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Vol. 69. Issue 4.
Pages 441 (April 2016)
ECG Contest
DOI: 10.1016/j.rec.2015.09.018
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Response to ECG, March 2016
Respuesta al ECG de marzo de 2016
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Gustavo Tortajada
Servicio de Electrofisiología, Centro Cardiovascular de Casa de Galicia y Revista Uruguaya de Cardiología, Montevideo, Uruguay
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Rev Esp Cardiol. 2016;69:32510.1016/j.rec.2015.09.017
Gustavo Tortajada
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At first, the tachycardia was regular with a narrow QRS and a retrograde P-wave at the end of the QRS complex. Then, after spontaneous interruption, there was a preexcited first sinus beat, a pattern characteristic of left-sided accessory pathway. This was followed by normal sinus rhythm, without preexcitation. The diagnosis was orthodromic tachycardia mediated by a left-sided accessory pathway with bidirectional conduction and intermittent preexcitation. Ablation of the accessory pathway was performed.

Copyright © 2015. Sociedad Española de Cardiología
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