Poincare plot indexes of heart rate variability: Relationships with other nonlinear variables
Poincare plot indexes of heart rate variability: Relationships with other nonlinear variables
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DOI：
10.1016/j.autneu.2013.05.004
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发表时间：
2013-10-01
影响因子：
2.7
通讯作者：
Godoy, Moacir Fernandes
中科院分区：
文献类型：
--
作者：
Hoshi, Rosangela Akemi;Pastre, Carlos Marcelo;Godoy, Moacir Fernandes
用于心率变异性分析的庞加莱图是一种被认为是几何和非线性的技术，其可用于通过将每对R-R间期的值表示到描述系统演变的简化相空间中来评估心率变异性的动态。本研究的目的是验证在疾病或健康状态下，SD 1、SD 2和SD 1/SD 2比值与心率变异性非线性指标之间是否存在某种相关性。对114例冠心病患者和65例健康人进行仰卧位30 min心率记录，分析指标包括：SDI、SD 2、SD 1/SD 2、样本熵、李雅普诺夫指数、赫斯特指数、相关维数、去趋势波动分析、SDNN、RMSSD、LF、HF和LF/HF比值。用斯皮尔曼等级相关检验和回归分析检验SDI、SD 2和SD 1/SD 2指标与其他变量的相关系数。我们验证了两组中SD 1/SD 2指数与HE和DFA（α 1）之间的高度相关性，表明该比值可用作替代变量。(C)2013爱思唯尔有限公司版权所有。
The Poincare plot for heart rate variability analysis is a technique considered geometrical and non-linear, that can be used to assess the dynamics of heart rate variability by a representation of the values of each pair of R-R intervals into a simplified phase space that describes the system's evolution. The aim of the present study was to verify if there is some correlation between SD1, SD2 and SD1/SD2 ratio and heart rate variability nonlinear indexes either in disease or healthy conditions. 114 patients with arterial coronary disease and 65 healthy subjects underwent 30 minute heart rate registration, in supine position and the analyzed indexes were as follows: SDI, SD2, SD1/SD2, Sample Entropy, Lyapunov Exponent, Hurst Exponent, Correlation Dimension, Detrended Fluctuation Analysis, SDNN, RMSSD, LF, HF and LF/HF ratio. Correlation coefficients between SDI, SD2 and SD1/SD2 indexes and the other variables were tested by the Spearman rank correlation test and a regression analysis. We verified high correlation between SD1/SD2 index and HE and DFA (alpha 1) in both groups, suggesting that this ratio can be used as a surrogate variable. (C) 2013 Elsevier B.V. All rights reserved.