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Vol. 71. Issue 3.
Pages 206 (March 2018)
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Vol. 71. Issue 3.
Pages 206 (March 2018)
ECG Contest
DOI: 10.1016/j.rec.2017.09.018
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ECG, March 2018
ECG de marzo de 2018
Marc Figueras-Colla,b,
Corresponding author

Corresponding author:
, Nuria Rivas-Gándarac, Ferran Rosés-Noguera,c,d
a Servicio de Cardiología Pediátrica, Hospital Universitari Vall d’Hebron, Universitat Autònoma de Barcelona, Barcelona, Spain
b Servicio de Cardiología Pediátrica, Hospital Universitari Dr. Josep Trueta, Universitat de Girona, Girona, Spain
c Unidad de Arritmias, Servicio de Cardiología, Hospital Universitari Vall d’Hebron, Barcelona, Spain
d Paediatric Cardiology Department, Royal Brompton Hospital, London, United Kingdom
Related content
Rev Esp Cardiol. 2018;71:29510.1016/j.rec.2017.09.019
Marc Figueras-Coll, Nuria Rivas-Gándara, Ferran Rosés-Noguer
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An 11-year-old boy with no history of interest had experienced 4 episodes of palpitations in the previous year and a half. The first 3 of these were short-lived and resolved spontaneously. In the fourth, he attended his local hospital, where the electrocardiogram shown in Figure 1 was recorded. The tachycardia resolved abruptly with vagal maneuvers. Three weeks later, a resting electrocardiogram was recorded (Figure 2). Echocardiography showed mild-moderate tricuspid valve regurgitation, with the regurgitation jet originating from the septal leaflet. The patient was referred to the arrhythmias unit of his referral hospital.

Figure 1
Figure 2

What is the most likely diagnosis?

  • 1.

    Ventricular tachycardia originating in the right ventricular outflow tract.

  • 2.

    Sinus tachycardia with frequency-dependent left bundle branch block.

  • 3.

    Left posterior fascicular ventricular tachycardia.

  • 4.

    Antidromic supraventricular tachycardia with Mahaim fibers connecting the right atrium and ventricle.

Submit your diagnosis to this ECG Contest at The diagnosis will follow in the next issue (April 2018). #RetoECG.

Copyright © 2017. Sociedad Española de Cardiología
Revista Española de Cardiología (English Edition)

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