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King Devick

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49 papers 25 to 100 followers
By David Rhine MD FRCPC. Emergency medicine. Special interest in concussion management.
https://www.readbyqxmd.com/read/28270437/what-are-the-critical-elements-of-sideline-screening-that-can-be-used-to-establish-the-diagnosis-of-concussion-a-systematic-review
#1
REVIEW
Jon Patricios, Gordon Ward Fuller, Richard Ellenbogen, Stanley Herring, Jeffrey S Kutcher, Mike Loosemore, Michael Makdissi, Michael McCrea, Margot Putukian, Kathryn J Schneider
BACKGROUND: Sideline detection is the first and most significant step in recognising a potential concussion and removing an athlete from harm. This systematic review aims to evaluate the critical elements aiding sideline recognition of potential concussions including screening tools, technologies and integrated assessment protocols. DATA SOURCES: Bibliographic databases, grey literature repositories and relevant websites were searched from 1 January 2000 to 30 September 2016...
March 7, 2017: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/28258820/the-king-devick-k-d-test-and-concussion-diagnosis-in-semi-professional-rugby-union-players
#2
John H Molloy, Ian Murphy, Conor Gissane
OBJECTIVES: To determine the utility of the King-Devick (K-D) test in identifying sports-related concussion in semi-professional rugby players. DESIGN: Descriptive cohort study. METHODS: 176 male players were recruited from a semi-professional rugby union competition in New Zealand (NZ). Baseline K-D scores were obtained in the pre-season. Post-match K-D and Pitch Side Concussion Assessment Version 2 (PSCA2) scores were obtained in those with suspected concussion...
February 28, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28257277/the-effect-of-in-school-saccadic-training-on-reading-fluency-and-comprehension-in-first-and-second-grade-students
#3
David Dodick, Amaal J Starling, Jennifer Wethe, Yi Pang, Leonard V Messner, Craig Smith, Christina L Master, Rashmi B Halker-Singh, Bert B Vargas, Jamie M Bogle, Jay Mandrekar, Alexandra Talaber, Danielle Leong
Efficient eye movements provide a physical foundation for proficient reading skills. We investigated the effect of in-school saccadic training on reading performance. In this cross-over design, study participants (n = 327, 165 males; mean age [SD]: 7 y 6 mo [1y 1 mo]) were randomized into treatment and control groups, who then underwent eighteen 20-minute training sessions over 5 weeks using King-Devick Reading Acceleration Program Software. Pre- and posttreatment reading assessments included fluency, comprehension, and rapid number naming performance...
January 2017: Journal of Child Neurology
https://www.readbyqxmd.com/read/28192036/using-acute-performance-on-a-comprehensive-neurocognitive-vestibular-and-ocular-motor-assessment-battery-to-predict-recovery-duration-after-sport-related-concussions
#4
Alicia M Sufrinko, Gregory F Marchetti, Paul E Cohen, R J Elbin, Valentina Re, Anthony P Kontos
BACKGROUND: A sport-related concussion (SRC) is a heterogeneous injury that requires a multifaceted and comprehensive approach for diagnosis and management, including symptom reports, vestibular/ocular motor assessments, and neurocognitive testing. PURPOSE: To determine which acute (eg, within 7 days) vestibular, ocular motor, neurocognitive, and symptom impairments predict the duration of recovery after an SRC. STUDY DESIGN: Cohort study (prognosis); Level of evidence, 2...
February 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/27668641/academic-difficulty-and-vision-symptoms-in-children-with-concussion
#5
Mark W Swanson, Katherine K Weise, Laura E Dreer, James Johnston, Richard D Davis, Drew Ferguson, Matthew Heath Hale, Sara J Gould, Jennifer B Christy, Claudio Busettini, Sarah D Lee, Erin Swanson
PURPOSE: Academic difficulty is reported in children with prolonged post-concussive symptoms. Despite growing evidence that vestibular-ocular and vision-specific dysfunction are common in children after concussion, vision is rarely mentioned in return-to-learn protocols. The purpose of this project was to evaluate a cohort of children with prolonged post-concussive symptoms to determine if vision symptoms are associated with those reporting academic difficulty. METHODS: Data were obtained from the Children's of Alabama Concussion Clinic REDCap dataset from the period January 2007 to October 2013...
January 2017: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/28107216/analysis-of-central-and-peripheral-vision-reaction-times-in-patients-with-postconcussion-visual-dysfunction
#6
Joseph F Clark, James K Ellis, Timothy M Burns, John M Childress, Jon G Divine
OBJECTIVE: To determine whether central and peripheral vision reaction times (PVRTs) are prolonged in patients with visual dysfunction after sustaining a concussion. DESIGN: Comparison of Dynavision D2 central and PVRTs in patients with postconcussion visual dysfunction were compared with control data from a normative patient database. Concussion patients without visual dysfunction were not included in this study. SETTING: National Collegiate Athletic Association Division 1 college training room and university based, academic health center...
January 19, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/28065993/the-utility-of-the-king-devick-test-as-a-sideline-assessment-tool-for-sport-related-concussions-a-narrative-review
#7
Scott Howitt, Robert Brommer, Justin Fowler, Logan Gerwing, Julian Payne, Christopher DeGraauw
OBJECTIVE: The objective of this paper is to review existing literature surrounding the utility of the King-Devick test which is a commonly used sideline assessment tool for sport-related concussions. METHODS: A review of the literature was performed using MEDLINE, CINHAL, and SportDiscus databases. The search was performed from the beginning of the record through November 16(th), 2015. RESULTS: This search strategy yielded 27 articles from aforementioned databases...
December 2016: Journal of the Canadian Chiropractic Association
https://www.readbyqxmd.com/read/27835042/cervical-injury-assessments-for-concussion-evaluation-a-review
#8
REVIEW
Kelly Cheever, Keisuke Kawata, Ryan Tierney, Anne Galgon
BACKGROUND: A concussion is a complex pathophysiologic process that is induced by biomechanical forces and affects the brain. Cervical injuries and concussion can share similar mechanisms and nearly identical symptoms or causes. Therefore, symptoms or causes alone may be insufficient to differentiate between patients with a concussion and patients with cervical injuries. OBJECTIVE: To demonstrate the homogeneous causes and symptoms observed in patients with a concussion and patients with cervical injury and to provide information on clinical tests that can differentiate cervical injury from pathologic conditions of vestibular or central origin...
December 2016: Journal of Athletic Training
https://www.readbyqxmd.com/read/27834667/validity-and-reliability-of-the-vestibular-ocular-motor-screening-and-associations-with-common-concussion-screening-tools
#9
Amy M Yorke, Laura Smith, Mitch Babcock, Bara Alsalaheen
BACKGROUND: Sustaining a concussion commonly results in vestibular impairments that may be associated with balance deficits. To screen for vestibular impairments after a concussion, the Vestibular/Ocular Motor Screening (VOMS) tool was developed. The relationship between the VOMS and other concussion screening tools, such as the Balance Error Scoring System (BESS) and King-Devick (K-D), have not been explored. HYPOTHESES: (1) VOMS would provide reliable results and not provoke symptoms in healthy adolescents and (2) VOMS test items would measure related aspects of vestibular function that are not measured through the BESS or K-D...
March 2017: Sports Health
https://www.readbyqxmd.com/read/27752515/rapid-number-naming-in-chronic-concussion-eye-movements-in-the-king-devick-test
#10
John-Ross Rizzo, Todd E Hudson, Weiwei Dai, Joel Birkemeier, Rosa M Pasculli, Ivan Selesnick, Laura J Balcer, Steven L Galetta, Janet C Rucker
OBJECTIVE: The King-Devick (KD) test, which is based on rapid number naming speed, is a performance measure that adds vision and eye movement assessments to sideline concussion testing. We performed a laboratory-based study to characterize ocular motor behavior during the KD test in a patient cohort with chronic concussion to identify features associated with prolonged KD reading times. METHODS: Twenty-five patients with a concussion history (mean age: 31) were compared to control participants with no concussion history (n = 42, mean age: 32)...
October 2016: Annals of Clinical and Translational Neurology
https://www.readbyqxmd.com/read/27646958/assessment-of-the-king-devick%C3%A2-kd-test-for-screening-acute-mtbi-concussion-in-warfighters
#11
David V Walsh, José E Capó-Aponte, Thomas Beltran, Wesley R Cole, Ashley Ballard, Joseph Y Dumayas
OBJECTIVES: The Department of Defense reported that 344,030 cases of traumatic brain injury (TBI) were clinically confirmed from 2000 to 2015, with mild TBI (mTBI) accounting for 82.3% of all cases. Unfortunately, warfighters with TBI are often identified only when moderate or severe head injuries have occurred, leaving more subtle mTBI cases undiagnosed. This study aims to identify and validate an eye-movement visual test for screening acute mTBI. METHODS: Two-hundred active duty military personnel were recruited to perform the King-Devick® (KD) test...
November 15, 2016: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/27584387/reliability-of-the-king-devick-test-in-baseline-concussion-evaluations-of-high-school-athletes-2261-board-1-june-2-3-15-pm-5-15-pm
#12
James Patrick MacDonald, Iris Petersen, Douglas Kyrouac
No abstract text is available yet for this article.
May 2016: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/27464573/king-devick-and-pre-season-visual-function-in-adolescent-athletes
#13
Katherine K Weise, Mark W Swanson, Kimberly Penix, Matthew Heath Hale, Drew Ferguson
PURPOSE: The King-Devick test (KD) has been studied as a remove-from-play sideline test in college-age athletes and older; however, studies in younger athletes are limited. A cross-sectional study of the KD and other vision correlates was completed on school-aged athletes during pre-season physicals for a variety of sports to determine the repeatability of the KD. The study also evaluated how convergence, alignment, or pupil function contributed to a slower King-Devick baseline reading...
January 2017: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/27360755/an-assessment-of-population-based-norms-in-child-and-adolescent-on-the-king-devick-1930-board-82-june-2-3-30-pm-5-00-pm
#14
Eric W Slattery, Kelsey Logan, Paul Gubanich
No abstract text is available yet for this article.
May 2016: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/27176886/vestibular-and-oculomotor-assessments-may-increase-accuracy-of-subacute-concussion-assessment
#15
J McDevitt, K O Appiah-Kubi, R Tierney, W G Wright
In this study, we collected and analyzed preliminary data for the internal consistency of a new condensed model to assess vestibular and oculomotor impairments following a concussion. We also examined this model's ability to discriminate concussed athletes from healthy controls. Each participant was tested in a concussion assessment protocol that consisted of the Neurocom's Sensory Organization Test (SOT), Balance Error Scoring System exam, and a series of 8 vestibular and oculomotor assessments. Of these 10 assessments, only the SOT, near point convergence, and the signs and symptoms (S/S) scores collected following optokinetic stimulation, the horizontal eye saccades test, and the gaze stabilization test were significantly correlated with health status, and were used in further analyses...
August 2016: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/26944155/objectifying-eye-movements-during-rapid-number-naming-methodology-for-assessment-of-normative-data-for-the-king-devick-test
#16
John-Ross Rizzo, Todd E Hudson, Weiwei Dai, Ninad Desai, Arash Yousefi, Dhaval Palsana, Ivan Selesnick, Laura J Balcer, Steven L Galetta, Janet C Rucker
OBJECTIVE: Concussion is a major public health problem and considerable efforts are focused on sideline-based diagnostic testing to guide return-to-play decision-making and clinical care. The King-Devick (K-D) test, a sensitive sideline performance measure for concussion detection, reveals slowed reading times in acutely concussed subjects, as compared to healthy controls; however, the normal behavior of eye movements during the task and deficits underlying the slowing have not been defined...
March 15, 2016: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/26648587/king-devick-test-reference-values-and-associations-with-balance-measures-in-high-school-american-football-players
#17
B Alsalaheen, J Haines, A Yorke, J Diebold
The King-Devick test appears to be a promising tool in screening for concussions. However, limited evidence exists on the baseline associations between the K-D test and age and baseline screening tools used after concussion. Additionally, there are no published reference values for the K-D test in high school football players. The K-D test, the Balance Error Scoring System, and the Limits of Stability (LOS) test were administered to 157 high school football players. Additionally, a subsample of 62 participants completed the test twice to examine the reliability of K-D test...
February 2016: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/26444405/the-concussion-toolbox-the-role-of-vision-in-the-assessment-of-concussion
#18
REVIEW
Rachel E Ventura, Laura J Balcer, Steven L Galetta
Concussion may lead to subtle changes in brain function, and tests involving the visual system probe higher cortical functioning and increase our sensitivity in detecting these changes. Concussions are acutely and sometimes more persistently associated with abnormalities in balance, cognition, and vision. The visual system involves roughly half of the brain's circuits, including many regions susceptible to head impacts. After a concussion, the neuro-ophthalmologic exam commonly detects abnormalities in convergence, accommodation, the vestibulo-ocular reflex, ocular muscle balance, saccades, and pursuit...
October 2015: Seminars in Neurology
https://www.readbyqxmd.com/read/26398492/detection-of-subtle-cognitive-changes-after-mtbi-using-a-novel-tablet-based-task
#19
Tara D Fischer, Stuart D Red, Alice Z Chuang, Elizabeth B Jones, James J McCarthy, Saumil S Patel, Anne B Sereno
This study examined the potential for novel tablet-based tasks, modeled after eye tracking techniques, to detect subtle sensorimotor and cognitive deficits after mild traumatic brain injury (mTBI). Specifically, we examined whether performance on these tablet-based tasks (Pro-point and Anti-point) was able to correctly categorize concussed versus non-concussed participants, compared with performance on other standardized tests for concussion. Patients admitted to the emergency department with mTBI were tested on the Pro-point and Anti-point tasks, a current standard cognitive screening test (i...
July 1, 2016: Journal of Neurotrauma
https://www.readbyqxmd.com/read/26152829/use-of-the-king-devick-test-for-sideline-concussion-screening-in-junior-rugby-league
#20
D King, P Hume, C Gissane, T Clark
AIM: To determine whether the King-Devick (K-D) test used as a sideline test in junior rugby league players over 12 matches in a domestic competition season could identify witnessed and incidentally identified episodes of concussion. METHODS: A prospective observational cohort study of a club level junior rugby league team (n=19) during the 2014 New Zealand competition season involved every player completing two pre-competition season baseline trials of the K-D test...
October 15, 2015: Journal of the Neurological Sciences
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