即使在新生儿中也存在心率的时间不可逆性吗?

2014 8th Conference of the European Study Group on Cardiovascular Oscillations (ESGCO) Pub Date : 2014-05-25 DOI:10.1109/ESGCO.2014.6847496

B. Czippelova, L. Chladekova, Z. Uhrikova, M. Zibolen, K. Javorka, M. Javorka

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引用次数: 2

摘要

我们的研究目的是验证即使在新生儿中心率振荡是否存在时间不可逆性。计算20例健康新生儿心率信号的多尺度不可逆性指数(Porta指数P%、Guzik指数G%和Ehlers指数E)。通过替代数据分析，评估了系统非线性中不可逆性的存在及其成因。结果与年轻人心率信号的不可逆性分析进行了比较。替代数据分析显示，该系列的不对称性质已经存在于新生儿年龄。此外，新生儿的Porta不可逆性指数P%明显高于成人，这表明新生儿的交感神经-迷走神经平衡向交感神经活动转变。替代数据分析的结果表明，在新生儿组和成人组的大多数记录中存在与心血管控制系统相关的时间不可逆性。

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Is the time irreversibility of heart rate present even in newborns?

The aim of our research was to verify if the time irreversibility of heart rate oscillations exists even in the newborns. Multiscale irreversibility indices (Porta's index P%, Guzik index G% and Ehlers index E) of the heart rate signals were computed in 20 healthy neonates. The presence of irreversibility and its origin in system nonlinearity was assessed by surrogate data analysis. The results were compared to irreversibility analysis of young adult heart rate signals. Surrogate data analysis revealed asymmetrical nature of the series present already in the neonatal age. Moreover Porta's irreversibility index P% was significantly higher in newborns compared to adults indicating a shift in the sympatho-vagal balance in newborns towards sympathetic activity. The results of surrogate data analysis suggest an existence of the cardiovascular control system related time irreversibility in the majority of the recordings in both neonatal and adult groups.

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2014 8th Conference of the European Study Group on Cardiovascular Oscillations (ESGCO)

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