Unusual response to His-synchronous ventricular stimulation during a supraventricular tachycardia: Atrial advancement with or without resetting?

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Date

2022

Author

Merovci, Idriz
Gülcü, Oktay
Tunçez, Abdullah
Kara, Meryem
Özcan Çetin, Elif Hande
Yüksekkaya, Baran
Ekici, Ertan
Korkmaz, Ahmet
Özeke, Özcan
Çay, Serkan
Özcan, Fırat
Aras, Dursun
Topaloğlu, Serkan

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Merovci, I., Gülcü, O., Tunçez, A., Kara, M., Özcan Çetin, E. H., Yüksekkaya, B. ... Topaloğlu, S. (2022). Unusual response to His-synchronous ventricular stimulation during a supraventricular tachycardia: Atrial advancement with or without resetting? Journal of Cardiovascular Electrophysiology, 33(10), 2217-2219. https://doi.org/10.1111/jce.15649

Abstract

A59‐year‐old man underwent a diagnostic electrophysiology studybecause of rapid palpitations and documented supraventriculartachycardia (SVT) unresponsive to metoprolol therapy. His 12‐leadelectrocardiogram was normal. Baseline atrio‐His and His‐ventricularintervals measured 48 and 48 ms, respectively. Programmed atrialextrastimulation using single atrial extrastimuli repeatedly induced hisSVT. The response to His refractory ventricular extra stimulations(Hr‐VESs) is shown in Figure1. Based on the information, what arethe mechanisms of his tachycardia and apparently discordantresponses?

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Source

Journal of Cardiovascular Electrophysiology

Volume

33

Issue

10

URI

https://doi.org/10.1111/jce.15649
https://hdl.handle.net/20.500.12511/10115

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