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Journal of Clinical Monitoring and Computing
Published in: Journal of Clinical Monitoring and Computing 4/2014

Open Access 01-08-2014 | Brief Report

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

Authors: Hironori Ishihara, Masato Tsutsui

Published in: Journal of Clinical Monitoring and Computing | Issue 4/2014

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Abstract

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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Metadata
Title
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
Authors
Hironori Ishihara
Masato Tsutsui
Publication date
01-08-2014
Publisher
Springer Netherlands
Published in
Journal of Clinical Monitoring and Computing / Issue 4/2014
Print ISSN: 1387-1307
Electronic ISSN: 1573-2614
DOI
https://doi.org/10.1007/s10877-013-9529-3

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