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Critical Care
Published in: Critical Care 1/2011

Open Access 01-02-2011 | Poster presentation

A clinical pilot study to evaluate the correlation between pulse wave velocity and cardiac output during elective surgery

Authors: D Cain, S Harris

Published in: Critical Care | Special Issue 1/2011

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Excerpt

Pulse wave velocity (PWV) is defined as the speed of conduction of a pressure wave generated by cardiac systole through the arterial tree. It may be non-invasively estimated from the pulse transit time that is measured as the interval between the R wave on an electrocardiogram and first inflexion point of the paired plethysmographic wave recorded from a finger pulse oximeter [1]. Within a simple two-component Windkessel model of the arterial system, PWV is proportional to the square root of arterial elastance [2]. Elastance is defined as the ratio of pulse pressure (PP) to stroke volume (SV). PWV might therefore provide a non-invasive estimate of cardiac output. …
Literature
1.
2.
Bramwell J, et al.: Velocity of transmission of the pulse wave. Lancet 1922, 891-893.
Metadata
Title
A clinical pilot study to evaluate the correlation between pulse wave velocity and cardiac output during elective surgery
Authors
D Cain
S Harris
Publication date
01-02-2011
Publisher
BioMed Central
Published in
Critical Care / Issue Special Issue 1/2011
Electronic ISSN: 1364-8535
DOI
https://doi.org/10.1186/cc9480

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