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一名胸痛患者左束支传导阻滞时的窄QRS波群

Narrow QRS complexes within left bundle branche block in a patient with chest pain.

作者信息

Tomcsányi János, Somlói Mikós, Wellens Hein

机构信息

Department of Cardiology, Buda Hospital of the Hospitaller Order of Saint John of God, Budapest, Hungary.

Department of Cardiology, Buda Hospital of the Hospitaller Order of Saint John of God, Budapest, Hungary.

出版信息

J Electrocardiol. 2020 Sep-Oct;62:36-38. doi: 10.1016/j.jelectrocard.2020.07.019. Epub 2020 Aug 8.

DOI:10.1016/j.jelectrocard.2020.07.019
PMID:32805545
Abstract

We present the case of a patient with chest pain, palpitations, atrial fibrillation, left bundle branch block (LBBB) and occasional early narrow QRS complexes. An intracardiac study revealed rate-dependent LBBB with additional hidden rate-dependent slowing in the contralateral bundle branch, resulting in normalization of the early conducted QRS complexes.

摘要

我们报告一例有胸痛、心悸、心房颤动、左束支传导阻滞（LBBB）及偶尔出现的早期窄QRS波群的患者。心内研究显示为频率依赖性LBBB，对侧束支存在额外的隐匿性频率依赖性减慢，导致早期下传的QRS波群正常化。

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