CIRCADIAN-RHYTHM OF CARDIAC-OUTPUT, PERIPHERAL VASCULAR-RESISTANCE, AND RELATED VARIABLES BY A BEAT-TO-BEAT MONITORING
CIRCADIAN-RHYTHM OF CARDIAC-OUTPUT, PERIPHERAL VASCULAR-RESISTANCE, AND RELATED VARIABLES BY A BEAT-TO-BEAT MONITORING
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DOI：
10.3109/07420529309064484
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发表时间：
1993-02-01
影响因子：
2.8
通讯作者：
LEONE, G
中科院分区：
文献类型：
--
作者：
CUGINI, P;DIPALMA, L;LEONE, G
本研究旨在探讨每搏输出量、心输出量和外周血管阻力的24小时模式沿着其他相关变量，如左心室射血时间、射血速度指数、胸腔液体指数、心率和血压。该研究在12名临床健康受试者中进行，通过使用与自动血压计记录相关的胸电生物阻抗技术进行无创逐搏监测。通过时间生物学程序对时间数据序列进行分析。结果记录了所有研究变量的昼夜节律的发生，并与心输出量和外周血管阻力的心跳至心跳生物周期性相关。时间量化的调查变量可能是有用的，更好地了解心血管装置的时间生理学。
This study aimed to explore the 24-h patterns of stroke volume, cardiac output, and peripheral vascular resistance along with other correlated variables, such as left ventricular ejection time, ejection velocity index, thoracic fluid index, heart rate, and blood pressure. The study was performed on 12 clinically healthy subjects by means of a noninvasive beat-to-beat monitoring using the thoracic electric bioimpedance technique associated with the automated sphygmomanometric recording. Time data series were analyzed by means of chronobiological procedures. The results documented the occurrence of a circadian rhythm for all the variables investigated, giving relevance to the beat-to-beat bioperiodicity of cardiac output and peripheral vascular resistance. Temporal quantification of the investigated variables may be useful for a better insight of the chronophysiology of the cardiovascular apparatus.