Evidence map›Paper›PMID 17525841›Full record

ArticleIntensive care medicine2007

Agreement of central venous saturation and mixed venous saturation in cardiac surgery patients.

Michael Sander, Claudia D Spies, Achim Foer, Lisa Weymann, Jan Braun, Thomas Volk, Herko Grubitzsch, Christian von Heymann

Abstract read
PubMed Publisher
In one paragraph

Article in Intensive care medicine, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
6.7field-weighted citation impact, top 3% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

16 citing papers in PubMed, 1 synthesis or guideline pooled it, 59 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Review
  4. One approach to circulation and blood flow in the critical care unit.World journal of critical care medicine · 2019
    Review
  5. Article
  6. [Venous saturation : Between oxygen delivery and consumption].Medizinische Klinik, Intensivmedizin und Notfallmedizin · 2017
    Review
  7. Observational
  8. Review
  9. Review
  10. Article
  11. Review
  12. Article
  13. Article
  14. Review
  15. Year in review 2007: Critical Care--cardiology.Critical care (London, England) · 2008
    Review
  16. Observational
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 1 institution in 1 country.

Michael SanderDepartment of Anaesthesiology and Intensive Care Medicine, University Hospital Charité, Campus Charité Mitte/Campus Virchow Klinikum, Charité Universitätsmedizin, Charitéplatz 1, 10098, Berlin, Germany. michael.sander@charite.de
Claudia D Spies
Achim Foer
Lisa Weymann
Jan Braun
Thomas Volk
Herko Grubitzsch
Christian von Heymann
Charité - Universitätsmedizin Berlin · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveComparison of the bias and the limits of agreement (LOA; 2 SD) of the central venous saturation (S(cv)O(2)) before, during and after coronary artery bypass graft surgery with a simultaneous measurement of the mixed venous saturation (S(v)O(2)). DESIGN AND

settingProspective controlled study in a university hospital department of anaesthesiology. PATIENTS: 60 patients with coronary artery bypass surgery, 300 paired measurements of S(v)O(2) and S(cv)O(2). MEASUREMENTS AND

resultsS(cv)O(2) and S(v)O(2) were analysed after induction of anaesthesia 15 min after cardiopulmonary bypass and 1, 6 and 18 h after admission to the intensive care unit. Regression analysis for the pooled measurements of S(cv)O(2) and S(v)O(2) showed a correlation R (2) = 0.52. After induction of anaesthesia 15 min after weaning from cardiopulmonary bypass and 6 h after admission to the intensive care unit the correlation coefficient was R (2) = 0.46, on admission to the intensive care unit it was R (2) = 0.42, and at 18 h it was R (2) = 0.38. Bland-Altman analysis for the measurements of S(cv)O(2) and S(v)O(2) showed a mean bias and LOA of 0.3% and -11.9 to +12.4%. In patients with a low S(cv)O(2) there was a trend to overestimate the S(v)O(2) by using the S(cv)O(2). The only factor that influenced the DeltaS(v)O(2) - S(cv)O(2) was the oxygen extraction rate (R (2) = 0.16). In patients with S(cv)O(2) below 70% this association was more pronounced (R (2) = 0.60).

conclusionsOur findings demonstrate that oxygen extraction rate is the major factor in the difference between S(v)O(2) and S(cv)O(2). Under certain circumstances S(cv)O(2) differed substantially from S(v)O(2). Therefore in selected patients both parameters should be monitored to exclude general or focal hypoperfusion.

Indexed as

Coronary Artery BypassAgedFemaleHumansMaleMiddle AgedOxygenPerioperative CareProspective StudiesVeinsOxygen

Identifiers

PMID17525841
OpenAlexW2032913290

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.