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. 2018 Jul-Aug;10(4):334-339.
doi: 10.1177/1941738118765450. Epub 2018 Mar 19.

Correlating the King-Devick Test With Vestibular/Ocular Motor Screening in Adolescent Patients With Concussion: A Pilot Study

Shira Russell-Giller  1 , Diana Toto  2 , Mike Heitzman  2 , Mustafa Naematullah  2 , John Shumko  2
Affiliations

Correlating the King-Devick Test With Vestibular/Ocular Motor Screening in Adolescent Patients With Concussion: A Pilot Study

Shira Russell-Giller et al. Sports Health. 2018 Jul-Aug.

Abstract

Background: The King-Devick (K-D) test is a rapid number-naming task that has been well validated as a sensitive sideline performance measure for concussion detection. Patients with concussion take significantly longer to complete the K-D test than healthy controls. Previous research suggests that ocular motor deficits, specifically saccadic abnormalities, may be an underlying factor for the prolonged time. However, these findings have not been studied at length.

Hypothesis: K-D testing time of concussed adolescents at the initial clinical concussion visit will positively correlate with vestibular/ocular motor screening (VOMS) total scores.

Study design: Case series.

Level of evidence: Level 3.

Methods: A total of 71 patient charts were retrospectively analyzed between October 1, 2016, and January 31, 2017. Included charts consisted of patients between the ages of 10 and 18 years with a diagnosis of concussion and who had completed K-D testing and VOMS assessment at the initial physician visit. Univariate correlation between K-D testing time and the 7 VOMS items was assessed using Pearson correlation coefficients.

Results: K-D testing time strongly correlated with all 7 VOMS items ( r(69) = 0.325-0.585, P < 0.01). In a linear regression model that accounted for each VOMS item, the convergence (near point) item and the visual motion sensitivity item significantly predicted K-D testing time (β = 0.387, t(63) = 2.81, P < 0.01 and β = 0.375, t(63) = 2.35, P = 0.02, respectively). Additionally, 37.5% of the 24 patients with worsening symptoms after K-D testing freely reported increased visual problems.

Conclusion: Our study suggests that prolonged K-D testing times in adolescents with concussion may be related to subtypes of vestibular/ocular motor impairment that extend beyond saccadic abnormalities.

Clinical relevance: Poor K-D testing performance of adolescents with concussion may indicate a range of vestibular/ocular motor deficits that need to be further identified and addressed to maximize recovery.

Keywords: King-Devick test; concussion; vestibular/ocular motor screening.

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Conflict of interest statement

The authors report no potential conflicts of interest in the development and publication of this article.

Figures

Figure 1.
Figure 1.
Regression model of convergence and King-Devick (K-D) test scores.
Figure 2.
Figure 2.
Regression model of visual motion sensitivity scores and King-Devick (K-D) test scores.
See this image and copyright information in PMC

References

    1. Anzalone AJ, Blueitt D, Case T, et al. A positive vestibular/ocular motor screening (VOMS) is associated with increased recovery time after sports-related concussion in youth and adolescent athletes. Am J Sports Med. 2017;45:474-479. - PubMed
    1. Capo-Aponte JE, Urosevich TG, Temme LA, Tarbett AK, Sanghera NK. Visual dysfunctions and symptoms during the subacute stage of blast-induced mild traumatic brain injury. Mil Med. 2012;177:804-813. - PubMed
    1. Carney N, Ghajar J, Jagoda A, et al. Concussion guidelines step 1: systematic review of prevalent indicators. Neurosurgery. 2014;75(suppl 1):S3-S15. - PubMed
    1. Ciuffreda KJ, Kapoor N, Rutner D, Suchoff IB, Han ME, Craig S. Occurrence of oculomotor dysfunctions in acquired brain injury: a retrospective analysis. J Am Optom Assoc. 2007;78:155-161. - PubMed
    1. Corwin DJ, Wiebe DJ, Zonfrillo MR, et al. Vestibular deficits following youth concussion. J Pediatr. 2015;166:1221-1225. - PMC - PubMed