Evidence map›Paper›PMID 22777518›Full record

ArticleIntensive care medicine2012

Red blood cell transfusion affects microdialysis-assessed interstitial lactate/pyruvate ratio in critically ill patients with late sepsis.

Petros Kopterides, Maria Theodorakopoulou, Nikitas Nikitas, Ioannis Ilias, Dimitra Argiro Vassiliadi, Stylianos E Orfanos, Iraklis Tsangaris, Nikolaos A Maniatis, Argirios E Tsantes, Anthi Travlou and 4 more

Abstract read
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In one paragraph

Article in Intensive care medicine, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 2 pooled it
2.1field-weighted citation impact, top 14% 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

12 citing papers in PubMed, 2 syntheses or guidelines pooled it, 22 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Article
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  9. Article
  10. Transfusion of Red Blood Cells to Patients with Sepsis.International journal of molecular sciences · 2017
    Review
  11. Observational
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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

14 authors at 4 institutions in 2 countries.

Petros KopteridesSecond Department of Critical Care Medicine, Attiko University Hospital, Medical School, National and Kapodistrian University of Athens, 1 Rimini Street, Haidari, 12462, Athens, Greece. petkop@ath.forthnet.gr
Maria Theodorakopoulou
Nikitas Nikitas
Ioannis Ilias
Dimitra Argiro Vassiliadi
Stylianos E Orfanos
Iraklis Tsangaris
Nikolaos A Maniatis
Argirios E Tsantes
Anthi Travlou
George Dimitriadis
Apostolos Armaganidis
Urban Ungerstedt
Ioanna Dimopoulou
National and Kapodistrian University of Athens · GRUniversity General Hospital Attikon · GRForthnet (Greece) · GRKarolinska Institutet · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe aim of this study was to explore the effect of red blood cell (RBC) transfusion on microdialysis-assessed interstitial fluid metabolic parameters in septic patients.

methodsWe conducted a retrospective study of 37 patients with severe sepsis/septic shock requiring transfusion of one to two RBC units. Interstitial fluid metabolic alterations were monitored by a microdialysis catheter inserted in the subcutaneous adipose tissue. Samples were collected before (T0) and after transfusion at two time-points: T1a and T1b; median post-transfusion times of 120 [interquartile range (IQR); 45-180] and 360 (IQR; 285-320) min. Lactate, pyruvate, glycerol and glucose concentrations were measured with a bedside analyzer, and the lactate/pyruvate (LP) ratio was calculated automatically.

resultsRBC transfusions decreased the LP ratio from (T0) 18.80 [interquartile range (IQR); 14.85-27.45] to (T1a) 17.80 (IQR; 14.35-25.20; P < 0.05) and (T1b) 17.90 (IQR; 14.45-22.75; P < 0.001), while there was also significant interindividual variation. Post-transfusion LP ratio changes at T1a [r = -0.42; 95 % confidence interval (CI), -0.66 to -0.098; P = 0.01] and T1b (r = -0.68; 95 % [CI], -0.82 to -0.44; P < 0.001) were significantly correlated with the pre-transfusion LP ratio, but not with baseline demographic characteristics, vital signs, severity scores, hemoglobin level and blood lactate. RBC storage time and leukocyte reduction had no influence on the tissue metabolic response to transfusion.

conclusionsTissue oxygenation is affected by RBC transfusion in critically ill septic patients. Monitoring of tissue LP ratio by microdialysis may represent a useful method for individual clinical management.

Indexed as

Erythrocyte TransfusionMicrodialysisAdipose TissueAgedBlood Specimen CollectionExtracellular FluidFemaleHumansHypoxiaLactic AcidMaleMicrocirculationMiddle AgedMultivariate AnalysisOxidation-ReductionPilot ProjectsLactic AcidPyruvic Acid

Identifiers

PMID22777518
OpenAlexW1993426874

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.