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https://www.readbyqxmd.com/read/28206829/validity-of-low-contrast-letter-acuity-as-a-visual-performance-outcome-measure-for-multiple-sclerosis
#1
Laura J Balcer, Jenelle Raynowska, Rachel Nolan, Steven L Galetta, Raju Kapoor, Ralph Benedict, Glenn Phillips, Nicholas LaRocca, Lynn Hudson, Richard Rudick
Low-contrast letter acuity (LCLA) has emerged as the leading outcome measure to assess visual disability in multiple sclerosis (MS) research. As visual dysfunction is one of the most common manifestations of MS, sensitive visual outcome measures are important in examining the effect of treatment. Low-contrast acuity captures visual loss not seen in high-contrast visual acuity (HCVA) measurements. These issues are addressed by the MS Outcome Assessments Consortium (MSOAC), including representatives from advocacy organizations, Food and Drug Administration (FDA), European Medicines Agency (EMA), National Institute of Neurological Disorders and Stroke (NINDS), academic institutions, and industry partners along with persons living with MS...
February 1, 2017: Multiple Sclerosis: Clinical and Laboratory Research
https://www.readbyqxmd.com/read/28079758/concussion-in-ice-hockey-current-gaps-and-future-directions-in-an-objective-diagnosis
#2
Aynsley M Smith, Michael J Stuart, William O Roberts, David W Dodick, Jonathan T Finnoff, Janelle K Jorgensen, David A Krause
OBJECTIVE: This review provides an update on sport-related concussion (SRC) in ice hockey and makes a case for changes in clinical concussion evaluation. Standard practice should require that concussions be objectively diagnosed and provide quantitative measures of the concussion injury that will serve as a platform for future evidence-based treatment. METHODS: The literature was surveyed to address several concussion-related topics: research in ice hockey-related head trauma, current subjective diagnosis, promising components of an objective diagnosis, and current and potential treatments...
January 10, 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
#3
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/27856005/mobile-universal-lexicon-evaluation-system-mules-test-a-new-measure-of-rapid-picture-naming-for-concussion
#4
Lucy Cobbs, Lisena Hasanaj, Prin Amorapanth, John-Ross Rizzo, Rachel Nolan, Liliana Serrano, Jenelle Raynowska, Janet C Rucker, Barry D Jordan, Steven L Galetta, Laura J Balcer
OBJECTIVE: This study introduces a rapid picture naming test, the Mobile Universal Lexicon Evaluation System (MULES), as a novel, vision-based performance measure for concussion screening. The MULES is a visual-verbal task that includes 54 original photographs of fruits, objects and animals. We piloted MULES in a cohort of volunteers to determine feasibility, ranges of picture naming responses, and the relation of MULES time scores to those of King-Devick (K-D), a rapid number naming test...
January 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/27834667/validity-and-reliability-of-the-vestibular-ocular-motor-screening-and-associations-with-common-concussion-screening-tools
#5
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
#6
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
#7
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
#8
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
#9
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
#10
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/27299935/screening-utility-of-the-king-devick-test-in-mild-cognitive-impairment-and-alzheimer-disease-dementia
#11
Kristin M Galetta, Kimberly R Chapman, Maritza D Essis, Michael L Alosco, Danielle Gillard, Eric Steinberg, Diane Dixon, Brett Martin, Christine E Chaisson, Neil W Kowall, Yorghos Tripodis, Laura J Balcer, Robert A Stern
The King-Devick (K-D) test is a 1 to 2 minute, rapid number naming test, often used to assist with detection of concussion, but also has clinical utility in other neurological conditions (eg, Parkinson disease). The K-D involves saccadic eye and other eye movements, and abnormalities thereof may be an early indicator of Alzheimer disease (AD)-associated cognitive impairment. No study has tested the utility of the K-D in AD and we sought to do so. The sample included 206 [135 controls, 39 mild cognitive impairment (MCI), and 32 AD dementia] consecutive subjects from the Boston University Alzheimer's Disease Center registry undergoing their initial annual evaluation between March 2013 and July 2015...
June 13, 2016: Alzheimer Disease and Associated Disorders
https://www.readbyqxmd.com/read/26944155/objectifying-eye-movements-during-rapid-number-naming-methodology-for-assessment-of-normative-data-for-the-king-devick-test
#12
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/26810521/ocular-motor-assessment-in-concussion-current-status-and-future-directions
#13
REVIEW
Rachel E Ventura, Laura J Balcer, Steven L Galetta, Janet C Rucker
Mild head injury such as concussions and subconcussive repetitive impact may lead to subtle changes in brain function and it is imperative to find sensitive and reliable tests to detect such changes. Tests involving the visual system, in particular eye movements, can incorporate higher cortical functioning and involve diffuse pathways in the brain, including many areas susceptible to head impact. With concussions, the clinical neuro-ophthalmic exam is important for detecting abnormalities in vergence, saccades, pursuit, and visual fixation...
February 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
#14
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
#15
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/26291632/oculomotor-based-vision-assessment-in-mild-traumatic-brain-injury-a-systematic-review
#16
Anne W Hunt, Katherine Mah, Nick Reed, Lisa Engel, Michelle Keightley
OBJECTIVE: The purpose of this article is to synthesize and appraise the evidence regarding the use of oculomotor-based vision assessment to identify and monitor recovery from mild traumatic brain injury (mTBI). Specific objectives are to (1) identify changes in oculomotor-based vision following mTBI; (2) distinguish methods of assessment; (3) appraise the level and quality of evidence; and, if warranted, (4) determine clinical recommendations for assessment. METHODS: A systematic review was undertaken to identify and appraise relevant literature...
July 2016: Journal of Head Trauma Rehabilitation
https://www.readbyqxmd.com/read/26152829/use-of-the-king-devick-test-for-sideline-concussion-screening-in-junior-rugby-league
#17
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
https://www.readbyqxmd.com/read/26094155/evaluation-of-the-king-devick-test-as-a-concussion-screening-tool-in-high-school-football-players
#18
Daniel H Seidman, Jennifer Burlingame, Lina R Yousif, Xinh P Donahue, Joshua Krier, Lydia J Rayes, Rachel Young, Muareen Lilla, Rochelle Mazurek, Kristie Hittle, Charles McCloskey, Saroj Misra, Michael K Shaw
OBJECTIVE: Concussion is the most common type of traumatic brain injury, and results from impact or impulsive forces to the head, neck or face. Due to the variability and subtlety of symptoms, concussions may go unrecognized or be ignored, especially with the pressure placed on athletes to return to competition. The King-Devick (KD) test, an oculomotor test originally designed for reading evaluation, was recently validated as a concussion screening tool in collegiate athletes. A prospective study was performed using high school football players in an attempt to study the KD as a concussion screening tool in this younger population...
September 15, 2015: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/25953343/gender-and-age-predict-outcomes-of-cognitive-balance-and-vision-testing-in-a-multidisciplinary-concussion-center
#19
Peter A Benedict, Natali V Baner, G Kyle Harrold, Nicholas Moehringer, Lisena Hasanaj, Liliana P Serrano, Mara Sproul, Geraldine Pagnotta, Dennis A Cardone, Steven R Flanagan, Janet Rucker, Steven L Galetta, Laura J Balcer
OBJECTIVE: This study examined components of the Sports Concussion Assessment Tool, 3rd Edition (SCAT3) and a vision-based test of rapid number naming (King-Devick [K-D]) to evaluate sports and non-sports concussion patients in an outpatient, multidisciplinary concussion center. While the Symptom Evaluation, Standardized Assessment of Concussion (SAC), modified Balance Error Scoring System (BESS), and K-D are used typically for sideline assessment, their use in an outpatient clinical setting following concussion has not been widely investigated...
2015: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/25748294/the-king-devick-test-was-useful-in-management-of-concussion-in-amateur-rugby-union-and-rugby-league-in-new-zealand
#20
D King, C Gissane, P A Hume, M Flaws
AIM: To use the King-Devick (K-D) test in senior amateur rugby union and rugby league players over a domestic competition season to see if it could identify witnessed and unwitnessed episodes of concussion that occurred from participation in competition matches over three years. METHODS: A prospective observational cohort study was conducted on a club level senior amateur rugby union team (n=36 players in 2012 and 35 players in 2013) and a rugby league team (n=33 players in 2014) during competition seasons in New Zealand...
April 15, 2015: Journal of the Neurological Sciences
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