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Echemendia RJ, Burma JS, Bruce JM, Davis GA, Giza CC, Guskiewicz KM, Naidu D, Black AM, Broglio S, Kemp S, Patricios JS, Putukian M, Zemek R, Arango-Lasprilla JC, Bailey CM, Brett BL, Didehbani N, Gioia G, Herring SA, Howell D, Master CL, Valovich McLeod TC, Meehan WP, Premji Z, Salmon D, van Ierssel J, Bhathela N, Makdissi M, Walton SR, Kissick J, Pardini J, Schneider KJ. Acute evaluation of sport-related concussion and implications for the Sport Concussion Assessment Tool (SCAT6) for adults, adolescents and children: a systematic review. Br J Sports Med 2023; 57:722-735. [PMID: 37316213 DOI: 10.1136/bjsports-2022-106661] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/25/2023] [Indexed: 06/16/2023]
Abstract
OBJECTIVES To systematically review the scientific literature regarding the acute assessment of sport-related concussion (SRC) and provide recommendations for improving the Sport Concussion Assessment Tool (SCAT6). DATA SOURCES Systematic searches of seven databases from 2001 to 2022 using key words and controlled vocabulary relevant to concussion, sports, SCAT, and acute evaluation. ELIGIBILITY CRITERIA (1) Original research articles, cohort studies, case-control studies, and case series with a sample of >10; (2) ≥80% SRC; and (3) studies using a screening tool/technology to assess SRC acutely (<7 days), and/or studies containing psychometric/normative data for common tools used to assess SRC. DATA EXTRACTION Separate reviews were conducted involving six subdomains: Cognition, Balance/Postural Stability, Oculomotor/Cervical/Vestibular, Emerging Technologies, and Neurological Examination/Autonomic Dysfunction. Paediatric/Child studies were included in each subdomain. Risk of Bias and study quality were rated by coauthors using a modified SIGN (Scottish Intercollegiate Guidelines Network) tool. RESULTS Out of 12 192 articles screened, 612 were included (189 normative data and 423 SRC assessment studies). Of these, 183 focused on cognition, 126 balance/postural stability, 76 oculomotor/cervical/vestibular, 142 emerging technologies, 13 neurological examination/autonomic dysfunction, and 23 paediatric/child SCAT. The SCAT discriminates between concussed and non-concussed athletes within 72 hours of injury with diminishing utility up to 7 days post injury. Ceiling effects were apparent on the 5-word list learning and concentration subtests. More challenging tests, including the 10-word list, were recommended. Test-retest data revealed limitations in temporal stability. Studies primarily originated in North America with scant data on children. CONCLUSION Support exists for using the SCAT within the acute phase of injury. Maximal utility occurs within the first 72 hours and then diminishes up to 7 days after injury. The SCAT has limited utility as a return to play tool beyond 7 days. Empirical data are limited in pre-adolescents, women, sport type, geographical and culturally diverse populations and para athletes. PROSPERO REGISTRATION NUMBER CRD42020154787.
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Affiliation(s)
- Ruben J Echemendia
- Concussion Care Clinic, University Orthopedics, State College, Pennsylvania, USA
- University of Missouri Kansas City, Kansas City, Missouri, USA
| | - Joel S Burma
- Faculty of Kinesiology, University of Calgary, Calgary, Alberta, Canada
| | - Jared M Bruce
- Biomedical and Health Informatics, University of Missouri - Kansas City, Kansas City, Missouri, USA
| | - Gavin A Davis
- Murdoch Children's Research Institute, Parkville, Victoria, Australia
- Cabrini Health, Malvern, Victoria, Australia
| | - Christopher C Giza
- Neurosurgery, UCLA Steve Tisch BrainSPORT Program, Los Angeles, California, USA
- Pediatrics/Pediatric Neurology, Mattel Children's Hospital UCLA, Los Angeles, California, USA
| | - Kevin M Guskiewicz
- Matthew Gfeller Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Dhiren Naidu
- Medicine, University of Alberta, Edmonton, Alberta, Canada
| | | | - Steven Broglio
- Michigan Concussion Center, University of Michigan, Ann Arbor, Michigan, USA
| | - Simon Kemp
- Sports Medicine, Rugby Football Union, London, UK
| | - Jon S Patricios
- Wits Sport and Health (WiSH), School of Clinical Medicine, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg-Braamfontein, South Africa
| | | | - Roger Zemek
- Children's Hospital of Eastern Ontario Research Institute, Ottawa, Ontario, Canada
- Department of Pediatrics, University of Ottawa, Ottawa, Ontario, Canada
| | | | - Christopher M Bailey
- Neurology, University Hospitals Cleveland Medical Center, Cleveland, Ohio, USA
- Neurology, Case Western Reserve University School of Medicine, Cleveland, Ohio, USA
| | - Benjamin L Brett
- Neurosurgery/ Neurology, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | | | - Gerry Gioia
- Depts of Pediatrics and Psychiatry & Behavioral Sciences, Children's National Health System, Washington, District of Columbia, USA
| | - Stanley A Herring
- Department of Rehabilitation Medicine, Orthopaedics and Sports Medicine, and Neurological Surgery, University of Washington, Seattle, Washington, USA
| | - David Howell
- Orthopedics, Sports Medicine Center, Children's Hospital Colorado, Aurora, Colorado, USA
| | | | - Tamara C Valovich McLeod
- Department of Athletic Training and School of Osteopathic Medicine in Arizona, A.T. Still University, Mesa, Arizona, USA
| | - William P Meehan
- Sports Medicine, Children's Hospital Boston, Boston, Massachusetts, USA
- Emergency Medicine, Children's Hospital Boston, Boston, Massachusetts, USA
| | - Zahra Premji
- Libraries, University of Victoria, Victoria, British Columbia, Canada
| | | | | | - Neil Bhathela
- UCLA Health Steve Tisch BrainSPORT Program, Los Angeles, California, USA
| | - Michael Makdissi
- Florey Institute of Neuroscience and Mental Health - Austin Campus, Heidelberg, Victoria, Australia
- La Trobe Sport and Exercise Medicine Research Centre, Melbourne, Victoria, Australia
| | - Samuel R Walton
- Department of Physical Medicine and Rehabilitation, School of Medicine, Richmond, Virginia, USA
| | - James Kissick
- Dept of Family Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - Jamie Pardini
- Departments of Internal Medicine and Neurology, University of Arizona College of Medicine, Phoenix, Arizona, USA
| | - Kathryn J Schneider
- Sport Injury Prevention Research Centre, Faculty of Kinesiology, University of Calgary, Calgary, Alberta, Canada
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A COMPARISON OF THE PAPER AND COMPUTERIZED TABLET VERSION OF THE KING-DEVICK TEST IN COLLEGIATE ATHLETES AND THE INFLUENCE OF AGE ON PERFORMANCE. Int J Sports Phys Ther 2020; 15:688-697. [PMID: 33110687 DOI: 10.26603/ijspt20200688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Background Sport-related concussion is a public concern with between 1.6 and 3.8 million sport- and recreation-related injuries occurring annually. An estimated 65% to 90% of concussed athletes show oculomotor disruption such as difficulty with saccades, accommodation, smooth pursuit, and fixation. A rapid number-naming saccade test, the King-Devick (K-D) test, has shown promising results as part of a multifaceted concussion assessment tool. Purpose The purpose of the current study was to evaluate the two versions of the K-D in collegiate aged (18-24) athletes to determine the agreement between versions. A secondary purpose was to investigate the association of K-D scores with sport, sex, use of glasses or contacts, and age of the athlete. Study design Descriptive laboratory study. Methods Division 1 NCAA collegiate athletes across ten sports were recruited to participate in baseline concussion assessments at the beginning of their respective athletic season. Correlations and multivariable logistic regression analyses were used to investigate the association of K-D scores with sex and age. Results One-hundred and nine athletes (69 males, 40 females; mean age = 20.40 ± 1.38 years) were baseline tested. There was excellent agreement (ICC=0.93, 95% CI: 0.90, 0.95) between the paper and computer version. Preseason K-D scores were statistically different (r2=0.873, p<0.05) with athletes scoring a mean of 37.58 seconds on the paper version (95% CI, 36.21, 38.96) and athletes scoring a mean of 41.48 seconds for the computerized tablet version (95% CI, 40.17, 42.91). There were no significant differences in sex, sport, or use of glasses noted for both versions. Age differences were identified; eighteen-year-old athletes took statistically longer than their peers for both K-D versions. Pairwise comparisons showed statistically significant differences between 18-year olds up to the age of 21-year-olds (p<0.05) for the computer version and statistically significant differences between 18-year olds up to 22-year-olds (p<0.05) for the paper version. Conclusion This study supports the use of either version of the K-D test as a potential part of a multifaceted concussion assessment. The age of the athlete influences scores and therefore a K-D baseline should be repeated annually for collegiate athletes. Clinicians should not substitute K-D versions (computer vs. paper) in comparing baseline to a post-concussion K-D score as the scores are quite different. Level of evidence Level 3.
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Miller M, Zemon V, Nolan-Kenney R, Balcer LJ, Goff DC, Worthington M, Hasanaj L, Butler PD. Optical coherence tomography of the retina in schizophrenia: Inter-device agreement and relations with perceptual function. Schizophr Res 2020; 219:13-18. [PMID: 31937481 DOI: 10.1016/j.schres.2019.10.046] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Revised: 10/18/2019] [Accepted: 10/21/2019] [Indexed: 10/25/2022]
Abstract
BACKGROUND Optical coherence tomography (OCT) studies have demonstrated differences between people with schizophrenia and controls. Many questions remain including the agreement between scanners. The current study seeks to determine inter-device agreement of OCT data in schizophrenia compared to controls and to explore the relations between OCT and visual function measures. METHODS Participants in this pilot study were 12 individuals with schizophrenia spectrum disorders and 12 age- and sex-matched controls. Spectralis and Cirrus OCT machines were used to obtain retinal nerve fiber layer (RNFL) thickness and macular volume. Cirrus was used to obtain ganglion cell layer + inner plexiform layer (GCL + IPL) thickness. Visual function was assessed with low-contrast visual acuity and the King-Devick test of rapid number naming. RESULTS There was excellent relative agreement in OCT measurements between the two machines, but poor absolute agreement, for both patients and controls. On both machines, people with schizophrenia showed decreased macular volume but no difference in RNFL thickness compared to controls. No between-group difference in GCL + IPL thickness was found on Cirrus. Controls showed significant associations between King-Devick performance and RNFL thickness and macular volume, and between low-contrast visual acuity and GCL + IPL thickness. Patients did not show significant associations between OCT measurements and visual function. CONCLUSIONS Good relative agreement suggests that the offset between machines remains constant and should not affect comparisons between groups. Decreased macular volume in individuals with schizophrenia on both machines supports findings of prior studies and provides further evidence that similar results may be found irrespective of OCT device.
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Affiliation(s)
- Margaret Miller
- Department of Neurology, New York University School of Medicine, New York, NY, USA; Department of Psychiatry, New York University School of Medicine, New York, NY, USA; Ferkauf Graduate School of Psychology, Yeshiva University, Bronx, NY, USA
| | - Vance Zemon
- Ferkauf Graduate School of Psychology, Yeshiva University, Bronx, NY, USA
| | - Rachel Nolan-Kenney
- Department of Neurology, New York University School of Medicine, New York, NY, USA; Department of Population Health, New York University School of Medicine, New York, NY, USA
| | - Laura J Balcer
- Department of Neurology, New York University School of Medicine, New York, NY, USA; Department of Ophthalmology, New York University School of Medicine, New York, NY, USA; Department of Population Health, New York University School of Medicine, New York, NY, USA
| | - Donald C Goff
- Department of Psychiatry, New York University School of Medicine, New York, NY, USA; Nathan Kline Institute for Psychiatric Research, Orangeburg, NY, USA
| | - Michelle Worthington
- Department of Psychiatry, New York University School of Medicine, New York, NY, USA
| | - Lisena Hasanaj
- Department of Neurology, New York University School of Medicine, New York, NY, USA
| | - Pamela D Butler
- Department of Psychiatry, New York University School of Medicine, New York, NY, USA; Nathan Kline Institute for Psychiatric Research, Orangeburg, NY, USA.
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Heick JD, Bay C, Valovich McLeod TC. EVALUATION OF VERTICAL AND HORIZONTAL SACCADES USING THE DEVELOPMENTAL EYE MOVEMENT TEST COMPARED TO THE KING-DEVICK TEST. Int J Sports Phys Ther 2018; 13:808-818. [PMID: 30276013 PMCID: PMC6159500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023] Open
Abstract
BACKGROUND Oculomotor function is impaired when an individual has a concussion and as such, it is important to identify tests that are able to assess oculomotor impairment. The King-Devick (K-D) test assesses horizontal saccadic eye movement and attention. The Developmental Eye Movement (DEM) test is designed to identify oculomotor dysfunction in children. It measures both horizontal and vertical saccades. The K-D test shows promise as a concussion-screening tool and part of a multifactorial assessment. The DEM has not been tested as a concussion assessment tool, but the neuroanatomical control of horizontal and vertical saccades originates from different areas of the brain, so one might expect to see differences in performance on the K-D and DEM tests when administered to concussed patients. First, it is important to determine if performance on the DEM and K-D tests, particularly with respect to the measurement of vertical and horizontal saccades, is similar in a healthy population.Hypothesis/Purpose: The primary purpose was to evaluate the relationship between horizontal and vertical saccade tests over repeated trials in normal, healthy subjects. A secondary purpose of this study was to determine the number of trials needed to reach a performance plateau for both the DEM and K-D tests.Study Design: This study used a prospective cohort research design. METHODS Forty-two healthy non-concussed participants (22 males, 20 females; mean age, 24.2 ± 2.92 years) completed six repeated trials of both the DEM, and then six trials of the K-D test in a single testing session. Trials within each test were performed in random order and participants were offered short rest breaks as needed between test administrations. RESULTS Results indicated strong correlations, r=.67, or greater, between measurements of horizontal and vertical saccades. Performance plateaued on the K-D at trial three and on the DEM at trial two for both horizontal and vertical saccades. CONCLUSION It appears that the DEM and K-D tests measure similar constructs in healthy individuals and that no additional information is provided by assessment of vertical saccades. Additional studies are required to investigate the usefulness of the DEM in concussed individuals. LEVEL OF EVIDENCE 3: Laboratory study with repeated measures.
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Affiliation(s)
- John D. Heick
- Northern Arizona University, Program in Physical Therapy, Flagstaff, AZ, USA
| | - Curt Bay
- Department of Interdisciplinary Health Sciences, A.T. Still University, Mesa, AZ, USA
| | - Tamara C. Valovich McLeod
- Athletic Training Programs and School of Osteopathic Medicine in Arizona, A.T. Still University, Mesa, AZ, USA
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Debacker J, Ventura R, Galetta SL, Balcer LJ, Rucker JC. Neuro-ophthalmologic disorders following concussion. HANDBOOK OF CLINICAL NEUROLOGY 2018; 158:145-152. [PMID: 30482342 DOI: 10.1016/b978-0-444-63954-7.00015-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Visual symptoms, such as photophobia and blurred vision, are common in patients with concussion. Such symptoms may be accompanied by abnormalities of specific eye movements, such as saccades and convergence, or accommodation deficits. The high frequency of visual involvement in concussion is not surprising, since more than half of the brain's pathways are dedicated to vision and eye movement control. These areas include many that are most vulnerable to head trauma, including the frontal and temporal lobes. Vision and eye movement testing is important at the bedside and on the sidelines of athletic events, where brief performance measures that require eye movements, such as rapid number naming, are reliable and sensitive measures for concussion detection. Tests of vision and eye movements are also being explored clinically to identify and monitor patients with symptoms of both sport- and nonsport-related concussion. Evaluation of vision and eye movements can assist in making important decisions after concussion, including the prognosis for symptom recovery, and to direct further visual rehabilitation as necessary.
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Affiliation(s)
- Julie Debacker
- Department of Neurology, NYU School of Medicine, New York, NY, United States
| | - Rachel Ventura
- Department of Neurology, NYU School of Medicine, New York, NY, United States
| | - Steven L Galetta
- Department of Neurology, NYU School of Medicine, New York, NY, United States; Ophthalmology, NYU School of Medicine, New York, NY, United States
| | - Laura J Balcer
- Department of Neurology, NYU School of Medicine, New York, NY, United States; Ophthalmology, NYU School of Medicine, New York, NY, United States; Population Health, NYU School ofMedicine, New York, NY, United States
| | - Janet C Rucker
- Department of Neurology, NYU School of Medicine, New York, NY, United States; Ophthalmology, NYU School of Medicine, New York, NY, United States.
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