Evidence map›Paper›PMID 27554429›Full record

ArticleJournal of neurotrauma2017

Cerebral Perfusion Changes in Post-Concussion Syndrome: A Prospective Controlled Cohort Study.

Karen M Barlow, Lorenzo D Marcil, Deborah Dewey, Helen L Carlson, Frank P MacMaster, Brian L Brooks, R Marc Lebel

Abstract readControlled Clinical Trial
In one paragraph

Article in Journal of neurotrauma, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 55 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
55citing papers in PubMed, 3 pooled it
–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

55 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Article
  5. Article
  6. Persistent dysmorphology and dysfunction of the brain microvasculature following repeated trauma.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2026
    Article
  7. The Role of MRI in Debunking the Fallacy of "Mild" Traumatic Brain Injury.Journal of magnetic resonance imaging : JMRI · 2026
    Review
  8. Article
  9. Observational
  10. Article
  11. Review
  12. Alterations of cerebrovascular reactivity following pediatric mild traumatic brain injury are independent of neurodevelopmental changes.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2025
    Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Article
  18. Arterial spin labeling magnetic resonance evaluates changes of cerebral blood flow in patients with mild traumatic brain injury.Zhong nan da xue xue bao. Yi xue ban = Journal of Central South University. Medical sciences · 2022
    Article
  19. Article
  20. Article
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

7 authors.

Karen M Barlow1 Department of Pediatrics, University of Calgary , Calgary, Alberta, Canada .
Lorenzo D Marcil4 Health Sciences, University of Calgary , Calgary, Alberta, Canada .
Deborah Dewey1 Department of Pediatrics, University of Calgary , Calgary, Alberta, Canada .
Helen L Carlson3 Alberta Children's Hospital Research Institute , Calgary, Alberta, Canada .
Frank P MacMaster1 Department of Pediatrics, University of Calgary , Calgary, Alberta, Canada .
Brian L Brooks1 Department of Pediatrics, University of Calgary , Calgary, Alberta, Canada .
R Marc Lebel3 Alberta Children's Hospital Research Institute , Calgary, Alberta, Canada .

Funding

CIHR 293375
6 · The paper itself

Abstract

The biology of post-concussive symptoms is unclear. Symptoms are often increased during activities, and have been linked to decreased cerebrovascular reactivity and perfusion. The aim of this study was to examine cerebral blood flow (CBF) in children with different clinical recovery patterns following mild traumatic brain injury (mTBI). This was a prospective controlled cohort study of children with mTBI (ages 8 to 18 years) who were symptomatic with post-concussive symptoms at one month post-injury (symptomatic, n = 27) and children who had recovered quickly (asymptomatic, n = 24). Pseudo continuous arterial spin labeling magnetic resonance imaging (MRI) was used to quantify CBF. The mTBI groups were imaged at 40 days post-injury. Global and regional CBF were compared with healthy controls of similar age and sex but without a history of mTBI (n = 21). Seventy-two participants (mean age: 14.1 years) underwent neuroimaging. Significant differences in CBF were found: global CBF was higher in the symptomatic group and lower in the asymptomatic group compared with controls, (F(2,69) 9.734; p < 0.001). Post-injury symptom score could be predicted by pre-injury symptoms and CBF in presence of mTBI (adjusted R

Indexed as

AdolescentCerebrovascular CirculationChildFemaleFollow-Up StudiesHumansMagnetic Resonance AngiographyMalePost-Concussion SyndromeSpin LabelsSpin Labelsarterial spin labelingcerebral blood flowpediatric brain injuryrecoverytraumatic brain injury

Identifiers

PMID27554429
PMCPMC5333570

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.