Evidence map›Paper›PMID 28360248›Full record

Observational studyBMJ open2017

Transfusion of red blood cells in patients with traumatic brain injuries admitted to Canadian trauma health centres: a multicentre cohort study.

Amélie Boutin, Lynne Moore, François Lauzier, Michaël Chassé, Shane English, Ryan Zarychanski, Lauralyn McIntyre, Donald Griesdale, Dean A Fergusson, Alexis F Turgeon

Open access · goldAbstract readMulticenter StudyObservational Study
In one paragraph

Observational study in BMJ open, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 3 pooled it
1.9field-weighted citation impact, top 16% 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

20 citing papers in PubMed, 3 syntheses or guidelines pooled it, 40 citations in OpenAlex.

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  12. Predictive value of modified early warning score for massive transfusion in patients with traumatic brain injury.Ulusal travma ve acil cerrahi dergisi = Turkish journal of trauma & emergency surgery : TJTES · 2022
    Observational
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  18. Critical Care Society of Southern Africa adult patient blood management guidelines: 2019 Round-table meeting, CCSSA Congress, Durban, 2018.The Southern African journal of critical care : the official journal of the Critical Care Society · 2020
    Article
  19. Article
  20. Transfusion practices in traumatic brain injury.Current opinion in anaesthesiology · 2018
    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

10 authors at 4 institutions in 1 country.

Amélie BoutinPopulation Health and Optimal Health Practices Research Unit (Trauma-Emergency-Critical Care Medicine), CHU de Québec-Université Laval Research Centre, Université Laval, Québec, Québec, Canada.
Lynne MoorePopulation Health and Optimal Health Practices Research Unit (Trauma-Emergency-Critical Care Medicine), CHU de Québec-Université Laval Research Centre, Université Laval, Québec, Québec, Canada.
François LauzierPopulation Health and Optimal Health Practices Research Unit (Trauma-Emergency-Critical Care Medicine), CHU de Québec-Université Laval Research Centre, Université Laval, Québec, Québec, Canada.
Michaël ChasséPopulation Health and Optimal Health Practices Research Unit (Trauma-Emergency-Critical Care Medicine), CHU de Québec-Université Laval Research Centre, Université Laval, Québec, Québec, Canada.
Shane EnglishClinical Epidemiology Unit, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada.
Ryan ZarychanskiDepartment of Internal Medicine, Sections of Critical Care Medicine, of Haematology and of Medical Oncology, University of Manitoba, Winnipeg, Manitoba, Canada.
Lauralyn McIntyreClinical Epidemiology Unit, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada.
Donald GriesdaleDepartment of Anesthesia, University of British Columbia, Vancouver, British Columbia, Canada.
Dean A FergussonClinical Epidemiology Unit, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada.
Alexis F TurgeonPopulation Health and Optimal Health Practices Research Unit (Trauma-Emergency-Critical Care Medicine), CHU de Québec-Université Laval Research Centre, Université Laval, Québec, Québec, Canada.ORCID 0000-0001-5675-8791
Université Laval · CAOttawa Hospital · CAUniversity of British Columbia · CAUniversity of Manitoba · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundOptimisation of healthcare practices in patients sustaining a traumatic brain injury is of major concern given the high incidence of death and long-term disabilities. Considering the brain's susceptibility to ischaemia, strategies to optimise oxygenation to brain are needed. While red blood cell (RBC) transfusion is one such strategy, specific RBC strategies are debated. We aimed to evaluate RBC transfusion frequency, determinants of transfusions and associated clinical outcomes.

methodsWe conducted a retrospective multicentre cohort study using data from the National Trauma Registry of Canada. Patients admitted with moderate or severe traumatic brain injury to participating hospitals between April 2005 and March 2013 were eligible. Patient information on blood products, comorbidities, interventions and complications from the Discharge Abstract Database were linked to the National Trauma Registry data. Relative weights analyses evaluated the contribution of each determinant. We conducted multivariate robust Poisson regression to evaluate the association between potential determinants, mortality, complications, hospital-to-home discharge and RBC transfusion. We also used proportional hazard models to evaluate length of stay for time to discharge from ICU and hospital.

resultsAmong the 7062 patients with traumatic brain injury, 1991 patients received at least one RBC transfusion during their hospital stay. Female sex, anaemia, coagulopathy, sepsis, bleeding, hypovolemic shock, other comorbid illnesses, serious extracerebral trauma injuries were all significantly associated with RBC transfusion. Serious extracerebral injuries altogether explained 61% of the observed variation in RBC transfusion. Mortality (risk ratio (RR) 1.23 (95% CI 1.13 to 1.33)), trauma complications (RR 1.38 (95% CI 1.32 to 1.44)) and discharge elsewhere than home (RR 1.88 (95% CI 1.75 to 2.04)) were increased in patients who received RBC transfusion. Discharge from ICU and hospital were also delayed in transfused patients.

conclusionsRBC transfusion is common in patients with traumatic brain injury and associated with unfavourable outcomes. Trauma severity is an important determinant of RBC transfusion. Prospective studies are needed to further evaluate optimal transfusion strategies in traumatic brain injury.

Indexed as

Abbreviated Injury ScaleAdolescentAdultAgedAnemiaBrain Injuries, TraumaticCanadaErythrocyte TransfusionFemaleHemorrhageHumansLength of StayMaleMiddle AgedPrognosisRetrospective StudiesRed Blood CellTransfusionTraumatic Brain Injury

Identifiers

PMID28360248
PMCPMC5372060
OpenAlexW2601409629

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.