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Cited by 531Traumatic Brain Injury ResearchTraumatic Brain Injury and Neurovascular DisturbancesLong-Term Effects of COVID-19

The DOI matches its Crossref record; 75 of the 75 references it cites were found in a registry or an index.

Mild Traumatic Brain Injury (mTBI) and chronic cognitive impairment: A scoping review

Open access
McInnes, Kerry, Friesen, Christopher L., MacKenzie, Diane E., Westwood, David A., Boe, Shaun G.·2017·PLOS ONE
DOI 10.1371/journal.pone.0174847PMC PMC5388340
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Abstract

Mild traumatic brain injury (mTBI), or concussion, is the most common type of traumatic brain injury. With mTBI comes symptoms that include headaches, fatigue, depression, anxiety and irritability, as well as impaired cognitive function. Symptom resolution is thought to occur within 3 months post-injury, with the exception of a small percentage of individuals who are said to experience persistent post-concussion syndrome. The number of individuals who experience persistent symptoms appears to be low despite clear evidence of longer-term pathophysiological changes resulting from mTBI. In light of the incongruency between these longer-term changes in brain pathology and the number of individuals with longer-term mTBI-related symptoms, particularly impaired cognitive function, we performed a scoping review of the literature that behaviourally assessed short- and long-term cognitive function in individuals with a single mTBI, with the goal of identifying the impact of a single concussion on cognitive function in the chronic stage post-injury. CINAHL, Embase, and Medline/Ovid were searched July 2015 for studies related to concussion and cognitive impairment. Data relating to the presence/absence of cognitive impairment were extracted from 45 studies meeting our inclusion criteria. Results indicate that, in contrast to the prevailing view that most symptoms of concussion are resolved within 3 months post-injury, approximately half of individuals with a single mTBI demonstrate long-term cognitive impairment. Study limitations notwithstanding, these findings highlight the need to carefully examine the long-term implications of a single mTBI.

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Crossref · 10.1371/journal.pone.0174847

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Fig 1 Flow diagram representing each stage of the article selection process of the scoping search and citation review.
Fig 1 Flow diagram representing each stage of the article selection process of the scoping search and citation review.CC BY · PubMed Central
Fig 2 Incidence of cognitively impaired (black bars) and unimpaired (white bars) individuals at various time points post-injury from studies reporting cognitive outcomes using either author-supplied normative data or comparison groups (i.e., healthy or trauma controls) for the entire sample (A) and in individuals with a confirmed history of a single concussion only (B).
Fig 2 Incidence of cognitively impaired (black bars) and unimpaired (white bars) individuals at various time points post-injury from studies reporting cognitive outcomes using either author-supplied normative data or comparison groups (i.e., healthy or trauma controls) for the entire sample (A) and in individuals with a confirmed history of a single concussion only (B).CC BY · PubMed Central
Fig 3 Incidence of cognitively impaired (black bars) and unimpaired (white bars) individuals separated into children (no pattern) and adults (pattern).
Fig 3 Incidence of cognitively impaired (black bars) and unimpaired (white bars) individuals separated into children (no pattern) and adults (pattern).CC BY · PubMed Central

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  1. M Alexander, 1996, Mild traumatic brain injury (C) 1996, 5, 1489

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Metadata

Authors
McInnes, K., Friesen, C. L., MacKenzie, D. E., Westwood, D. A., & Boe, S. G.
Affiliations
Dalhousie University (CA)
Corresponding author
Boe, Shaun G.
ORCID
Venue
PLOS ONE
Publisher
Public Library of Science (PLoS)
Published
2017-04-11
Volume
12
Issue
4
Pages
e0174847
ISSN
1932-6203 (ISSN-L)
DOI
10.1371/journal.pone.0174847
PMC
PMC5388340
OpenAlex
W2606627358
Cited by
531
References
75
Citations by year
2026: 60 · 2025: 71 · 2024: 64 · 2023: 59 · 2022: 47 · 2021: 65 · 2020: 66 · 2019: 57 · 2018: 33 · 2017: 8
FWCI
5.95
Type
journal article
Language
en
Update notices
correction (2019-06-11)
Open access
Licence
Locations
  • PLoS ONE (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
Canadian Institutes of Health Research
Topics
  • Health Sciences › Medicine › Clinical Neurology › Traumatic Brain Injury Research
  • Health Sciences › Medicine › Clinical Neurology › Traumatic Brain Injury and Neurovascular Disturbances
  • Health Sciences › Medicine › Clinical Neurology › Long-Term Effects of COVID-19
Keywords
mild traumatic brain injury, concussion, post-concussion syndrome, long-term cognitive function, persistent post-concussion symptoms, symptom resolution, neuropathology
MeSH terms
Brain Concussion, Chronic Disease, Humans, Cognitive Dysfunction

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