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室上性心动过速发作前后心率变异的观察
引用本文:王家宁 胡大一. 室上性心动过速发作前后心率变异的观察[J]. 心电学杂志, 1996, 15(2): 69-70
作者姓名:王家宁 胡大一
作者单位:北京医科大学第一医院心内科,中华人民共和国农业部门诊部 100034、北京红十字朝阳医院心脏中心
摘    要:
分析21例SVT发作前后5min心率变异性旨在阐明植物神经系统异常在SVT发作中的作用。结果显示SVT发作前SDNN明显降低,LF、LFP、LF/HF明显升高,HF、HFP明显降低,LF/HF与SVT持续时间呈正相关(r=0.54,P<0.05 。)提示SVT发作前交感-迷走神经平衡向着交感神经张力增高,迷走神经张力消退的方向偏移,使SVT易于发作和持续。

关 键 词:室上性心动过速  心率变异性  植物神经系统

Study on heart rate variability before and after onset of supraventrlcular tachycardia
Wang Jia-ning,Hu Da-yi,Zhao Li,et al. Study on heart rate variability before and after onset of supraventrlcular tachycardia[J]. Journal of Electrocardiology(China), 1996, 15(2): 69-70
Authors:Wang Jia-ning  Hu Da-yi  Zhao Li  et al
Affiliation:Wang Jia-ning,Hu Da-yi,Zhao Li,et al,Department of Cardiology,First Teaching Hospital of Beijing Medical University,Beijing,100034
Abstract:
To elucidate role of autonomic nervous dysfunction during onset and progress of supraventricular tachycardia (SVT), heart rate variability was analyzed 5 min before and after onset of SVT in 21 episodes. Results were as follows, SDNN before onset decreased than that after onset of SVT, LF, LFP, LF/ HF increased remarkably, and HF, HFP decreased more before onset than after onset of SVT. There existed a positive correlationship between length of SVT and LF/HF before onset of SVT. These results suggested a shift of sympatho-vagal balance towards sympathetic activation and vagal withdrawal, favoring the occurrence and persistence of SVT.
Keywords:supraventricular tachycardia heart rate variability autonomic nervous system
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