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. 2018;32(7):809-815.
doi: 10.1080/02699052.2018.1469045. Epub 2018 Apr 27.

Intracranial pressure changes after mild traumatic brain injury: a systematic review

Mohammad Nadir Haider  1   2 , John J Leddy  1 , Andrea L Hinds  3 , Nell Aronoff  4 , Diane Rein  4 , David Poulsen  5 , Barry S Willer  6
Affiliations

Intracranial pressure changes after mild traumatic brain injury: a systematic review

Mohammad Nadir Haider et al. Brain Inj. 2018.

Abstract

Objective: Intracranial pressure (ICP) after mild traumatic brain injury (mTBI) is poorly studied due to lack of sensitive non-invasive methods. The purpose of this review was to summarize the existing knowledge of changes in ICP after mTBI. Literature selection: PubMed, Embase, CINAHL, and Scopus were searched by three reviewers independently up to December 2016.

Inclusion criteria: animal and human studies measuring ICP and brain oedema after an mTBI.

Exclusion criteria: moderate and severe forms of traumatic brain injury, repeat samples, and studies that measured ICP at the time of impact but not after. Study quality was assessed using Downs and Black criteria.

Results: Of 1067 papers, 9 studies were included. In human studies, one provided direct evidence on increased, one provided indirect evidence of increased, and two provided indirect evidence of decreased ICP. In animal studies, three studies provided direct evidence of increased, one provided indirect evidence of increased, and one provided indirect evidence of no change in ICP.

Conclusion: The existing research suggests that there may be increased ICP after mTBI and animal studies suggest an elevation for days which returns to baseline, which corresponds with functional and symptomatic recovery. Future human studies using sensitive indirect methods to measure ICP longitudinally after mTBI are needed.

Keywords: Concussion; cerebral blood flow.

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