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Vol. 72. Issue 8.
Pages 675 (August 2019)
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Vol. 72. Issue 8.
Pages 675 (August 2019)
ECG Contest
DOI: 10.1016/j.rec.2018.08.016
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ECG, August 2019
ECG de agosto de 2019
Sofía Calero-Núñez
Corresponding author

Corresponding author:
, Víctor M. Hidalgo-Olivares, Jesús Fernando García-Sacristán Fernández
Unidad de Electrofisiología y Estimulación Cardiaca, Servicio de Cardiología, Complejo Hospitalario Universitario de Albacete, Albacete, Spain
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Rev Esp Cardiol. 2019;72:77810.1016/j.rec.2018.08.017
Sofía Calero-Núñez, Víctor M. Hidalgo-Olivares, Jesús Fernando García-Sacristán Fernández
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A 33-year-old woman, with no relevant personal or family history, was referred for electrophysiological study because of clinical manifestations in the past year consisting of frequent and paroxysmal palpitations not worsening with exercise. The ECG shown in the Figure 1 was recorded. A 24-hour electrocardiographic Holter study showed the presence of a regular narrow-QRS tachycardia most of the time.


What do you think was the most likely diagnosis?

  • 1.

    Focal tachycardia originating in the left superior pulmonary vein

  • 2.

    Typical slow-fast atrioventricular nodal reentry tachycardia

  • 3.

    Orthodromic reciprocating tachycardia via an accessory pathway with decremental conduction

  • 4.

    Inappropriate sinus tachycardia

Submit your answer to The solution will be published in the next issue (September 2019). #ECGChallenge #RetoECG.

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Revista Española de Cardiología (English Edition)

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