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Dynamic changes of 12-lead electrocardiograms in a patient with Brugada syndrome
K Matsuo1, W Shimizu, T Kurita
1Department of Internal Medicine, National Cardiovascular Center, Suita, Osaka, Japan.
Journal of Cardiovascular Electrophysiology
|June 2, 1998
Abstract:
We present a patient with Brugada syndrome in whom 12-lead ECGs were recorded just before and after an episode of ventricular fibrillation (VF). A progressive elevation of both the RS-T segment and J waves just preceding and following the VF, and a close relationship between the amplitude of the RS-T segment and the preceding R-R intervals during atrial fibrillation, were documented. These findings support the hypothesis that RS-T elevation and a subsequent VF are related to a transient outward current-mediated spike-and-dome morphology of the epicardial action potential.