Impact of changes in systemic vascular resistance on a novel non-invasive continuous cardiac output measurement system based on pulse wave transit time: a report of two cases

被引：0
作者：
Hironori Ishihara
Masato Tsutsui
机构：
[1] Kuroishi-Kosei Hospital,Department of Anesthesiology
[2] National Defense Medical College,Department of Anesthesiology
来源：
Journal of Clinical Monitoring and Computing | 2014年 / 28卷
关键词：
Cardiac output; Measurement technique; Pulse wave transit time; Systemic vascular resistance;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The inaccuracy of arterial waveform analysis for measuring continuos cardiac output (CCO) associated with changes in systemic vascular resistance (SVR) has been well documented. A new non-invasive continuous cardiac output monitoring system (esCCO) mainly utilizing pulse wave transit time (PWTT) in place of arterial waveform analysis has been developed. However, the trending ability of esCCO to measure cardiac output during changes in SVR remains unclear. After a previous multicenter study on esCCO measurement, we retrospectively identified two cases in which apparent changes in SVR developed in a short period during data collection. In each case, the trending ability of esCCO to measure cardiac output and time component of PWTT were analyzed. Recorded data suggest that the time component of PWTT may have a significant impact on the accuracy of estimating stroke volume during changes in SVR. However, further prospective clinical studies are required to test this hypothesis.
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页码：423 / 427
页数：4
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