Acute evaluation of sport-related concussion and implications for the Sport Concussion Assessment Tool (SCAT6) for adults, adolescents and children: a systematic review.

2023-06

Echemendia, Ruben J

Burma, Joel S

Bruce, Jared M

Davis, Gavin A

Giza, Christopher C

Guskiewicz, Kevin M

Naidu, Dhiren

Black, Amanda Marie

Broglio, Steven

Kemp, Simon

Patricios, Jon S

Putukian, Margot

Zemek, Roger

Arango-Lasprilla, Juan Carlos

Bailey, Christopher M

Brett, Benjamin L

Didehbani, Nyaz

Gioia, Gerry

Herring, Stanley A

Howell, David

Master, Christina L

Valovich McLeod, Tamara C

Meehan, William P

Premji, Zahra

Salmon, Danielle

van Ierssel, Jacqueline

Bhathela, Neil

Makdissi, Michael

Walton, Samuel R

Kissick, James

Pardini, Jamie

Schneider, Kathryn J

Brain Concussion

Consensus

Sports

Sports medicine

Journal Article

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0000-0002-5951-5899

10.1136/bjsports-2022-106661

To systematically review the scientific literature regarding the acute assessment of sport-related concussion (SRC) and provide recommendations for improving the Sport Concussion Assessment Tool (SCAT6). Systematic searches of seven databases from 2001 to 2022 using key words and controlled vocabulary relevant to concussion, sports, SCAT, and acute evaluation. (1) Original research articles, cohort studies, case-control studies, and case series with a sample of >10; (2) ≥80% SRC; and (3) studies using a screening tool/technology to assess SRC acutely (<7 days), and/or studies containing psychometric/normative data for common tools used to assess SRC. Separate reviews were conducted involving six subdomains: Cognition, Balance/Postural Stability, Oculomotor/Cervical/Vestibular, Emerging Technologies, and Neurological Examination/Autonomic Dysfunction. Paediatric/Child studies were included in each subdomain. Risk of Bias and study quality were rated by coauthors using a modified SIGN (Scottish Intercollegiate Guidelines Network) tool. Out of 12 192 articles screened, 612 were included (189 normative data and 423 SRC assessment studies). Of these, 183 focused on cognition, 126 balance/postural stability, 76 oculomotor/cervical/vestibular, 142 emerging technologies, 13 neurological examination/autonomic dysfunction, and 23 paediatric/child SCAT. The SCAT discriminates between concussed and non-concussed athletes within 72 hours of injury with diminishing utility up to 7 days post injury. Ceiling effects were apparent on the 5-word list learning and concentration subtests. More challenging tests, including the 10-word list, were recommended. Test-retest data revealed limitations in temporal stability. Studies primarily originated in North America with scant data on children. Support exists for using the SCAT within the acute phase of injury. Maximal utility occurs within the first 72 hours and then diminishes up to 7 days after injury. The SCAT has limited utility as a return to play tool beyond 7 days. Empirical data are limited in pre-adolescents, women, sport type, geographical and culturally diverse populations and para athletes. CRD42020154787.

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British Journal of Sports Medicine 2023

British Journal of Sports Medicine

1473-0480