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伴有西北轴的右束支传导阻滞性心动过速。机制是什么？

RBBB tachycardia with north-west axis. What is the mechanism?

作者信息

Nair Krishna Kumar Mohanan, Namboodiri Narayanan, Abhilash Sreevilasam Pushpangadhan, Valaparambil Ajitkumar

机构信息

Department of Cardiology, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, Kerala, India.

Department of Cardiology, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, Kerala, India.

出版信息

J Electrocardiol. 2018 Jan-Feb;51(1):121-125. doi: 10.1016/j.jelectrocard.2017.08.036. Epub 2017 Sep 1.

DOI:10.1016/j.jelectrocard.2017.08.036
PMID:29021090
Abstract

RBBB tachycardia with NW axis is considered to be VT unless proved otherwise. However underlying conduction system disease can produce electrocardiographic patterns suggestive of bundle branch block with extreme left axis which can cause difficulty in differentiating VT from SVT as in this case.

摘要

伴西北轴的右束支传导阻滞性心动过速除非能证伪否则被视为室性心动过速。然而，潜在的传导系统疾病可产生提示极端左轴束支传导阻滞的心电图模式，这可能导致像本例一样难以区分室性心动过速与室上性心动过速。

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