Evidence map›Paper›PMID 11737926›Full record

Trial reportCritical care (London, England)2001

Red blood cell transfusion does not increase oxygen consumption in critically ill septic patients.

C J Fernandes, N Akamine, F V De Marco, J A De Souza, S Lagudis, E Knobel

Open access · goldAbstract readClinical TrialRandomized Controlled Trial
In one paragraph

Trial report in Critical care (London, England), 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed, 6 pooled it
3.1field-weighted citation impact, top 8% 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

40 citing papers in PubMed, 6 syntheses or guidelines pooled it, 170 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. A new perspective on best transfusion practices.Blood transfusion = Trasfusione del sangue · 2013
    Guideline
  5. Guideline
  6. Pooled it
  7. Trial
  8. Trial
  9. Crossing the line: blood transfusion thresholds in ECMO.Critical care (London, England) · 2025
    Article
  10. Article
  11. Article
  12. Short-term effects of stored homologous red blood cell transfusion on cardiorespiratory function and inflammation: an experimental study in a hypovolemia model.Brazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologica · 2017
    Article
  13. Article
  14. Indications for blood and blood product transfusion.Indian journal of anaesthesia · 2014
    Review
  15. Factors Affecting Tissue Oxygenation in Erythrocyte Transfusions.Turkish journal of anaesthesiology and reanimation · 2014
    Review
  16. Does prolonged storage of red blood cells cause harm?British journal of haematology · 2014
    Review
  17. Article
  18. Article
  19. Article
  20. Anemia and transfusion of red blood cells.Colombia medica (Cali, Colombia) · 2013
    Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 1 institution in 1 country.

C J FernandesIntensive Care Unit, Hospital Israelita Albert Einstein, São Paulo, Brazil. constantino@einstein.br
N Akamine
F V De Marco
J A De Souza
S Lagudis
E Knobel
Hospital Israelita Albert Einstein · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundRed blood cell (RBC) transfusion is commonly used to increase oxygen transport in patients with sepsis. However it does not consistently increase oxygen uptake at either the whole-body level, as calculated by the Fick method, or within individual organs, as assessed by gastric intra-mucosal pH.

aimThis study evaluates the hemodynamic and oxygen utilization effects of hemoglobin infusion on critically ill septic patients.

methodsFifteen septic patients undergoing mechanical ventilation whose hemoglobin was <10 g% were eligible. Ten patients (APACHE II: 25.5 +/- 7.6) received an infusion of 1 unit of packed RBC over 1 h while sedated and paralyzed. The remaining five control patients (APACHE II: 24.3 +/- 6.0) received a 5% albumin solution (500 ml) over 1 h. Hemodynamic data, gastric tonometry and calorimetry were obtained prior to and immediately after RBC transfusion or 5% albumin infusion.

resultsTransfusion of RBC was associated with an improvement in left ventricular systolic work index (38.6 +/- 12.6 to 41.1 +/- 13.0 g/min/m2; P = 0.04). In the control group there was no significant change in the left ventricular systolic work index (37.2 +/- 14.3 to 42.2 +/- 18.9 g/min/m2). An increase in pulmonary vascular resistance index (203 +/- 58 to 238 +/- 49 dyne/cm5/m2; P = 0.04) was also observed, while no change was produced by colloid infusion (237 +/- 87.8 to 226.4 +/- 57.8 dyne/cm5/m2). Oxygen utilization did not increase either by Fick equation or by indirect calorimetry in either group. Gastric intramucosal pH increased only in the control group but did not reach statistical significance.

conclusionHemoglobin increase does not improve either global or regional oxygen utilization in anemic septic patients. Furthermore, RBC transfusion may hamper right ventricular ejection by increasing the pulmonary vascular resistance index.

Indexed as

Critical IllnessErythrocyte TransfusionOxygen ConsumptionAdultAnalysis of VarianceAPACHEBiological TransportCalorimetry, IndirectHemodynamicsHumansHypnotics and SedativesMaleManometryOxygenProspective StudiesSepsisHypnotics and SedativesOxygenSerum Albumin

Identifiers

PMID11737926
PMCPMC83858
OpenAlexW2104378195

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.