Brugada syndrome associated with an autonomic disorder.

Nomura, M; Nada, T; Endo, J; Kondo, Y; Yukinaka, M; Saito, K; Ito, S; Mori, H et al. · Heart · 1998

case_report · Level V

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Abstract

A 44 year old man with Brugada syndrome and ventricular fibrillation had an autonomic disorder, shown by spectral analysis of heart rate variability and 123I-MIBG myocardial scintigraphy. Periodic variation of the ST segments was detected by Holter ECG. Increased high frequency power (0.15-0.40 Hz), an index of parasympathetic nerve activity, was observed just before ST segment elevation. In addition, local dysfunction of sympathetic nerves in the left ventricle was detected by 123I-MIBG myocardial scintigraphy. Unbalanced autonomic nerve function plays an important role in inducing Brugada-type ECG signs.

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