Resumo

GUEVARA-VALDIVIA, Milton E et al. Exercise test unmasks apparent right bundle branch block and ST segment elevation in the Brugada syndrome. Arch. Cardiol. Méx. [online]. 2001, vol.71, n.1, pp.66-72. ISSN 1665-1731.

We report a 28 year old man with the Brugada syndrome characterised by an electrocardiographic pattern of a right bundle branch block and an ST segment elevation in the right precordial leads as well as syncope. During an exercise test, we observed a normalization of the ST segment in V₂₊ while in the postexercise phase, the ST segment elevation in the right leads was established. This is the first case reported of the Brugada syndrome in Mexico, with spontaneous changes on the EKG masked during exercise and apparent during postexercise phase.

Palavras-chave : Brugada syndrome; Syncope; Right bundle branch block.

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