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Citation
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Echemendia RJ, Thelen J, Meeuwisse W, Comper P, Hutchison MG, Rizos J, Bruce JM. Clin. J. Sport. Med. 2020; ePub(ePub): ePub. |
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Abstract
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OBJECTIVE: The purpose of this study was to (1) examine the diagnostic utility of the King-Devick (KD) in professional ice hockey players and (2) determine whether the KD provides unique variance in predicting a diagnosis of concussion when given in combination with the SCAT-5.
STUDY DESIGN: Cohort Study.
SETTING: Primary care.
PATIENTS/PARTICIPANTS: Professional ice hockey players.
INDEPENDENT VARIABLES: Diagnosis versus no diagnosis of concussion.
MAIN OUTCOME MEASURES: King-Devick and SCAT-5 component scores.
METHODS: In part 1, players suspected of having a concussion were evaluated at baseline and acutely with the KD and either the SCAT-3 or the SCAT-5. Players evaluated and not diagnosed with concussion served as active controls. In part 2, a separate group of players suspected of having a concussion was evaluated acutely with both the KD and SCAT-5.
RESULTS: In part 1 of this study, 53 concussed players declined in performance on the KD from baseline to acute evaluation, whereas the performance of 76 active controls improved significantly. In part 2 of the study, 75 players were diagnosed with concussion and compared with 80 active controls who were evaluated and not diagnosed with concussion. Concussed players revealed a decline in KD performance from baseline to acute evaluation when compared with controls. However, the KD did not account for significant unique variance in predicting a diagnosis of concussion after accounting for SCAT-5 data.
CONCLUSIONS: The KD is useful in differentiating concussed and not concussed athletes acutely, but the KD does not seem to add additional diagnostic value over and above the SCAT-5.
Language: en |