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ASSESSMENT OF HEART RATE VARIABILITY IN PATIENT UNDERGOING VASCULAR SURGERY

接受血管手术的患者心率变异性的评估

基本信息

批准号：
07671653
负责人：
KOMATSU Toru
金额：
$ 1.54万
依托单位：
NAGOYA UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
1995
资助国家：
日本
起止时间：
1995 至 1996
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07671653/
关键词：
heart rate variability spectral analysis nonlinear analysis chaos vascular surgery autonomic nervous system homeostasis Surgical Stress 末梢血管外科術前評価

项目摘要

The aim of this study was to examine whether simultaneous analysis of nonlinear and linear measures revealed different characteristics of heart rate variability (HRV) during perioperative period in patients undergoing vascular surgery. Low frequency, high frequency and total power of heart rate variability were decreased until 7th postoperative day as compared to control. The nonlinear measures changed immediate postoperative period, returning to control level within one week. Simultaneous analysis of nonlinear and linear measures of HRV revealed different patterns of alterations in status of dynamic cardiovascular homeostasis and autonomic nervous system after major vascular surgery. Using dimensional analysis, we heve shown that significant reduction occurred both the embedding and correlation of dimensions in HRV only during immediate postoperative period. Whereas, decreases in RR variance and all components of the spectral power of HRV persisted for one weak after major vascular surgery. Dimensional analysis revealed several distinct subcategories of patterns of alterations in HRV after major vascular surgery, which may correspond to different physiologic atates that are indistinguishable by simple atatistical analyzes, or the power spectrum of the time series of HRV.Non-linear and linear measures of HRV cannot be considered equivalent measures after major vascular surgery.

本研究的目的是检查是否同时分析非线性和线性措施显示不同的特点，心率变异性（HRV）在围手术期接受血管手术的患者。与对照组相比，术后第7天心率变异性的低频、高频和总功率降低。非线性测量值在术后即刻发生变化，在一周内恢复到对照水平。HRV的非线性和线性措施的同时分析揭示了不同的模式的改变状态的动态心血管稳态和自主神经系统的大血管手术后。通过量纲分析，我们发现，只有在术后即刻，HRV的维数嵌入和维数相关性才显著降低。然而，在大血管手术后，RR方差和HRV谱功率的所有分量的下降持续存在。量纲分析揭示了几个不同的子类别的变化模式，在HRV大血管手术后，这可能对应于不同的生理atates是难以区分的简单atatistical分析，或功率谱的时间序列的HRV。非线性和线性的措施，HRV不能被视为等效措施后，大血管手术。