J Wave and ST Segment Elevation in the Inferior Leads <b>A Latent Type of Variant Brugada Syndrome ?</b>

Makoto Sahara; Kouichi Sagara; Takeshi Yamashita; Tsuyoshi Abe; Hajime Kirigaya; Misao Nakada; Hiroyuki Iinuma; Long Fu; Hiroshi Watanabe

doi:10.1536/jhj.43.55

Case Reports

J Wave and ST Segment Elevation in the Inferior Leads

A Latent Type of Variant Brugada Syndrome ?

Makoto Sahara, Kouichi Sagara, Takeshi Yamashita, Tsuyoshi Abe, Hajime Kirigaya, Misao Nakada, Hiroyuki Iinuma, Long Fu, Hiroshi Watanabe

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Keywords: Idiopathic ventricular fibrillation, Ventricular tachycardia, Sodium channel blockers, Pilsicainide, J wave, Inferior leads, Brugada syndrome

JOURNAL FREE ACCESS

2002 Volume 43 Issue 1 Pages 55-60

DOI https://doi.org/10.1536/jhj.43.55

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Abstract

In a patient referred for the evaluation of non-sustained monomorphic ventricular tachycardia on Holter recordings, ventricular fibrillation was electrically induced during electrophysiologic study. Despite the absence of structural heart diseases, his ECG revealed J wave and ST segment elevation in the inferior leads, which showed circadian variation and were augmented by the sodium channel blocker, pilsicainide. This case might lead us to notice a new concept, a 'latent' type of variant Brugada syndrome, and these ECG findings and changes might serve as its diagnostic sign.

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