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BMC Anesthesiology
Published in: BMC Anesthesiology 1/2018

Open Access 01-12-2018 | Research article

Non-invasive cardiac output measurement with electrical velocimetry in patients undergoing liver transplantation: comparison of an invasive method with pulmonary thermodilution

Authors: De-Jie Wang, I-Shan Lee, An-Hsun Chou, Chun-Yu Chen, Pei-Chi Ting, Yun-Hui Teng, Jr-Rung Lin, Hsin-I Tsai

Published in: BMC Anesthesiology | Issue 1/2018

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Abstract

Background

The goal of this study was to evaluate the accuracy and interchangeability between continuous cardiac output (CO) measured by electrical velocimetry (COEv) and continuous cardiac output obtained using the pulmonary thermodilution method (COPAC) during living donor liver transplantation (LDLT).

Method

Twenty-three patients were enrolled in this prospective observational study. CO was recorded by both two methods and compared at nine specific time points. The data were analyzed using correlation coefficients, Bland-Altman analysis for the percentage errors, and the concordance rate for trend analysis using a four-quadrant plot.

Results

In total, 207 paired datasets were recorded during LDLT. CO data were in the range of 2.8–12.7 L/min measured by PAC and 3.4–14.9 L/min derived from the EV machine. The correction coefficient between COPAC and COEv was 0.415 with p < 0.01. The 95% limitation agreement was − 5.9 to 3.4 L/min and the percentage error was 60%. The concordance rate was 56.5%.

Conclusions

The Aesculon™ monitor is not yet interchangeable with continuous thermodilution CO monitoring during LDLT.

Trial registration

The study was approved by the Institutional Review Board of Chang Gung Medical Foundation in Taiwan (registration number: 201600264B0).
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Metadata
Title
Non-invasive cardiac output measurement with electrical velocimetry in patients undergoing liver transplantation: comparison of an invasive method with pulmonary thermodilution
Authors
De-Jie Wang
I-Shan Lee
An-Hsun Chou
Chun-Yu Chen
Pei-Chi Ting
Yun-Hui Teng
Jr-Rung Lin
Hsin-I Tsai
Publication date
01-12-2018
Publisher
BioMed Central
Published in
BMC Anesthesiology / Issue 1/2018
Electronic ISSN: 1471-2253
DOI
https://doi.org/10.1186/s12871-018-0600-y

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