Cognitive functioning following traumatic brain injury: a five-year follow-up

Marsh, Nigel V., Ludbrook, Maria R., and Gaffaney, Lauren C. (2016) Cognitive functioning following traumatic brain injury: a five-year follow-up. NeuroRehabilitation, 38 (1). pp. 71-78.

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View at Publisher Website: https://doi.org/10.3233/NRE-151297
 
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Abstract

OBJECTIVE: To describe the long-term prevalence and severity of cognitive deficits following significant (i.e., ventilation required for >24 hours) traumatic brain injury. To assess a comprehensive range of cognitive functions using psychometric measures with established normative, reliability, and validity data.

METHODS: A group of 71 adults was assessed at approximately five years (mean = 66 months) following injury. Assessment of cognitive functioning covered the domains of intelligence, attention, verbal and visual memory, visual-spatial construction, and executive functions.

RESULTS: Impairment was evident across all domains but prevalence varied both within and between domains. Across aspects of intelligence clinical impairment ranged from 8–25% , attention 39–62% , verbal memory 16–46% , visual memory 23–51% , visual-spatial construction 38% , and executive functions (verbal fluency) 13% . In addition, 3–23% of performances across the measures were in the borderline range, suggesting a high prevalence of subclinical deficit.

CONCLUSIONS: Although the prevalence of impairment may vary across cognitive domains, long-term follow-up documented deficits in all six domains. These findings provide further evidence that while improvement of cognitive functioning following significant traumatic brain injury may be possible, recovery of function is unlikely.

Item ID: 58812
Item Type: Article (Research - C1)
ISSN: 1878-6448
Keywords: traumatic brain injury, cognitive functioning, neuropsychological assessment, long-term outcome
Copyright Information: © 2016 – IOS Press and the authors. All rights reserved
Funders: Neurological Foundation of New Zealand (NFNZ)
Projects and Grants: NFNZ NF 98/17PG
Date Deposited: 08 Jul 2019 22:54
FoR Codes: 17 PSYCHOLOGY AND COGNITIVE SCIENCES > 1701 Psychology > 170106 Health, Clinical and Counselling Psychology @ 100%
SEO Codes: 92 HEALTH > 9201 Clinical Health (Organs, Diseases and Abnormal Conditions) > 920111 Nervous System and Disorders @ 100%
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