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King Devick

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79 papers 25 to 100 followers
By David Rhine MD FRCPC. Emergency medicine. Special interest in concussion management.
https://www.readbyqxmd.com/read/29741916/test-performance-and-test-retest-reliability-of-the-vestibular-ocular-motor-screening-and-king-devick-test-in-adolescent-athletes-during-a-competitive-sport-season
#1
Phillip R Worts, Philip Schatz, Scott O Burkhart
BACKGROUND: The Vestibular/Ocular Motor Screening (VOMS) and King-Devick (K-D) test are tools designed to assess ocular or vestibular function after a sport-related concussion. PURPOSE: To determine the test-retest reliability and rate of false-positive results of the VOMS and K-D test in a healthy athlete sample. STUDY DESIGN: Cohort study (diagnosis); Level of evidence, 2. METHODS: Forty-five healthy high school student-athletes (mean age, 16...
May 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29627029/reported-concussion-incidence-in-youth-community-rugby-union-and-parental-assessment-of-post-head-injury-cognitive-recovery-using-the-king-devick-test
#2
David Silver, Nicola Brown, Conor Gissane
AIM: To assess the frequency of reported head injuries in youth community Rugby Union and determine whether the King-Devick (K-D) test could be used by parents as a means to chart cognitive recovery following head injury. METHODS: A prospective cohort study of 489 junior players (U9-U18) conducted at a community level Rugby Union club over four seasons. All players undertook a baseline K-D test at the start of each season. Players identified with suspected concussion performed the K-D test post injury and results were compared to their most recent baseline assessment...
May 15, 2018: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/29610049/the-king-devick-test-is-a-valid-and-reliable-tool-for-assessing-sport-related-concussion-in-australian-football-a-prospective-cohort-study
#3
Mark Hecimovich, Doug King, Alasdair R Dempsey, Myles Murphy
OBJECTIVES: Sport-related concussion (SRC) research has focused on impaired oculomotor function. The King-Devick (K-D) test measures oculomotor performance and is reported to identify suboptimal brain function. The use of the K-D test in Australian football (AF), a sport involving body contact and tackling, has not been documented. Therefore, the objective of this study was to determine the test-retest reliability and diagnostic accuracy of the K-D test on a sub-elite AF team. DESIGN: Prospective cohort study METHODS: In total, 22 male players (19...
March 28, 2018: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/29601347/test-retest-reliability-and-the-effects-of-exercise-on-the-king-devick-test
#4
Ryan Eddy, John Goetschius, Jay Hertel, Jacob Resch
OBJECTIVE: To determine the test-retest reliability and the influence of exercise on King-Devick (K-D) test performance. DESIGN: Crossover study design. SETTING: Controlled laboratory. PARTICIPANTS: Participants consisted of 63 (39 women and 24 men) healthy, recreationally active college students who were 21.0 + 1.5 years of age. INDEPENDENT VARIABLES: Participants completed the K-D test using a 2-week, test-retest interval...
March 27, 2018: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/29553882/correlating-the-king-devick-test-with-vestibular-ocular-motor-screening-in-adolescent-patients-with-concussion-a-pilot-study
#5
Shira Russell-Giller, Diana Toto, Mike Heitzman, Mustafa Naematullah, John Shumko
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...
March 1, 2018: Sports Health
https://www.readbyqxmd.com/read/29513549/reliability-and-normative-reference-values-for-the-vestibular-ocular-motor-screening-voms-tool-in-youth-athletes
#6
Ryan N Moran, Tracey Covassin, R J Elbin, Dan Gould, Sally Nogle
BACKGROUND: The Vestibular/Ocular Motor Screening (VOMS) measure is a newly developed vestibular and ocular motor symptom provocation screening tool for sport-related concussions. Baseline data, psychometric properties, and reliability of the VOMS are needed to further understand the applications of this tool, especially in the youth population, where research is scarce. PURPOSE: To establish normative data and document the internal consistency and false-positive rate of the VOMS in a sample of nonconcussed youth athletes...
May 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29488253/visual-problems-associated-with-traumatic-brain-injury
#7
REVIEW
Richard A Armstrong
Traumatic brain injury (TBI) and its associated concussion are major causes of disability and death. All ages can be affected but children, young adults and the elderly are particularly susceptible. A decline in mortality has resulted in many more individuals living with a disability caused by TBI including those affecting vision. This review describes: (1) the major clinical and pathological features of TBI; (2) the visual signs and symptoms associated with the disorder; and (3) discusses the assessment of quality of life and visual rehabilitation of the patient...
February 28, 2018: Clinical & Experimental Optometry: Journal of the Australian Optometrical Association
https://www.readbyqxmd.com/read/29456902/review-of-assessment-scales-for-diagnosing-and-monitoring-sports-related-concussion
#8
REVIEW
Alexa M Dessy, Frank J Yuk, Akbar Y Maniya, Alex Gometz, Jonathan J Rasouli, Mark R Lovell, Tanvir F Choudhri
Sports-related concussion has emerged as a public health crisis due to increased diagnosis of the condition and increased participation in organized and recreational athletics worldwide. Under-recognition of concussions can lead to premature clearance for athletic participation, leaving athletes vulnerable to repeat injury and subsequent short- and long-term complications. There is overwhelming evidence that assessment and management of sports-related concussions should involve a multifaceted approach. A number of assessment criteria have been developed for this purpose...
December 7, 2017: Curēus
https://www.readbyqxmd.com/read/29431168/king-devick-test-identifies-real-time-concussion-and-asymptomatic-concussion-in-youth-athletes
#9
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
Background: Sports concussion has an annual incidence of approximately 3.8 million. Over half go unreported and a substantial number may be asymptomatic. A rapid, cost-effective, and reliable tool that facilitates diagnosis of concussion is needed. The King-Devick (K-D) test is a vision-based tool of rapid number naming for assessment of concussion. In this study, we evaluated the utility of the K-D test in real time for identification of symptomatic concussion in youth athletes and to determine if similar impairment (subclinical concussion) exists in youth athletes without an obvious head injury or symptoms...
December 2017: Neurology. Clinical Practice
https://www.readbyqxmd.com/read/29421971/sideline-concussion-assessment-the-king-devick-test-in-canadian-professional-football
#10
Dhiren Naidu, Carley Borza, Tara Kobitowich, Martin Mrazik
Sideline assessment tools are an important component of concussion evaluations. To date, there has been little data evaluating the clinical utility of these tests in professional football. The purpose of this study was to evaluate the clinical utility of the King-Devick (K-D) test in evaluating concussions in professional football players. Baseline data was collected over two consecutive seasons in the Canadian Football League as part of a comprehensive medical baseline evaluation. A pilot study with the K-D test began in 2015 with 306 participants and the next year (2016) there were 917 participants...
April 30, 2018: Journal of Neurotrauma
https://www.readbyqxmd.com/read/29246592/risk-factors-associated-with-baseline-king-devick-performance
#11
R Moran, T Covassin
OBJECTIVE: This study examined the effect of baseline risk factors on the King-Devick (K-D) test in youth athletes, including of age, sex, and history of concussion. METHODS: A total of 422 youth football and soccer athletes between the ages of 8 and 14 completed a baseline K-D test prior to the start of their respective seasons. Participant age, sex, and history of concussion were analyzed for K-D performance (i.e., errors and baseline time). A series of Mann-Whitney U tests were conducted to determine the effects of risk factors on performance...
December 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/29115854/baseline-king-devick-scores-for-adults-are-not-generalizable-however-age-and-education-influence-scores
#12
Heather Dillon Anderson, Scott A Biely
OBJECTIVE: To establish normative values for the King-Devick (K-D) test to be used as a reference for determining impairment related to concussion when individual baseline scores are lacking. METHOD: Baseline K-D scores were collected for 243 participants aged 18-86. RESULTS: The mean age of subjects was 40.46; range 18-86 years. The mean time was 42.2 seconds; 26.19-75.96 seconds. There was a relationship (r = 0.376) between K-D score and age; scores increased (worsened) with age...
2017: Brain Injury: [BI]
https://www.readbyqxmd.com/read/29064869/vision-and-vestibular-system-dysfunction-predicts-prolonged-concussion-recovery-in-children
#13
Christina L Master, Stephen R Master, Douglas J Wiebe, Eileen P Storey, Julia E Lockyer, Olivia E Podolak, Matthew F Grady
OBJECTIVE: Up to one-third of children with concussion have prolonged symptoms lasting beyond 4 weeks. Vision and vestibular dysfunction is common after concussion. It is unknown whether such dysfunction predicts prolonged recovery. We sought to determine which vision or vestibular problems predict prolonged recovery in children. DESIGN: A retrospective cohort of pediatric patients with concussion. SETTING: A subspecialty pediatric concussion program...
March 2018: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/29035981/clinical-utility-of-oculomotor-and-electrophysiological-measures-in-identifying-concussion-history
#14
Patrick S Ledwidge, Jessie N Patterson, Dennis L Molfese, Julie A Honaker
OBJECTIVE: To examine whether oculomotor and electrophysiological measures improve the clinical performance of the typical concussion protocol for classifying collegiate athletes with a history of concussion. DESIGN: Cross-sectional. SETTING: University Athletic Medicine and Research Facility. PARTICIPANTS: Forty-five varsity collegiate athletes. INDEPENDENT VARIABLES: Collegiate varsity athletes with or without a history of a diagnosed concussion...
October 10, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/28885451/visual-structure-and-function-in-collision-sport-athletes
#15
Danielle Leong, Christina Morettin, Leonard V Messner, Robert J Steinmetz, Yi Pang, Steven L Galetta, Laura J Balcer
BACKGROUND: Vision-based measures have been shown to be useful markers in multiple sclerosis (MS), Alzheimer and Parkinson disease. Therefore, these testing paradigms may have applications to populations explaining repetitive head trauma that has been associated with long-term neurodegenerative sequelae. We investigated retinal structure and visual function in professional collision sport athletes compared to age- and race-matched control participants. METHODS: In this cross-sectional study, participants underwent spectral-domain optical coherence tomography (OCT) measurements of peripapillary retinal nerve fiber layer (RNFL) and macular ganglion cell complex (GCC = ganglion cell + inner plexiform layers) thickness...
September 6, 2017: Journal of Neuro-ophthalmology: the Official Journal of the North American Neuro-Ophthalmology Society
https://www.readbyqxmd.com/read/28859119/characteristics-of-the-king-devick-test-in-the-assessment-of-concussed-patients-in-the-subacute-and-later-stages-after-injury
#16
Arsenije Subotic, Windsor Kwan-Chun Ting, Michael D Cusimano
Although the King-Devick (K-D) test has been used frequently in assessing sports related concussion early after injury, its characteristics over time after injury and in patients with prolonged persistent symptoms are unknown. The purpose of this paper was to: evaluate the ability of the K-D Test to distinguish patients seen early after concussion from those with symptoms persisting more than 3 months compared to controls, assess changes in the K-D test times over time after concussion, and determine the relationship of K-D times to the Stroop Color and Word Test scores...
2017: PloS One
https://www.readbyqxmd.com/read/28778826/less-efficient-oculomotor-performance-is-associated-with-increased-incidence-of-head-impacts-in-high-school-ice-hockey
#17
Adam W Kiefer, Christopher DiCesare, Patrick Nalepka, Kim Barber Foss, Staci Thomas, Gregory D Myer
OBJECTIVES: To evaluate associations between pre-season oculomotor performance on visual tracking tasks and in-season head impact incidence during high school boys ice hockey. DESIGN: Prospective observational study design. METHODS: Fifteen healthy high school aged male hockey athletes (M=16.50±1.17years) performed two 30s blocks each of a prosaccade and self-paced saccade task, and two trials each of a slow, medium, and fast smooth pursuit task (90°s-1 ; 180°s-1 ; 360°s-1 ) during the pre-season...
January 2018: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/27122448/comment-on-article-king-devick-test-reference-values-and-associations-with-balance-measures-in-high-school-american-football-players
#18
LETTER
Steve Devick
No abstract text is available yet for this article.
May 2016: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/28746058/rapid-number-naming-and-quantitative-eye-movements-may-reflect-contact-sport-exposure-in-a-collegiate-ice-hockey-cohort
#19
Lisena Hasanaj, Sujata P Thawani, Nikki Webb, Julia D Drattell, Liliana Serrano, Rachel C Nolan, Jenelle Raynowska, Todd E Hudson, John-Ross Rizzo, Weiwei Dai, Bryan McComb, Judith D Goldberg, Janet C Rucker, Steven L Galetta, Laura J Balcer
BACKGROUND: The King-Devick (K-D) test of rapid number naming is a reliable visual performance measure that is a sensitive sideline indicator of concussion when time scores worsen (lengthen) from preseason baseline. Within cohorts of youth athletes <18 years old, baseline K-D times become faster with increasing age. We determined the relation of rapid number-naming time scores on the K-D test to electronic measurements of saccade performance during preseason baseline assessments in a collegiate ice hockey team cohort...
March 2018: Journal of Neuro-ophthalmology: the Official Journal of the North American Neuro-Ophthalmology Society
https://www.readbyqxmd.com/read/28716270/rapid-sideline-performance-meets-outpatient-clinic-results-from-a-multidisciplinary-concussion-center-registry
#20
G Kyle Harrold, Lisena Hasanaj, Nicholas Moehringer, Isis Zhang, Rachel Nolan, Liliana Serrano, Jenelle Raynowska, Janet C Rucker, Steven R Flanagan, Dennis Cardone, Steven L Galetta, Laura J Balcer
OBJECTIVE: This study investigated the utility of sideline concussion tests, including components of the Sports Concussion Assessment Tool, 3rd Edition (SCAT3) and the King-Devick (K-D), a vision-based test of rapid number naming, in an outpatient, multidisciplinary concussion center treating patients with both sports-related and non-sports related concussions. The ability of these tests to predict clinical outcomes based on the scores at the initial visit was evaluated. METHODS: Scores for components of the SCAT3 and the K-D were fit into regression models accounting for age, gender, and sport/non-sport etiology in order to predict clinical outcome measures including total number of visits to the concussion center, whether the patient reached a SCAT3 symptom severity score≤7, and the total types of referrals each patient received over their course...
August 15, 2017: Journal of the Neurological Sciences
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