A Case of Adenosine Sensitive Atrial Tachycardia Originating from the His-Bundle Region Successfully Ablated from the Non-coronary Aortic Cusp

A Case of Adenosine Sensitive Atrial Tachycardia Originating from the His-Bundle Region Successfully Ablated from the Non-coronary Aortic Cusp

Abstract The case of a patient with narrow QRS tachycardia is herein presented. During an electrophysiological study, this tachycardia was diagnosed as a focal atrial tachycardia with a high sensitivity to adenosine-5′-triphosphate (2 mg), and originating from near the His-bundle region. We could no...

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Veröffentlicht in:Journal of Arrhythmia 2010-01, Vol.26 (1), p.44-49
Hauptverfasser: Yamashita, Seigo, MD, Yamane, Teiichi, MD, Matsuo, Seiichiro, MD, Ito, Keiichi, MD, Narui, Ryohsuke, MD, Hioki, Mika, MD, Nakane, Tokiko, MD, Tokuda, Michifumi, MD, Aramaki, Yasuko, MD, Inada, Keiichi, MD, Shibayama, Kenri, MD, Miyanaga, Satoru, MD, Yoshida, Hiroshi, MD, Date, Taro, MD, Miyazaki, Hidekazu, MD, Abe, Kunihiko, MD, Sugimoto, Ken-ichi, MD, Yoshimura, Michihiro, MD
Format: Artikel
Sprache:eng
Schlagworte:
ATP sensitive atrial tachycardia
Cardiovascular
Catheter ablation
Non-coronary aortic cusp
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Zusammenfassung:Abstract The case of a patient with narrow QRS tachycardia is herein presented. During an electrophysiological study, this tachycardia was diagnosed as a focal atrial tachycardia with a high sensitivity to adenosine-5′-triphosphate (2 mg), and originating from near the His-bundle region. We could not ablate the earliest activation site in the right atrium because of the simultaneous recording of the His potential. The radiofrequency applications in the right atrium around the earliest activation site failed to terminate the tachycardia. Subsequent attempt of radiofrequency application in the non-coronary aortic cusp, where the earliest atrial activation without His potential was obtained, successfully eliminated the tachycardia without any atrioventricular nodal injury.
ISSN:1880-4276
1883-2148
DOI:10.1016/S1880-4276(10)80035-3