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01-10-2007 | Original

Continuous monitoring of ScvO₂ by a new fibre-optic technology compared with blood gas oximetry in critically ill patients: a multicentre study

Authors: Zsolt Molnar, Andreas Umgelter, Ildiko Toth, David Livingstone, Andreas Weyland, Samir G. Sakka, Andreas Meier-Hellmann

Published in: Intensive Care Medicine | Issue 10/2007

Abstract

Objective

The aim of this study was to compare the accuracy of the CeVOX monitor measuring continuous central venous saturation (ScvO₂) with laboratory blood gas oximetry under clinical circumstances.

Design

Prospective, multicentre, observational study.

Setting

Five adult general intensive care units.

Patients and participants

Fifty-three critically ill patients.

Interventions

The fibre-optic probe was inserted into an ordinary central venous catheter's distal lumen. Blood samples were taken from this line via a Y-adapter every 8 h and ScvO₂ was measured with a laboratory co-oximeter. Patients were observed for a maximum of 5 days. Results were compared using linear regression and the Bland and Altman plots.

Measurements and results

The 526 matched pairs of ScvO₂ showed a significant correlation between the two methods (r = 0.79, p< 0.001). Bland–Altman plots showed an overall mean bias of –0.3% and moderate agreement (lower and upper levels of agreement: –13.2% and 12.5%). Correlation for the first time point, and for differences between the first two time points for each method revealed good correlation: (n = 53): r = 0.79, p< 0.001; (n = 50): r = 0.58, p< 0.001, respectively.

Conclusion

These results in a heterogeneous group of critically ill patients show that continuous ScvO₂ monitoring by the CeVOX technology yielded results comparable with those obtained by laboratory co-oximetry and therefore can be relied on in everyday clinical practice.

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Title: Continuous monitoring of ScvO2 by a new fibre-optic technology compared with blood gas oximetry in critically ill patients: a multicentre study
Authors: Zsolt Molnar
Andreas Umgelter
Ildiko Toth
David Livingstone
Andreas Weyland
Samir G. Sakka
Andreas Meier-Hellmann
Publication date: 01-10-2007
Publisher: Springer-Verlag
Published in: Intensive Care Medicine / Issue 10/2007
Print ISSN: 0342-4642
Electronic ISSN: 1432-1238
DOI: https://doi.org/10.1007/s00134-007-0743-7

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Continuous monitoring of ScvO₂ by a new fibre-optic technology compared with blood gas oximetry in critically ill patients: a multicentre study

Abstract

Objective

Design

Setting

Patients and participants

Interventions

Measurements and results

Conclusion

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Objective

Design

Setting

Patients and participants

Interventions

Measurements and results

Conclusion

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