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December 2017; 7 (6) Research

King-Devick Test identifies real-time concussion and asymptomatic concussion in youth athletes

Priya S. Dhawan, Danielle Leong, Lisa Tapsell, Amaal J. Starling, Steven L. Galetta, Laura J. Balcer, Trenton L. Overall, Jennifer S. Adler, Rashmi B. Halker-Singh, Bert B. Vargas, David Dodick
First published August 7, 2017, DOI: https://doi.org/10.1212/CPJ.0000000000000381
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Article Information

vol. 7 no. 6 464-473
DOI: 
https://doi.org/10.1212/CPJ.0000000000000381
Published By: 
Wolters Kluwer Health, Inc. on behalf of the American Academy of Neurology
Print ISSN: 
2163-0402
Online ISSN: 
2163-0933
History: 
  • Received April 14, 2016
  • Accepted June 13, 2017
  • First Published August 7, 2017.

Article Versions

Copyright & Usage: 
© 2017 American Academy of Neurology

Author Disclosures

    1. Priya S. Dhawan, MD,
    2. Danielle Leong, OD, PhD,
    3. Lisa Tapsell, REEGT,
    4. Amaal J. Starling, MD,
    5. Steven L. Galetta, MD,
    6. Laura J. Balcer, MD, MSCE,
    7. Trenton L. Overall, DO,
    8. Jennifer S. Adler,
    9. Rashmi B. Halker-Singh, MD,
    10. Bert B. Vargas, MD and
    11. David Dodick, MD
  1. Priya S. Dhawan, MD,
    2. Scientific Advisory Boards:

    1. NONE

    Gifts:

    1. NONE

    Funding for Travel or Speaker Honoraria:

    1. NONE

    Editorial Boards:

    1. NONE

    Patents:

    1. NONE

    Publishing Royalties:

    1. NONE

    Employment, Commercial Entity:

    1. NONE

    Consultancies:

    1. NONE

    Speakers' Bureaus:

    1. NONE

    Other Activities:

    1. NONE

    Clinical Procedures or Imaging Studies:

    1. NONE

    Research Support, Commercial Entities:

    1. NONE

    Research Support, Government Entities:

    1. NONE

    Research Support, Academic Entities:

    1. NONE

    Research Support, Foundations and Societies:

    1. NONE

    Stock/Stock Options/Board of Directors Compensation:

    1. NONE

    License Fee Payments, Technology or Inventions:

    1. NONE

    Royalty Payments, Technology or Inventions:

    1. NONE

    Stock/Stock Options, Research Sponsor:

    1. NONE

    Stock/Stock Options, Medical Equipment & Materials:

    1. NONE

    Legal Proceedings:

    1. NONE

  2. Danielle Leong, OD, PhD,
    3. Scientific Advisory Boards:

    1. NONE

    Gifts:

    1. NONE

    Funding for Travel or Speaker Honoraria:

    1. NONE

    Editorial Boards:

    1. NONE

    Patents:

    1. NONE

    Publishing Royalties:

    1. NONE

    Employment, Commercial Entity:

    1. 1) King-Devick technologies, inc. Director of Research 5 years

    Consultancies:

    1. NONE

    Speakers' Bureaus:

    1. NONE

    Other Activities:

    1. NONE

    Clinical Procedures or Imaging Studies:

    1. NONE

    Research Support, Commercial Entities:

    1. NONE

    Research Support, Government Entities:

    1. NONE

    Research Support, Academic Entities:

    1. NONE

    Research Support, Foundations and Societies:

    1. NONE

    Stock/Stock Options/Board of Directors Compensation:

    1. NONE

    License Fee Payments, Technology or Inventions:

    1. NONE

    Royalty Payments, Technology or Inventions:

    1. NONE

    Stock/Stock Options, Research Sponsor:

    1. NONE

    Stock/Stock Options, Medical Equipment & Materials:

    1. NONE

    Legal Proceedings:

    1. NONE

  3. Lisa Tapsell, REEGT,
    4. Scientific Advisory Boards:

    1. NONE

    Gifts:

    1. NONE

    Funding for Travel or Speaker Honoraria:

    1. NONE

    Editorial Boards:

    1. NONE

    Patents:

    1. NONE

    Publishing Royalties:

    1. NONE

    Employment, Commercial Entity:

    1. NONE

    Consultancies:

    1. NONE

    Speakers' Bureaus:

    1. NONE

    Other Activities:

    1. NONE

    Clinical Procedures or Imaging Studies:

    1. NONE

    Research Support, Commercial Entities:

    1. NONE

    Research Support, Government Entities:

    1. NONE

    Research Support, Academic Entities:

    1. NONE

    Research Support, Foundations and Societies:

    1. NONE

    Stock/Stock Options/Board of Directors Compensation:

    1. NONE

    License Fee Payments, Technology or Inventions:

    1. NONE

    Royalty Payments, Technology or Inventions:

    1. NONE

    Stock/Stock Options, Research Sponsor:

    1. NONE

    Stock/Stock Options, Medical Equipment & Materials:

    1. NONE

    Legal Proceedings:

    1. NONE

  4. Amaal J. Starling, MD,
    5. Scientific Advisory Boards:

    1. (1) Amgen (2) eNeura (3) Eli Lilly & Company

    Gifts:

    1. NONE

    Funding for Travel or Speaker Honoraria:

    1. (1) eNeura

    Editorial Boards:

    1. NONE

    Patents:

    1. NONE

    Publishing Royalties:

    1. NONE

    Employment, Commercial Entity:

    1. NONE

    Consultancies:

    1. NONE

    Speakers' Bureaus:

    1. NONE

    Other Activities:

    1. NONE

    Clinical Procedures or Imaging Studies:

    1. NONE

    Research Support, Commercial Entities:

    1. NONE

    Research Support, Government Entities:

    1. NONE

    Research Support, Academic Entities:

    1. NONE

    Research Support, Foundations and Societies:

    1. Migraine Research Foundation

    Stock/Stock Options/Board of Directors Compensation:

    1. NONE

    License Fee Payments, Technology or Inventions:

    1. NONE

    Royalty Payments, Technology or Inventions:

    1. NONE

    Stock/Stock Options, Research Sponsor:

    1. NONE

    Stock/Stock Options, Medical Equipment & Materials:

    1. NONE

    Legal Proceedings:

    1. NONE

  5. Steven L. Galetta, MD,
    6. Scientific Advisory Boards:

    1. NONE

    Gifts:

    1. NONE

    Funding for travel or speaker honoraria:

    1. Biogen and Genzyme

    Editorial Boards:

    1. (1) Neurology, Editorial Board; (2) Journal of Neuro-ophthalmology, Editorial Board

    Patents:

    1. NONE

    Publishing Royalties:

    1. NONE

    Employment, Commercial Entity:

    1. NONE

    Consultancies:

    1. Biogen Vaccinex

    Speakers' Bureaus:

    1. NONE

    Other Activities:

    1. NONE

    Clinical Procedures or Imaging Studies:

    1. NONE

    Research Support, Commercial Entities:

    1. NONE

    Research Support, Government Entities:

    1. NONE

    Research Support, Academic Entities:

    1. NONE

    Research Support, Foundations and Societies:

    1. NONE

    Stock/Stock Options/Board of Directors Compensation:

    1. NONE

    License Fee Payments, Technology or Inventions:

    1. NONE

    Royalty Payments, Technology or Inventions:

    1. NONE

    Stock/Stock Options, Research Sponsor:

    1. NONE

    Stock/Stock Options, Medical Equipment & Materials:

    1. NONE

    Legal Proceedings:

    1. NONE

  6. Laura J. Balcer, MD, MSCE,
    7. Scientific Advisory Boards:

    1. Biogen

    Gifts:

    1. NONE

    Funding for travel or speaker honoraria:

    1. Biogen, consulting

    Editorial Boards:

    1. NONE

    Patents:

    1. NONE

    Publishing Royalties:

    1. NONE

    Employment, Commercial Entity:

    1. NONE

    Consultancies:

    1. Biogen, Questcor, Novartis

    Speakers' Bureaus:

    1. NONE

    Other Activities:

    1. NONE

    Clinical Procedures or Imaging Studies:

    1. NONE

    Research Support, Commercial Entities:

    1. Biogen

    Research Support, Government Entities:

    1. NIH/ NINDS - U01 Grant State of New York - ECRIP Grant NIH/NEI

    Research Support, Academic Entities:

    1. NONE

    Research Support, Foundations and Societies:

    1. National MS Society

    Stock/Stock Options/Board of Directors Compensation:

    1. NONE

    License Fee Payments, Technology or Inventions:

    1. NONE

    Royalty Payments, Technology or Inventions:

    1. NONE

    Stock/Stock Options, Research Sponsor:

    1. NONE

    Stock/Stock Options, Medical Equipment & Materials:

    1. NONE

    Legal Proceedings:

    1. NONE

  7. Trenton L. Overall, DO,
    8. Scientific Advisory Boards:

    1. NONE

    Gifts:

    1. NONE

    Funding for Travel or Speaker Honoraria:

    1. NONE

    Editorial Boards:

    1. NONE

    Patents:

    1. NONE

    Publishing Royalties:

    1. NONE

    Employment, Commercial Entity:

    1. NONE

    Consultancies:

    1. NONE

    Speakers' Bureaus:

    1. NONE

    Other Activities:

    1. NONE

    Clinical Procedures or Imaging Studies:

    1. NONE

    Research Support, Commercial Entities:

    1. NONE

    Research Support, Government Entities:

    1. NONE

    Research Support, Academic Entities:

    1. NONE

    Research Support, Foundations and Societies:

    1. NONE

    Stock/Stock Options/Board of Directors Compensation:

    1. NONE

    License Fee Payments, Technology or Inventions:

    1. NONE

    Royalty Payments, Technology or Inventions:

    1. NONE

    Stock/Stock Options, Research Sponsor:

    1. NONE

    Stock/Stock Options, Medical Equipment & Materials:

    1. NONE

    Legal Proceedings:

    1. NONE

  8. Jennifer S. Adler,
    9. Scientific Advisory Boards:

    1. NONE

    Gifts:

    1. NONE

    Funding for Travel or Speaker Honoraria:

    1. NONE

    Editorial Boards:

    1. NONE

    Patents:

    1. NONE

    Publishing Royalties:

    1. NONE

    Employment, Commercial Entity:

    1. NONE

    Consultancies:

    1. NONE

    Speakers' Bureaus:

    1. NONE

    Other Activities:

    1. NONE

    Clinical Procedures or Imaging Studies:

    1. NONE

    Research Support, Commercial Entities:

    1. NONE

    Research Support, Government Entities:

    1. NONE

    Research Support, Academic Entities:

    1. NONE

    Research Support, Foundations and Societies:

    1. NONE

    Stock/Stock Options/Board of Directors Compensation:

    1. NONE

    License Fee Payments, Technology or Inventions:

    1. NONE

    Royalty Payments, Technology or Inventions:

    1. NONE

    Stock/Stock Options, Research Sponsor:

    1. NONE

    Stock/Stock Options, Medical Equipment & Materials:

    1. NONE

    Legal Proceedings:

    1. NONE

  9. Rashmi B. Halker-Singh, MD,
    10. Scientific Advisory Boards:

    1. NONE

    Gifts:

    1. NONE

    Funding for Travel or Speaker Honoraria:

    1. NONE

    Editorial Boards:

    1. Current Neurology and Neuroscience Reports - Headache Section Editor, 2013.

    Patents:

    1. NONE

    Publishing Royalties:

    1. NONE

    Employment, Commercial Entity:

    1. NONE

    Consultancies:

    1. NONE

    Speakers' Bureaus:

    1. NONE

    Other Activities:

    1. NONE

    Clinical Procedures or Imaging Studies:

    1. NONE

    Research Support, Commercial Entities:

    1. NONE

    Research Support, Government Entities:

    1. NONE

    Research Support, Academic Entities:

    1. NONE

    Research Support, Foundations and Societies:

    1. NONE

    Stock/Stock Options/Board of Directors Compensation:

    1. NONE

    License Fee Payments, Technology or Inventions:

    1. NONE

    Royalty Payments, Technology or Inventions:

    1. NONE

    Stock/Stock Options, Research Sponsor:

    1. NONE

    Stock/Stock Options, Medical Equipment & Materials:

    1. NONE

    Legal Proceedings:

    1. NONE

  10. Bert B. Vargas, MD and
    11. Scientific Advisory Boards:

    1. (1) Allergan, (2) Zogenix, (3) Pernix, (4) Alder, (5) Avanir, (6) Lilly

    Gifts:

    1. NONE

    Funding for travel or speaker honoraria:

    1. (1) American Headache Society

    Editorial Boards:

    1. NONE

    Patents:

    1. NONE

    Publishing Royalties:

    1. NONE

    Employment, Commercial Entity:

    1. NONE

    Consultancies:

    1. NONE

    Speakers' Bureaus:

    1. (1) Avanir

    Other Activities:

    1. NONE

    Clinical Procedures or Imaging Studies:

    1. NONE

    Research Support, Commercial Entities:

    1. NONE

    Research Support, Government Entities:

    1. NONE

    Research Support, Academic Entities:

    1. (1) Mayo Clinic

    Research Support, Foundations and Societies:

    1. NONE

    Stock/Stock Options/Board of Directors Compensation:

    1. NONE

    License Fee Payments, Technology or Inventions:

    1. NONE

    Royalty Payments, Technology or Inventions:

    1. NONE

    Stock/Stock Options, Research Sponsor:

    1. NONE

    Stock/Stock Options, Medical Equipment & Materials:

    1. NONE

    Legal Proceedings:

    1. NONE

  11. David Dodick, MD
    12. Scientific Advisory Boards:

    1. ? Consulting: Acorda, Allergan, Amgen, Alder, Dr Reddy?s, Merck, Dr Reddy?s, Promius, eNeura, Eli Lilly & Company, Insys therapeutics, Autonomic Technologies, Teva, Xenon, Tonix, Trigemina, Boston Scientific, GBS, Colucid, Zosano, Laydenburg Thalmann, Biocentric, Biohaven, Magellan, Pfizer (Japan). Royalties: Oxford University Press and Cambridge University Press (Book Royalty). Uptodate ? editorial/honoraria. CME companies honoraria/publishing honoraria/royalites: Chameleon Communications, Medscape, WebMD, Academy for Continued Healthcare Learning, Haymarket Medical Education, Global Scientific Communications, HealthLogix, Academy for Continued Healthcare Learning, Meeting LogiX, Health LogiX, Wiley Blackwell, Oxford University Press, Cambridge University Press. Stock/options: GBS/Nocira, Epien, and Mobile Health. Consulting use agreement: NAS. Board position: King-Devick Inc.

    Gifts:

    1. NONE

    Funding for travel or speaker honoraria:

    1. Reimbursement for travel from Acorda, Allergan, Amgen, Alder, Dr Reddy?s, Merck, Dr Reddy?s, Promius, eNeura, Eli Lilly & Company, Autonomic Technologies, Teva, Trigemina, GBS, Colucid, Zosano, Laydenburg Thalmann, Biocentric, Biohaven, Magellan, Pfizer (Japan). CME companies honoraria/publishing honoraria/royalites: Chameleon Communications, Medscape, WebMD, Academy for Continued Healthcare Learning, Haymarket Medical Education, Global Scientific Communications, HealthLogix, Academy for Continued Healthcare Learning, Meeting LogiX, Health LogiX, Wiley Blackwell, Oxford University Press, Cambridge University Press.

    Editorial Boards:

    1. Editorial board of Headache, Cephalalgia, Lancet Neurology, Postgraduate Medicine

    Patents:

    1. Patent 8,501,195 Injection paradigm for administration of Botulinum Toxins

    Publishing Royalties:

    1. (1) Wolff's Headache 8th edition, Oxford University Press, 2009; (2) Handbook of Headache, Cambridge University Press, 2010. Headache Oxford University Press, 2016.

    Employment, Commercial Entity:

    1. NONE

    Consultancies:

    1. ? Consulting: Acorda, Allergan, Amgen, Alder, Dr Reddy?s, Merck, Dr Reddy?s, Promius, eNeura, Eli Lilly & Company, Insys therapeutics, Autonomic Technologies, Teva, Xenon, Tonix, Trigemina, Boston Scientific, GBS, Colucid, Zosano, Laydenburg Thalmann, Biocentric, Biohaven, Magellan, Pfizer (Japan).

    Speakers' Bureaus:

    1. NONE

    Other Activities:

    1. NONE

    Clinical procedures or imaging studies:

    1. The King-Devick test is used in our clinical practice and was the subject of this study. My particular division would not benefit if the results of this particular study were disseminated as the test is already part of our concussion program and integrated into our clinical assessments.

    Research Support, Commercial Entities:

    1. NONE

    Research Support, Government Entities:

    1. NONE

    Research Support, Academic Entities:

    1. NONE

    Research Support, Foundations and Societies:

    1. NONE

    Stock/Stock Options/Board of Directors Compensation:

    1. NONE

    License Fee Payments, Technology or Inventions:

    1. NONE

    Royalty Payments, Technology or Inventions:

    1. NONE

    Stock/Stock Options, Research Sponsor:

    1. NONE

    Stock/Stock Options, Medical Equipment & Materials:

    1. NONE

    Legal Proceedings:

    1. NONE

  1. Department of Neurology (PSD, LT, AJS, TLO, RBH-S, BBV, DD), Mayo Clinic Arizona, Phoenix; King-Devick Test, Inc. (DL), Oakbrook Terrace, IL; Departments of Neurology (SLG, LJB), Ophthalmology (SLG, LJB), and Population Health (LJB), New York University Langone Medical Center, New York; Departments of Neurology (SLG, LJB) and Biostatistics and Epidemiology (LJB), University of Pennsylvania School of Medicine, Philadelphia; and University of Arizona (JSA), Scottsdale.
  1. Correspondence to:
    Dodick.david{at}mayo.edu

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