Evidence map›Paper›PMID 34348784›Full record

ArticleScandinavian journal of trauma, resuscitation and emergency medicine2021

Primary versus early secondary referral to a specialized neurotrauma center in patients with moderate/severe traumatic brain injury: a CENTER TBI study.

Charlie Aletta Sewalt, Benjamin Yaël Gravesteijn, David Menon, Hester Floor Lingsma, Andrew I R Maas, Nino Stocchetti, Esmee Venema, Fiona E Lecky, CENTER TBI Participants and Investigators

Open access · goldAbstract read
In one paragraph

Article in Scandinavian journal of trauma, resuscitation and emergency medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
2.1field-weighted citation impact, top 11% 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

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 23 citations in OpenAlex.

  1. Transport and destination hospital for patients with suspected multiple and/or severe injuries - a systematic review and clinical practice guideline update.European journal of trauma and emergency surgery : official publication of the European Trauma Society · 2026
    Pooled it
  2. Observational
  3. Article
  4. Article
  5. Impact of interhospital transport on outcome in traumatic epidural hematoma: experiences of a level-1 trauma center.European journal of trauma and emergency surgery : official publication of the European Trauma Society · 2025
    Article
  6. Article
  7. Article
  8. Observational
  9. Review
  10. Article
  11. Article
  12. Article
  13. 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

9 authors at 5 institutions in 4 countries.

Charlie Aletta SewaltDepartment of Public Health, Erasmus MC Medical Center, Postbus 2040, 3000 CA, Rotterdam, The Netherlands. c.sewalt@erasmusmc.nl.ORCID http://orcid.org/0000-0003-3270-4814
Benjamin Yaël GravesteijnDepartment of Public Health, Erasmus MC Medical Center, Postbus 2040, 3000 CA, Rotterdam, The Netherlands.
David MenonDivision of Anaesthesia, Addenbrooke's Hospital, University of Cambridge, Cambridge, UK.
Hester Floor LingsmaDepartment of Public Health, Erasmus MC Medical Center, Postbus 2040, 3000 CA, Rotterdam, The Netherlands.
Andrew I R MaasDepartment of Neurosurgery, Antwerp University Hospital, and University of Antwerp, Edegem, Belgium.
Nino StocchettiDepartment of Pathophysiology and Transplantation, Milan University, and Neuroscience ICU, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Milan, Italy.
Esmee VenemaDepartment of Public Health, Erasmus MC Medical Center, Postbus 2040, 3000 CA, Rotterdam, The Netherlands.
Fiona E LeckyCenter for Urgent and Emergency Care Research (CURE), Health Services Research Section, School of Health and Related Research (ScHARR), University of Sheffield, Sheffield, UK.
CENTER TBI Participants and Investigators
Erasmus MC · NLUniversity of Cambridge · GBFondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico · ITUniversity of Antwerp · BEUniversity of Sheffield · GB

Funding

FP7 Health 602150
6 · The paper itself

Abstract

backgroundPrehospital care for patients with traumatic brain injury (TBI) varies with some emergency medical systems recommending direct transport of patients with moderate to severe TBI to hospitals with specialist neurotrauma care (SNCs). The aim of this study is to assess variation in levels of early secondary referral within European SNCs and to compare the outcomes of directly admitted and secondarily transferred patients.

methodsPatients with moderate and severe TBI (Glasgow Coma Scale < 13) from the prospective European CENTER-TBI study were included in this study. All participating hospitals were specialist neuroscience centers. First, adjusted between-country differences were analysed using random effects logistic regression where early secondary referral was the dependent variable, and a random intercept for country was included. Second, the adjusted effect of early secondary referral on survival to hospital discharge and functional outcome [6 months Glasgow Outcome Scale Extended (GOSE)] was estimated using logistic and ordinal mixed effects models, respectively.

resultsA total of 1347 moderate/severe TBI patients from 53 SNCs in 18 European countries were included. Of these 1347 patients, 195 (14.5%) were admitted after early secondary referral. Secondarily referred moderate/severe TBI patients presented more often with a CT abnormality: mass lesion (52% vs. 34%), midline shift (54% vs. 36%) and acute subdural hematoma (77% vs. 65%). After adjusting for case-mix, there was a large European variation in early secondary referral, with a median OR of 1.69 between countries. Early secondary referral was not associated with functional outcome (adjusted OR 1.07, 95% CI 0.78-1.69), nor with survival at discharge (1.05, 0.58-1.90).

conclusionsAcross Europe, substantial practice variation exists in the proportion of secondarily referred TBI patients at SNCs that is not explained by case mix. Within SNCs early secondary referral does not seem to impact functional outcome and survival after stabilisation in a non-specialised hospital. Future research should identify which patients with TBI truly benefit from direct transportation.

Indexed as

Brain Injuries, TraumaticGlasgow Coma ScaleGlasgow Outcome ScaleHumansProspective StudiesReferral and ConsultationReferralTransferTrauma systemTraumatic brain injury

Identifiers

PMID34348784
PMCPMC8340517
OpenAlexW3193055391

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.