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King-Devick

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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/29563095/king-devick-concussion-test-performs-poorly-as-a-screening-tool-in-elite-rugby-union-players-a-prospective-cohort-study-of-two-screening-tests-versus-a-clinical-reference-standard
#5
Gordon Ward Fuller, Matthew J Cross, Keith A Stokes, Simon P T Kemp
BACKGROUND: The King-Devick (KD) test is an objective clinical test of eye movements that has been used to screen for concussion. We characterised the accuracy of the KD test and the World Rugby Head Injury Assessment (HIA-1) screening tools as methods of off-field evaluation for concussion after a suspicious head impact event. METHODS: A prospective cohort study was performed in elite English rugby union competitions between September 2016 and May 2017. The study population comprised consecutive players identified with a head impact event with the potential to result in concussion...
March 21, 2018: British Journal of Sports 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
#6
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/29456902/review-of-assessment-scales-for-diagnosing-and-monitoring-sports-related-concussion
#7
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
#8
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
#9
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/29364897/slower-saccadic-reading-in-parkinson-s-disease
#10
Naz Jehangir, Caroline Yizhu Yu, Jeehey Song, Mohammad Ali Shariati, Steven Binder, Jill Beyer, Veronica Santini, Kathleen Poston, Yaping Joyce Liao
Idiopathic Parkinson's Disease (PD) is characterized by degeneration of dopaminergic and other neurons, leading to motor and non-motor deficits. Abnormal eye movements in PD, including fixations, saccades, and convergence, are well described. However, saccadic reading, which requires serial and alternating saccades and fixations, is not well studied, despite its obvious impact on the quality of life. In this study, we assessed saccadic reading using variations of the King-Devick (KD) test, a rapid single digit number naming test, as a way to assess the ability to make serial left-to-right ocular motor movements necessary for reading...
2018: PloS One
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/29211506/validity-of-low-resolution-eye-tracking-to-assess-eye-movements-during-a-rapid-number-naming-task-performance-of-the-eyetribe-eye-tracker
#12
Jenelle Raynowska, John-Ross Rizzo, Janet C Rucker, Weiwei Dai, Joel Birkemeier, Julian Hershowitz, Ivan Selesnick, Laura J Balcer, Steven L Galetta, Todd Hudson
OBJECTIVE: To evaluate the performance of the EyeTribe compared to the EyeLink for eye movement recordings during a rapid number naming test in healthy control participants. BACKGROUND: With the increasing accessibility of portable, economical, video-based eye trackers such as the EyeTribe, there is growing interest in these devices for eye movement recordings, particularly in the domain of sports-related concussion. However, prior to implementation there is a primary need to establish the validity of these devices...
2018: Brain Injury: [BI]
https://www.readbyqxmd.com/read/29190849/concussion-recovery-phase-affects-vestibular-and-oculomotor-symptom-provocation
#13
Kelly M Cheever, Jane McDevitt, Ryan Tierney, W Geoffrey Wright
Vestibular and oculomotor testing is emerging as a valuable assessment in sport-related concussion (SRC). However, their usefulness for tracking recovery and guiding return-to-play decisions remains unclear. Therefore the purpose of this study was to evaluate their clinical usefulness for tracking SRC recovery. Vestibular and oculomotor assessments were used to measure symptom provocation in an acute group (n=21) concussed≤10 days, prolonged symptoms group (n=10) concussed ≥16 days (median=84 days), healthy group (n=58) no concussions in >6 months...
February 2018: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/29120225/descriptive-values-for-dancers-on-baseline-concussion-tools
#14
Lauren McIntyre, Marc Campo
CONTEXT:   Capturing baseline data before a concussion can be a valuable tool in individualized care. However, not all athletes, including dancers, have access to baseline testing. When baseline examinations were not performed, clinicians consult normative values. Dancers are unique athletes; therefore, describing values specific to dancers may assist those working with these athletes in making more informed decisions. OBJECTIVE:   To describe values for key concussion measures of dancers...
November 2017: Journal of Athletic Training
https://www.readbyqxmd.com/read/29115854/baseline-king-devick-scores-for-adults-are-not-generalizable-however-age-and-education-influence-scores
#15
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/28900564/relationships-among-common-vision-and-vestibular-tests-in-healthy-recreational-athletes
#16
John D Heick, Curt Bay, Thomas P Dompier, Tamara C Valovich McLeod
BACKGROUND: Disruption of the visual and vestibular systems is commonly observed following concussion. Researchers have explored the utility of screening tools to identify deficits in these systems in concussed patients, but it is unclear if these tests are measuring similar or distinct phenomena. PURPOSE: To determine the relationships between common vestibular tests including the King-Devick (K-D) test, Sensory Organization Test (SOT), Head Shake-Sensory Organization Test (HS-SOT), and Dynamic Visual Acuity (DVA) test, when administered contiguously, to healthy recreational athletes aged 14 to 24 years...
August 2017: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/28885451/visual-structure-and-function-in-collision-sport-athletes
#17
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
#18
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/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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