University of Surrey

Test tubes in the lab Research in the ATI Dance Research

Measuring the cardiac output in acute emergency admissions: use of the non-invasive ultrasonic cardiac output monitor (USCOM) with determination of the learning curve and inter-rater reliability

Hodgson, L.E., Venn, R., Forni, Lui G., Samuels, T.L. and Wakeling, H.G. (2016) Measuring the cardiac output in acute emergency admissions: use of the non-invasive ultrasonic cardiac output monitor (USCOM) with determination of the learning curve and inter-rater reliability Journal of the Intensive Care Society, 17 (2). pp. 122-128.

Full text not available from this repository.

Abstract

Traditionally, assessment of the cardiac output has been limited to theatre or the intensive care unit. However, non-invasive cardiac output estimation is now readily available, and its application may have wider benefit in the emergency setting. The non-invasive ultrasonic cardiac output monitor (USCOM) was investigated to determine its learning curve and inter-rater reliability. Four trainee operators each performed stroke volume measurements on 25 volunteers, compared to an experienced operator pre- and post-passive leg raise. Inter-rater reliability was then assessed on 24 acute emergency in-patients. Mean percentage difference in stroke volume decreased from 19% (95% confidence intervals 14–23) across volunteers 1–5, to 6% (4–8) for the last 5 volunteers scanned. Consequently, on acute emergency in-patients, excellent inter-rater reliability (Lin’s concordance correlation coefficient (ρc) 0.96 (0.92–0.98)) and agreement of a change ≥10% in stroke volume following passive leg raise on 23/24 cases were found. Following a training period of less than 5 h, USCOM stroke volume measurements demonstrated excellent inter-rater reliability.

Item Type: Article
Divisions : Faculty of Health and Medical Sciences > School of Biosciences and Medicine
Authors :
NameEmailORCID
Hodgson, L.E.
Venn, R.
Forni, Lui G.l.forni@surrey.ac.uk
Samuels, T.L.
Wakeling, H.G.
Date : 1 May 2016
DOI : 10.1177/1751143715619186
Copyright Disclaimer : Copyright The Intensive Care Society 2015
Uncontrolled Keywords : Measurement techniques; Cardiac output; Equipment; Ultrasound machines
Depositing User : Diane Maxfield
Date Deposited : 01 Oct 2019 10:14
Last Modified : 01 Oct 2019 10:14
URI: http://epubs.surrey.ac.uk/id/eprint/852746

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year


Information about this web site

© The University of Surrey, Guildford, Surrey, GU2 7XH, United Kingdom.
+44 (0)1483 300800