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Lack of agreement between bioimpedance and continuous thermodilution measurement of cardiac output in intensive care unit patients

Content Provider	Springer Nature : BioMed Central
Author	Barry, Ben N Mallick, Abhiram Bodenham, Andrew R Vucevic, Michael
Abstract	Background Bolus thermodilution is the standard bedside method of cardiac output measurement in the intensive care unit (ICU). The Baxter Vigilance monitor uses a modified thermodilution pulmonary artery catheter with a thermal filament to give a continuous read-out of cardiac output. This has been shown to correlate very well with both the 'gold standard' dye dilution method and the bolus thermodilution method. Bioimpedance cardiography using the Bomed NCCOM 3 offers a noninvasive means of continuous cardiac output measurement and has been shown to correlate with the bolus thermodilution method. We investigated the agreement between the continuous bioimpedance and continuous thermodilution methods, enabling acquisition of a large number of simultaneous measurements. Results A total of 2390 paired data points from seven patients were collected. There was no correlation (r2 = 0.01) between the methods. The precision (1.16 l/min/m2) of agreement between the Vigilance and the Bomed, assessed by the Bland-Altam method, was very poor although the bias (-0.16 l/min/m2) appeared fair. Conclusions The Bomed NCCOM 3 bioimpedance monitor shows poor agreement with the Baxter Vigilance continuous thermodilution monitor in a group of general ICU patients and cannot be recommended for cardiac output monitoring in this situation.
Related Links	https://ccforum.biomedcentral.com/counter/pdf/10.1186/cc106.pdf
Ending Page	4
Page Count	4
Starting Page	1
File Format	HTM / HTML
ISSN	13648535
DOI	10.1186/cc106
Journal	Critical Care
Issue Number	2
Volume Number	1
Language	English
Publisher	BioMed Central
Publisher Date	1997-11-26
Access Restriction	Open
Subject Keyword	Intensive Critical Care Medicine Emergency Medicine measurement techniques impedance cardiography thermodilution monitoring cardiac output
Content Type	Text
Resource Type	Article
Subject	Critical Care and Intensive Care Medicine
Journal Impact Factor	8.8/2023
5-Year Journal Impact Factor	10.4/2023

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