy originating from the vicinity of the His bundle can be challenging. Methods and Results: We report a case of a 33‐year‐old man with narrow QRS ectopy with preferential conduction from a para‐Hisian origin to the proximal left fascicles, which was successfully eliminated by radiofrequency ablation in the right coronary cusp, guided by ultrahigh‐resolution mapping of the His bundle, bundle branch, and fascicular electrograms. Conclusion: Some narrow QRS ectopy may originate from the vicinity of the conduction system, instead of the "true" conduction system, and have concealed connections from its origin to the conduction system.
- Subjects
MUSCLE anatomy; HEART function tests; BODY surface mapping; RADIO frequency therapy; HEART beat; CORONARY arteries; HIS bundle; CATHETER ablation; ELECTROPHYSIOLOGY
- Publication
Journal of Cardiovascular Electrophysiology, 2024, Vol 35, Issue 6, p1235
- ISSN
1045-3873
- Publication type
Article
- DOI
10.1111/jce.16262