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2003, Number 3

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Arch Cardiol Mex 2003; 73 (3)

Paradoxical electrocardiographic alterations during exercise stress testing in the 'Brugada Syndrome'

ME Guevara-Valdivia, A de Micheli, P Iturralde, L Colín, MF Márquez, JA González-Hermosillo
Full text How to cite this article

Language: Spanish
References: 11
Page: 212-172
PDF size: 332.27 Kb.


Key words:

Brugada syndrome, Exercise stress testing, Electrocardiographic “saddleback” variet, ST segment elevation during exercise.

ABSTRACT

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.


REFERENCES

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  2. Brugada J, Brugada P, Brugada R: El síndrome de Brugada y las miocardiopatías derechas como causa de muerte súbita. Diferencias y similitudes. Rev Esp Cardiol 2000; 53: 275-285.

  3. Guevara-Valdivia ME, Iturralde P, de Micheli A, Colin L, Medeiros A, Gonzalez JA: Alteraciones electrocardiográficas durante el esfuerzo en un paciente con “síndrome de Brugada”. Arch Cardiol Mex 2001; 71: 66-72.

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  6. Guevara-Valdivia ME, Iturralde P, de Micheli A, Colin L, Gonzalez JA: Electrocardiographic alterations during exercise stress testing in the “Brugada Syndrome” en http://www.brugada-symposium.org

  7. Nomura M, Nada T, Endo J, Kondo Y, Yukinaka M, Saito K, et al: Brugada syndrome associated with an autonomic disorder. Heart 1998; 80: 194-196.

  8. Matsuo K, Shimizu W, Kurita T, Inagaki M, Aihara N, Kamakura S: Dynamic changes of 12-lead electrocardiograms in a patient with Brugada syndrome. J Cardiovasc Electrophysiol 1998; 9: 508-512.

  9. Antzelevitch C: The Brugada syndrome: ionic basis and arrhythmia mechanisms. J Cardiovasc Electrophysiol 2001; 12: 268-72.

  10. Antzelevitch C, Brugada R: Expert´s opinion. J Electrocardiol 2003; 36: 165.

  11. Marquez MF, Medrano G, Frank R, Fontaine G, Hermosillo AG, Cardenas M: Cycle Length-Dependent Repolarization Changes during Atrial Fibrillation in the Brugada Syndrome. J Electrocardiol 2003; 36: 161-164.




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Arch Cardiol Mex. 2003;73