Daillet E, Lande G, Le Marec H
Clinique cardiologique et des maladies vasculaires, hôpital G. et R. Laennec, CHU de Nantes.
Arch Mal Coeur Vaiss. 1995 Apr;88(4 Suppl):551-3.
Under pathological conditions, the autonomic nervous system, which continually regulates cardiac function, may have adverse effects on pump function and electrical activation. The sinus rhythm is an indirect marker of the different components of the autonomic nervous system and changes in the heart rate reflect the permanent variation of vagal and sympathetic tone. Analysis of variability in the temporal or frequential domaines, provides information about the modulation of the different components of the autonomic nervous system. In the post-infarction period, studies have shown that the heart rate variability is an independent predictive factor of cardiovascular mortality. The data available in patients with cardiac failure is limited. There is a decrease in heart rate variability and this decrease seems to be associated with a higher risk.
在病理状态下，持续调节心脏功能的自主神经系统可能会对泵功能和电激活产生不利影响。窦性心律是自主神经系统不同组成部分的间接指标，心率变化反映了迷走神经和交感神经张力的持续变化。对时域或频域变异性的分析可提供有关自主神经系统不同组成部分调节的信息。在心肌梗死后时期，研究表明心率变异性是心血管死亡率的独立预测因素。心力衰竭患者的现有数据有限。心率变异性降低，这种降低似乎与更高的风险相关。
