Cui Shengzhong, Huang Xiaolin, Ning Xinbao
Department of Physiology, Nanjing Medical University, Nanjing 210029, China.
Sheng Wu Yi Xue Gong Cheng Xue Za Zhi. 2010 Dec;27(6):1206-10.
The non-stationary interference with the analysis parameters of short-term heart rate variability (HRV) has been studied. The results show that although all considered parameters fluctuate with the lapse of time, only HFnorm and sample entropy (SE) correlate significantly with non-stationary interference. Therefore, the low frequency fluctuations of HRV contain not only the non-stationary interference, but also the intrinsic cardiac dynamic characteristics. Specially, the results of the base-scale entropy (BE) analysis of three groups of people, and of three kinds of noises are contrasted. It is shown that, at the expense of outstanding anti-nonstationarity, BE fails to depict the long range correlation of HRV.
已对短期心率变异性（HRV）分析参数的非平稳干扰进行了研究。结果表明，尽管所有考虑的参数都随时间波动，但只有HFnorm和样本熵（SE）与非平稳干扰显著相关。因此，HRV的低频波动不仅包含非平稳干扰，还包含心脏的内在动态特征。特别地，对比了三组人群以及三种噪声的基本尺度熵（BE）分析结果。结果表明，BE虽然具有出色的抗非平稳性，但未能描述HRV的长程相关性。
