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| 麻醉期心率变异性的复杂性研究 | |
| 引用本文： | 叶志前,周庆利,刘晓芳,周海燕. 麻醉期心率变异性的复杂性研究[J]. 生物医学工程学杂志, 2004, 21(4): 554-557 |
| 作者姓名： | 叶志前 周庆利 刘晓芳 周海燕 |
| 作者单位： | 1. 浙江大学,临床工程研究所,杭州,310006 2. 浙江大学,医学院附属妇产科医院,杭州,310006 3. 浙江大学,医学院附属第二医院麻醉科,杭州,310009 |
| 基金项目： | 国家自然科学基金资助项目 ( 60 2 710 11) |
| 摘 要： | 采用近似熵、复杂度指标分析 38例受试者麻醉期心率变异性信号的复杂性。结果表明 :麻醉期心搏周期有显著性的复杂性变化 ,麻醉状态下心率变异性的复杂度 Kc、C1 、近似熵 (P<0 .0 5 )均显著低于清醒状态。进一步将麻醉期心率变异性信号分解为 1/f部分和非 1/f部分 ,并分析这两部分的复杂性。结果表明将心率变异性信号分解可显著提高复杂性分析指标的灵敏度。 |
| 关 键 词： | 心率变异性 麻醉深度 复杂性分析 |
Investigating the Complexity of Heart Rate Variability During Anesthesia |
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| Ye Zhiqian Zhou Qingli Liu Xiaofang Zhou Haiyan. Investigating the Complexity of Heart Rate Variability During Anesthesia[J]. Journal of biomedical engineering, 2004, 21(4): 554-557 | |
| Authors: | Ye Zhiqian Zhou Qingli Liu Xiaofang Zhou Haiyan |
| Affiliation: | Institute of Clinical Engineering Zhejiang University, Hangzhou 310006, China. |
| Abstract: | By use of the complexity analysis indices (approximate entropy,complexity),the heart rate variability signals obtained from 38 subjects' ECG during anesthesia were analyzed. The results showed that there is an obvious chaos change of heart rate variability during anesthesia,both the complexity and approximate entropy of heart rate variability during anesthesia are evidently less than those during consciousness(P<0.05) . In this dissertation,we decompose the heart rate variability during anesthesia into 1/f part and non-fractal part,and then analyze these parts. The results reveal that the sensitivity of the complexity indices can be improved by decomposing the heart rate variability. |
| Keywords: | Heart rate variability Depth of anesthesia Analysis of complexity |
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