• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>WSEAS Transactions on Signal Processing >Review: Nonlinear Techniques for Analysis of Heart Rate Variability
【24h】

Review: Nonlinear Techniques for Analysis of Heart Rate Variability

机译：回顾：心率变异分析的非线性技术

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Heart rate variability (HRV) is a measure of the balance between sympathetic mediators of heart rate that is the effect of epinephrine and norepinephrine released from sympathetic nerve fibres acting on the sino-atrial and atrio-ventricular nodes which increase the rate of cardiac contraction and facilitate conduction at the atrio-ventricular node and parasympathetic mediators of heart rate that is the influence of acetylcholine released by the parasympathetic nerve fibres acting on the sino-atrial and atrio-ventricular nodes leading to a decrease in the heart rate and a slowing of conduction at the atrio-ventricular node. Sympathetic mediators appear to exert their influence over longer time periods and are reflected in the low frequency power (LFP) of the HRV spectrum (between 0.04Hz and 0.15 Hz). Vagal mediators exert their influence more quickly on the heart and principally affect the high frequency power (HFP) of the HRV spectrum (between 0.15Hz and 0.4 Hz). Thus at any point in time the LFP:HFP ratio is a proxy for the sympatho-vagal balance. Thus HRV is a valuable tool to investigate the sympathetic and parasympathetic function of the autonomic nervous system. Study of HRV enhance our understanding of physiological phenomenon, the actions of medications and disease mechanisms but large scale prospective studies are needed to determine the sensitivity, specificity and predictive values of heart rate variability regarding death or morbidity in cardiac and non-cardiac patients. This paper presents the linear and nonlinear to analysis the HRV.
机译：心率变异性（HRV）是心率同情介质之间平衡的衡量标准，这是肾上腺素和去甲肾上腺素从作用于中心房和天堂 - 心室节点的交感神经纤维释放的效果，这增加了心脏收缩率和促进心房的心率和副交感神经介质的传导，这是副交感神经纤维作用于中心房和风险性心室节点的乙酰胆碱的影响，这导致心率下降和传导放缓在Atrio-anyriculy节点。交感神经调解器似乎施加对较长时间段的影响，并反映在HRV光谱的低频功率（LFP）中（0.04Hz和0.15Hz之间）。迷进调解器在心脏上更快地施加影响，并主要影响HRV光谱的高频功率（HFP）（0.15Hz和0.4Hz之间）。因此，在任何时间点，LFP：HFP比率是同情迷走平衡的代理。因此，HRV是一种有价值的工具，用于研究自主神经系统的交感神经和副交感神经功能。 HRV研究提高了我们对生理现象的理解，药物和疾病机制的作用，但需要大规模前瞻性研究，以确定心脏和非心脏病患者死亡或发病率的敏感性，特异性和预测值。本文介绍了分析HRV的线性和非线性。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号