Evidence map›Paper›PMID 32770427›Full record

ArticleAnnals of intensive care2020

Mortality and morbidity of low-grade red blood cell transfusions in septic patients: a propensity score-matched observational study of a liberal transfusion strategy.

Caroline Ulfsdotter Nilsson, Peter Bentzer, Linnéa E Andersson, Sofia A Björkman, Fredrik P Hanssson, Thomas Kander

Abstract read
In one paragraph

Article in Annals of intensive care, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
–field-weighted citation impact
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

8 citing papers in PubMed.

  1. Patient Blood Management (PBM) as a Pillar in Surgical Safety and Care.Revista do Colegio Brasileiro de Cirurgioes · 2026
    Article
  2. Review
  3. Article
  4. The treatment of chronic anemia in heart failure: a global approach.Clinical research in cardiology : official journal of the German Cardiac Society · 2024
    Review
  5. Observational
  6. [Pathophysiology of bleeding].Medizinische Klinik, Intensivmedizin und Notfallmedizin · 2021
    Review
  7. Article
  8. 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.

Caroline Ulfsdotter NilssonDepartment of Intensive and Perioperative Care, Skåne University Hospital Lund, 221 85, Lund, Sweden.
Peter BentzerDepartment of Clinical Sciences, Anaesthesiology and Intensive Care, Lund University, 221 85, Lund, Sweden.
Linnéa E AnderssonDepartment of Clinical Sciences, Anaesthesiology and Intensive Care, Lund University, 221 85, Lund, Sweden.
Sofia A BjörkmanDepartment of Clinical Sciences, Anaesthesiology and Intensive Care, Lund University, 221 85, Lund, Sweden.
Fredrik P HansssonClinical Trial Consultants, Dag Hammarskjöldsväg 10b, 752 37, Uppsala, Sweden.
Thomas KanderDepartment of Intensive and Perioperative Care, Skåne University Hospital Lund, 221 85, Lund, Sweden. thomas.kander@med.lu.se.ORCID http://orcid.org/0000-0002-5404-2981

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundRed blood cell (RBC) transfusions are associated with risks including immunological reactions and volume overload. Current guidelines suggest a restrictive transfusion strategy in most patients with sepsis but based on previous randomized controlled trials and observational studies, there are still uncertainties about the safety in giving low-grade RBC transfusions to patients with sepsis.

methodsCritically ill patients with severe sepsis or septic shock admitted to a university hospital intensive care unit between 2007 and 2018 that received less or equal to 2 units of RBCs during the first 5 days of admission were propensity score matched to controls. Outcomes were 90- and 180-day mortality, highest acute kidney injury network (AKIN) score the first 10 days, days alive and free of organ support the first 28 days after admission to the intensive care unit and highest sequential organ failure assessment score (SOFA-max).

resultsOf 9490 admissions, 1347 were diagnosed with severe sepsis or septic shock. Propensity-score matching resulted in two well-matched groups with 237 patients in each. The annual inclusion rate in both groups was similar. The median hemoglobin level before RBC transfusion was 95 g/L (interquartile range 88-104) and the majority of the patients were transfused in first 2 days of admission. Low-grade RBC transfusion was associated with increased 90- and 180-day mortality with an absolute risk increase for death 9.3% (95% confidence interval: 0.6-18%, P = 0.032) and 11% (95% confidence interval: 1.7-19%, P = 0.018), respectively. Low-grade RBC transfusion also correlated with increased kidney, circulatory and respiratory failure and higher SOFA-max score.

conclusionsLow-grade RBC transfusion during the first 5 days of admission was associated with increased mortality and morbidity in a liberal transfusion setting. The results support the current practice of a restrictive transfusion strategy in septic critically ill patients.

Indexed as

Blood transfusionCirculatory failureCritical careRed blood cell transfusionRenal failureRespiratory failureSeptic shockSevere sepsis

Identifiers

PMID32770427
PMCPMC7415067

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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.