库梅尔征反转：其机制是什么？

Coumel's sign reversed: What is the mechanism?

作者信息

Bootla Dinakar, Jain Ashish, Mittal Gaurav Kumar, Selvaraj Raja J

机构信息

Department of Cardiology, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India.

出版信息

Indian Pacing Electrophysiol J. 2022 Mar-Apr;22(2):115-117. doi: 10.1016/j.ipej.2021.11.007. Epub 2021 Nov 24.

DOI:10.1016/j.ipej.2021.11.007

PMID:34826604

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8981158/

Abstract

A patient presented with documented narrow QRS tachycardia. During electrophysiological study, he has orthodromic reciprocating tachycardia with atrial activation consistent with left free wall accessory pathway. With induction of tachycardia, beats with LBBB morphology have shorter cycle length than those with narrow QRS. What is the mechanism?

摘要

一名患者被记录为窄QRS波心动过速。在电生理研究期间，他发生了顺向型房室折返性心动过速，心房激动与左游离壁旁路一致。诱发心动过速时，呈左束支传导阻滞（LBBB）形态的搏动的周期长度比窄QRS波搏动的周期长度短。其机制是什么？