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Archivos de cardiología de México
versão On-line ISSN 1665-1731versão impressa ISSN 1405-9940
Resumo
GUEVARA-VALDIVIA, Milton E et al. Paradoxical electrocardiographic alterations during exercise stress testing in the "Brugada Syndrome". Arch. Cardiol. Méx. [online]. 2003, vol.73, n.3, pp.212-217. ISSN 1665-1731.
38 year old patient with a syncope history and family background of sudden death had an electrocardiogram compatible with the "Brugada Syndrome". When an exercise stress testing with Bruce protocol was done, we found that during the effort phase and at maximum effort, contrary to a ST segment normalization, a discreet increase of the ST segment elevation of 2 mm in V1 and V2 occurred. During recovery phase a decrease in the ST segment elevation was observed, at a normal level as before the test. (Arch Cardiol Mex 2003; 73:212-217).
Palavras-chave : Brugada syndrome; Exercise stress testing; Electrocardiographic "saddleback" variety; ST segment elevation during exercise.