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Vol. 70. Issue 11.
Pages 1008 (November 2017)
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Vol. 70. Issue 11.
Pages 1008 (November 2017)
ECG Contest
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ECG, November 2017
ECG de noviembre de 2017
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Virginia Ruiz Pizarro
Corresponding author
virginia.ruizpizarro@gmail.com

Corresponding author:
, Carlos Nicolás Pérez García, Victoria Cañadas Godoy
Instituto Cardiovascular, Hospital Clínico San Carlos, Madrid, Spain
Related content
Rev Esp Cardiol. 2017;70:113810.1016/j.rec.2017.04.022
Virginia Ruiz Pizarro, Carlos Nicolás Pérez García, Victoria Cañadas Godoy
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An 86-year-old woman with a single-chamber pacemaker (VVIR mode with lower rate limit of 70 bpm, 10% hysteresis, and accelerometer sensor with upper rate of 130 bpm) presented to an emergency room in an asymptomatic state after high heart rates were detected on taking a blood pressure measurement. An electrocardiogram was recorded at rest (Figure). The cardiologist was consulted on suspicion of device failure.

Figure
(0.25MB).

What do you think was the diagnosis?

  • 1.

    The pacemaker sensor was working normally.

  • 2.

    The pacemaker was working normally; what we see is a rate damping algorithm.

  • 3.

    The patient had endless-loop tachycardia.

  • 4.

    This was an automatic search for pacing threshold.

Suggest a diagnosis to this ECG Contest at: http://www.revespcardiol.org/es/electroreto/70/11. The answer will be published in the next issue (December 2017). #EKGchallenge.

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

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