隐蔽结节心室通路的递减特性

IF 2.6 3区医学 Q2 CARDIAC & CARDIOVASCULAR SYSTEMS Journal of Cardiovascular Electrophysiology Pub Date : 2024-09-10 DOI:10.1111/jce.16430

Koumei Onuki MD, Koichi Nagashima MD, PhD, Yasuharu Matsunaga-Lee MD, Masato Fukunaga MD, Kenichi Hiroshima MD, Kenji Ando MD, Melvin M. Scheinman MD

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引用次数: 0

摘要

方法和结果在短程 RP 室上性心动过速中，His 难复性室性早搏收缩（PVC）持续终止心动过速，且在 PVC 结束后未立即捕获心房。结论这些观察结果可诊断为慢速房室结复律性心动过速（AVNRT），并伴有旁观者隐匿性室性早搏，其原因可以用室性早搏本身的递减特性来解释；室性早搏的过早发生导致室性早搏的递减传导增加，从而导致 AVNRT 在一个周期后终止。

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Decremental properties of a concealed nodoventricular pathway

Introduction

The decremental properties of the nodoventricular pathway (NVP) are uncertain.

Methods and Results

During short RP supraventricular tachycardia, a His-refractory premature ventricular contraction (PVC) consistently terminated the tachycardia without atrial capture immediately after the PVC. Whereas a slightly earlier PVC failed to reset the subsequent His but terminated the tachycardia without atrial capture one cycle later.

Conclusion

These observations are diagnostic of slow-fast atrioventricular nodal reentrant tachycardia (AVNRT) with a bystander concealed-NVP and can be explained by decremental properties in the NVP itself; greater prematurity of the PVC resulted in more decremental conduction over the NVP, causing the AVNRT termination one cycle later.

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来源期刊

Journal of Cardiovascular Electrophysiology 医学-心血管系统

CiteScore

5.20

自引率

14.80%

发文量

433

审稿时长

3-6 weeks

期刊介绍： Journal of Cardiovascular Electrophysiology (JCE) keeps its readership well informed of the latest developments in the study and management of arrhythmic disorders. Edited by Bradley P. Knight, M.D., and a distinguished international editorial board, JCE is the leading journal devoted to the study of the electrophysiology of the heart.