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长RP心动过速期间对自发和诱发的希氏束不应期室性早搏的反应：机制是什么？

Response to spontaneous and induced His refractory ventricular premature beats during long RP tachycardia: What is the mechanism?

作者信息

Kakarla Saikiran, Abhilash Sreevilasam P, Vijay Jyothi, Namboodiri Narayanan

机构信息

Division of Cardiac Electrophysiology Sree Chitra Tirunal Institute for Medical Sciences and Technology Thiruvananthapuram India.

出版信息

J Arrhythm. 2023 Nov 23;40(1):148-149. doi: 10.1002/joa3.12958. eCollection 2024 Feb.

DOI:10.1002/joa3.12958
PMID:38333393
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10848587/
Abstract

This electrophysiology tracing demonstrates a graded postexcitation response of the retrograde limb of an orthodromic reentrant tachycardia circuit with varying His refractory VPB coupling intervals, which reiterates the decrementally conducting retrograde limb of the tachycardia circuit.

摘要

该电生理描记图显示了在希氏束不应期室性早搏耦合间期不同的情况下，顺向折返性心动过速环路逆向支的分级兴奋后反应，这再次证实了心动过速环路逆向支的递减传导。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5384/10848587/8b0a6a5f9602/JOA3-40-148-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5384/10848587/8b0a6a5f9602/JOA3-40-148-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5384/10848587/8b0a6a5f9602/JOA3-40-148-g002.jpg

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J Arrhythm. 2023 Nov 23;40(1):148-149. doi: 10.1002/joa3.12958. eCollection 2024 Feb.
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本文引用的文献

1
The various manifestations of concealed nodofascicular/nodoventricular bypass tracts.隐匿性结-束支/结-心室旁道的各种表现。
Heart Rhythm. 2020 Aug;17(8):1280-1290. doi: 10.1016/j.hrthm.2020.03.026. Epub 2020 Apr 5.
2
Electrophysiological features differentiating the atypical atrioventricular node-dependent long RP supraventricular tachycardias.鉴别不典型房室结依赖型长 RP 室上性心动过速的电生理特征。
Circ Arrhythm Electrophysiol. 2013 Jun;6(3):597-605. doi: 10.1161/CIRCEP.113.000187. Epub 2013 Apr 29.