Non-Contact Mapping of the Origin of Provoked Ventricular Tachycardia in Brugada Syndrome

Ohkubo Kimie; Watanabe Ichiro; Okumura Yasuo; Sasaki Naoko; Sonoda Kazumasa; Kogawa Rikitake; Takahashi Keiko; Iso Kazuki; Kofune Masayoshi; Nakai Toshiko; Hirayama Atsushi

doi:10.4264/numa.73.91

原著

Non-Contact Mapping of the Origin of Provoked Ventricular Tachycardia in Brugada Syndrome

Ohkubo Kimie, Watanabe Ichiro, Okumura Yasuo, Sasaki Naoko, Sonoda Kazumasa, Kogawa Rikitake, Takahashi Keiko, Iso Kazuki, Kofune Masayoshi, Nakai Toshiko, Hirayama Atsushi

著者情報

キーワード: Brugada syndrome, non-contact mapping, electrophysiologic study, ventricular tachycardia, ventricular fibrillation

ジャーナルフリー

2014 年 73 巻 2 号 p. 91-94

DOI https://doi.org/10.4264/numa.73.91

詳細

抄録

The pathophysiological basis of Brugada syndrome (BrS) remains controversial. We attempted to isolate the origin of provoked ventricular tachycardia/ventricular fibrillation (VT/VF) associated with BrS through noncontact mapping of the right ventricle (RV). Programmed ventricular stimulation was performed in 3 patients with BrS. Rapid VT of a similar morphology that degenerated into VF was induced from the RV apex (n = 2) or RV outflow tract (RVOT, n = 1). These VTs arose from the RVOT wall or the RV free wall. The RV as the primary origin of VT may be a key target for BrS therapies.

責任著者(Corresponding author)

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