open access

Vol 49, No 3 (2017)
Original and clinical articles
Published online: 2017-08-12
Submitted: 2016-12-17
Accepted: 2017-05-22
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Comparison of the ability of esCCO and Volume View to measure trends in cardiac output in patients undergoing cardiac surgery

Stephanie Dache, Nicolas Van Rompaey, Alexandre Joosten, Olivier Desebbe, Sarah Saxena, Frederic Vanden Eynden, Caroline Van Aelbrouck, Isabelle Huybrechts, Luc Van Obbergh, Luc Barvais
DOI: 10.5603/AIT.2017.0043
·
Anaesthesiol Intensive Ther 2017;49(3):175-180.

open access

Vol 49, No 3 (2017)
Original and clinical articles
Published online: 2017-08-12
Submitted: 2016-12-17
Accepted: 2017-05-22

Abstract

BACKGROUND: Cardiac output (CO) is a physiological variable that should be monitored during cardiac surgery. The purpose of this study was to assess the trending ability of two CO monitors, esCCO (Nihon Kohden™, Tokyo, Japan) and Volume View (VV) (Edwards Lifesciences, Irvine, USA).

METHODS: A total of 19 patients were included in the study. Before cardiopulmonary bypass (CPB), CO was measured simultaneously using both esCCO and VV devices before and after three CO-modifying manoeuvres (passive leg raise [PLR], the end expiratory occlusion test [EEOT] and positive end expiratory pressure [PEEP] at 10 cm H2O). Five CO values for esCCO and three for VV were averaged and compared during a one-minute period of time before and after each manoeuvre.

RESULTS: A total of 114 paired readings were collected. Median CO values were 4.3 L min-1 (IQR: 3.8; 5.2) and 3.8 L min-1 (IQR: 3.5; 4.5) for esCCO and VV, respectively. The precision error was 1.4% (95% CI:1.0–1.7) for esCCO and 2.2% (95% CI: 1.8–2.7) for VV. The bias between esCCO and VV values was normally distributed (P = 0.0596). Between esCCO and VV, the mean bias was +0.6 L min-1 with a Limit of Agreement (LOA) of –1.8 L min-1 and +3.0 L min-1. The concordance rate was 43% (95% CI: 29–58) between esCCO and VV.

CONCLUSION: Both single and trended measurements of CO using esCCO and VV were not in agreement. This large discrepancy leads one to the conclusion that any outcome study conducted with one of these devices cannot be applied to the other.

Abstract

BACKGROUND: Cardiac output (CO) is a physiological variable that should be monitored during cardiac surgery. The purpose of this study was to assess the trending ability of two CO monitors, esCCO (Nihon Kohden™, Tokyo, Japan) and Volume View (VV) (Edwards Lifesciences, Irvine, USA).

METHODS: A total of 19 patients were included in the study. Before cardiopulmonary bypass (CPB), CO was measured simultaneously using both esCCO and VV devices before and after three CO-modifying manoeuvres (passive leg raise [PLR], the end expiratory occlusion test [EEOT] and positive end expiratory pressure [PEEP] at 10 cm H2O). Five CO values for esCCO and three for VV were averaged and compared during a one-minute period of time before and after each manoeuvre.

RESULTS: A total of 114 paired readings were collected. Median CO values were 4.3 L min-1 (IQR: 3.8; 5.2) and 3.8 L min-1 (IQR: 3.5; 4.5) for esCCO and VV, respectively. The precision error was 1.4% (95% CI:1.0–1.7) for esCCO and 2.2% (95% CI: 1.8–2.7) for VV. The bias between esCCO and VV values was normally distributed (P = 0.0596). Between esCCO and VV, the mean bias was +0.6 L min-1 with a Limit of Agreement (LOA) of –1.8 L min-1 and +3.0 L min-1. The concordance rate was 43% (95% CI: 29–58) between esCCO and VV.

CONCLUSION: Both single and trended measurements of CO using esCCO and VV were not in agreement. This large discrepancy leads one to the conclusion that any outcome study conducted with one of these devices cannot be applied to the other.

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Keywords

non-invasive monitoring, cardiac output, cardiac surgery, general anaesthesia

About this article
Title

Comparison of the ability of esCCO and Volume View to measure trends in cardiac output in patients undergoing cardiac surgery

Journal

Anaesthesiology Intensive Therapy

Issue

Vol 49, No 3 (2017)

Pages

175-180

Published online

2017-08-12

DOI

10.5603/AIT.2017.0043

Bibliographic record

Anaesthesiol Intensive Ther 2017;49(3):175-180.

Keywords

non-invasive monitoring
cardiac output
cardiac surgery
general anaesthesia

Authors

Stephanie Dache
Nicolas Van Rompaey
Alexandre Joosten
Olivier Desebbe
Sarah Saxena
Frederic Vanden Eynden
Caroline Van Aelbrouck
Isabelle Huybrechts
Luc Van Obbergh
Luc Barvais

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