Successful Radiofrequency Catheter Ablation From the Supravalvular Region of the Aortic Valve in a Patient With Outflow Tract Ventricular Tachycardia

Hitoshi Hachiya; Kazutaka Aonuma; Yasuteru Yamauchi; Jung-cha Oh; Tomoo Harada; Hiroshi Kano; Isshi Kobayashi; Masayoshi Korenaga; Masayuki Igawa; Akihiko Nogami; Yoshito Iesaka; Michiaki Hiroe; Fumiaki Marumo

doi:10.1253/jcj.64.459

Case Reports

Successful Radiofrequency Catheter Ablation From the Supravalvular Region of the Aortic Valve in a Patient With Outflow Tract Ventricular Tachycardia

Hitoshi Hachiya, Kazutaka Aonuma, Yasuteru Yamauchi, Jung-cha Oh, Tomoo Harada, Hiroshi Kano, Isshi Kobayashi, Masayoshi Korenaga, Masayuki Igawa, Akihiko Nogami, Yoshito Iesaka, Michiaki Hiroe, Fumiaki Marumo

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Keywords: Aortic cusp, Catheter ablation, Outflow tract ventricular tachycardia, Subepicardial region

JOURNAL FREE ACCESS

2000 Volume 64 Issue 6 Pages 459-463

DOI https://doi.org/10.1253/jcj.64.459

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Abstract

Outflow tract ventricular tachycardia (OT-VT) was successfully ablated from the right coronary cusp of the aortic valve. The 12-lead ECG was totally different from the typical right ventricular OT-VT because the R/S ratio in precordial lead V₁ was equal to 1 and tall R waves in precordial leads V_2-6 were seen. Radiofrequency energy application from the right coronary cusp of the aortic valve successfully ablated this VT without complications. Radiofrequency catheter ablation from the right coronary cusp of the aortic valve can be done safely and effectively.

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