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Vol. 69. Issue 9.
Pages 865 (September 2016)
ECG Contest
DOI: 10.1016/j.rec.2016.04.041
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ECG, September 2016
ECG de septiembre de 2016
Adolfo Fontenla
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Corresponding author:
, Álvaro Lozano, María López-Gil
Unidad de Arritmias, Servicio de Cardiología, Hospital Universitario 12 de Octubre, Madrid, Spain
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Rev Esp Cardiol. 2016;69:97910.1016/j.rec.2016.04.042
Adolfo Fontenla, Álvaro Lozano, María López-Gil
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A 29-year-old woman, with no antecedents of interest, was referred to our unit for an electrophysiological study. For several years, she had had palpitations that would appear and disappear suddenly, and her baseline electrocardiogram was consistent with preexcitation (Figure 1). An echocardiogram performed previously was normal. During the electrophysiological study, an episode of atrial fibrillation was accidentally induced (Figure 2), but had no clinical impact (the patient reported no symptoms at the time).

Figure 1
Figure 2

On the basis of the patient's baseline electrocardiogram, what is your diagnosis?

  • 1.

    Conventional accessory pathway (bundle of Kent) in left free wall.

  • 2.

    Anteroseptal conventional accessory pathway (bundle of Kent).

  • 3.

    Fasciculoventricular pathway.

  • 4.

    Physiological atrioventricular conduction.

Suggest a solution to this ECG Contest at The answer will be published in the next issue (October 2016). #RetoECG.

Copyright © 2016. Sociedad Española de Cardiología
Revista Española de Cardiología (English Edition)

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