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

Z. Molnár, Andreas Umgelter, Ildiko Toth, David Livingstone, Andreas Weyland, Samir G. Sakka, Andreas Meier-Hellmann

Research output: Contribution to journalArticle

21 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)1767-1770
Number of pages4
JournalIntensive Care Medicine
Volume33
Issue number10
DOIs
Publication statusPublished - Oct 2007

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Fiber Optic Technology
Oximetry
Critical Illness
Multicenter Studies
Gases
Central Venous Catheters
Observational Studies
Intensive Care Units
Linear Models
Technology

Keywords

  • Central venous oxygen saturation
  • Continuous venous oximetry
  • Haemodynamic monitoring
  • Oxygen consumption
  • Oxygen delivery

ASJC Scopus subject areas

  • Critical Care and Intensive Care Medicine

Cite this

Continuous monitoring of ScvO2 by a new fibre-optic technology compared with blood gas oximetry in critically ill patients : A multicentre study. / Molnár, Z.; Umgelter, Andreas; Toth, Ildiko; Livingstone, David; Weyland, Andreas; Sakka, Samir G.; Meier-Hellmann, Andreas.

In: Intensive Care Medicine, Vol. 33, No. 10, 10.2007, p. 1767-1770.

Research output: Contribution to journalArticle

Molnár, Z. ; Umgelter, Andreas ; Toth, Ildiko ; Livingstone, David ; Weyland, Andreas ; Sakka, Samir G. ; Meier-Hellmann, Andreas. / Continuous monitoring of ScvO2 by a new fibre-optic technology compared with blood gas oximetry in critically ill patients : A multicentre study. In: Intensive Care Medicine. 2007 ; Vol. 33, No. 10. pp. 1767-1770.
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