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concussion assessment

Kavita Singh, Richa Trivedi, Seenu Haridas, Kailash Manda, Subash Khushu
Mild traumatic brain injury (mTBI) is the most common form of TBI (70-90%) with consequences of anxiety-like behavioral alterations in approximately 23% of mTBI cases. This study aimed to assess whether mTBI-induced anxiety-like behavior is a consequence of neurometabolic alterations. mTBI was induced using a weight drop model to simulate mild human brain injury in rodents. Based on injury induction and dosage of anesthesia, four animal groups were included in this study: (i) injury with anesthesia (IA); (ii) sham1 (injury only, IO); (iii) sham2 (only anesthesia, OA); and (iv) control rats...
October 25, 2016: NMR in Biomedicine
Zuzana Novak, Mary Aglipay, Nick Barrowman, Keith O Yeates, Miriam H Beauchamp, Jocelyn Gravel, Stephen B Freedman, Isabelle Gagnon, Gerard Gioia, Kathy Boutis, Emma Burns, Andrée-Anne Ledoux, Martin H Osmond, Roger L Zemek
Importance: Persistent postconcussion symptoms (PPCS) pose long-term challenges and can negatively affect patients' health-related quality of life (HRQoL). To date, no large comprehensive study has addressed the association between PPCS and HRQoL. Objectives: To determine the association between HRQoL and PPCS at 4 weeks after concussion and assess the degree of impairment of HRQoL in the subsequent 12 weeks. Design, Setting, and Participants: In a prospective, multicenter cohort study (Predicting Persistent Postconcussive Problems in Pediatrics [5P]) from August 14, 2013, to September 30, 2014, children aged 5 to 18 years who presented to the emergency department within 48 hours after head injury and were considered to have an acute concussion were enrolled across 9 pediatric emergency departments within the Pediatric Emergency Research Canada Network...
October 24, 2016: JAMA Pediatrics
Michael J Ellis, Lesley J Ritchie, Patrick J McDonald, Dean Cordingley, Karen Reimer, Satnam Nijjar, Mark Koltek, Shahid Hosain, Janine Johnston, Behzad Mansouri, Scott Sawyer, Norm Silver, Richard Girardin, Shannon Larkins, Sara Vis, Erin Selci, Michael Davidson, Scott Gregoire, Angela Sam, Brian Black, Martin Bunge, Marco Essig, Peter MacDonald, Jeff Leiter, Kelly Russell
OBJECTIVES: To summarize the clinical characteristics and outcomes of pediatric sports-related concussion (SRC) patients who were evaluated and managed at a multidisciplinary pediatric concussion program and examine the healthcare resources and personnel required to meet the needs of this patient population. METHODS: We conducted a retrospective review of all pediatric SRC patients referred to the Pan Am Concussion Program from September 1st, 2013 to May 25th, 2015...
October 24, 2016: Canadian Journal of Neurological Sciences. le Journal Canadien des Sciences Neurologiques
Zachary C Merz, Ryan Van Patten, John Lace
OBJECTIVE: The current study aimed to assess current broad traumatic brain injury (TBI)-related knowledge in the general public, as well as understanding regarding specific TBI-related conditions including post-concussive syndrome (PCS) and chronic traumatic encephalopathy (CTE). METHODS: Data were collected from 307 domestic and 73 international individuals via online researcher-developed survey instrumentation utilizing the Amazon Mechanical Turk marketplace, a recently developed website that allows for a streamlined process of survey-based participant recruitment and data collection...
October 20, 2016: Archives of Clinical Neuropsychology: the Official Journal of the National Academy of Neuropsychologists
Naseem Jamnia, Janice H Urban, Grace Beth Stuzmann, Sarah Chiren, Emily Reisenbigler, Robert Marr, Daniel A Peterson, Dorothy A Kozlowski
Repeat concussions (RC) can result in significant long-term neurological consequences and increased risk for neurodegenerative disease compared to single concussion (SC). Mechanisms underlying this difference are poorly understood and best elucidated using an animal model. To the best of our knowledge, there is no closed-head model in the adult rat using a commercially available device. We developed a novel and clinically relevant closed-head injury (CHI) model of both single and multiple concussions in the adult rat using a controlled cortical impact (CCI) device...
October 20, 2016: Journal of Neurotrauma
Svetlana A Dambinova, Joseph C Maroon, Alicia M Sufrinko, John David Mullins, Eugenia V Alexandrova, Alexander A Potapov
Concussion is a complex, heterogeneous process affecting the brain. Accurate assessment and diagnosis and appropriate management of concussion are essential to ensure that athletes do not prematurely return to play or others to work or active military duty, risking re-injury. To date, clinical diagnosis relies primarily on evaluating subjects for functional impairment using instruments that include neurocognitive testing, subjective symptom report, and neurobehavioral assessments, such as balance and vestibular-ocular reflex testing...
2016: Frontiers in Neurology
Breton M Asken, Aliyah R Snyder, M Seth Smith, Jason L Zaremski, Russell M Bauer
OBJECTIVE: The primary goals of this study were (1) to report rates of concussion-like symptoms in healthy adolescent student athletes assessed using the Sport Concussion Assessment Tool, 3rd edition (SCAT3) at baseline, (2) to examine rates of psychiatric diagnoses in this population, and (3) to evaluate effects of baseline symptoms on SCAT3 cognitive and balance performance. METHODS: 349 adolescent student athletes (245 male) were administered the SCAT3 during pre-participation physical examinations...
October 19, 2016: Clinical Neuropsychologist
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
James M Bjork, Thomas K Burroughs, Laura M Franke, Treven C Pickett, Sade E Johns, F Gerard Moeller, William C Walker
In military populations, traumatic brain injury (TBI) also holds potential to increase impulsivity and impair mood regulation due to blast injury effects on ventral frontal cortex - to put military personnel at risk for suicide or substance abuse. We assessed a linkage between depression and impaired behavioral inhibition in 117 blast-exposed service members (SM) and veterans with post-concussion syndrome (PCS), where PCS was defined using a Rivermead Postconcussive Symptom Questionnaire (RPQ) modified to clarify whether each symptom worsened compared to pre-blast...
October 7, 2016: Psychiatry Research
Laurens Holmes, Joshua Tworig, Joseph Casini, Isabel Morgan, Kathleen O'Brien, Patricia Oceanic, Kirk Dabney
BACKGROUND: Sports-related concussion remains a public health challenge due to its morbidity and mortality. One of the consequences of concussion is cognitive impairment (CI) and cognitive-related symptoms (CRS) which determine, to some extent, physical and behavioral functioning of children who sustain concussion. Despite the high prevalence of CI and CRS associated with concussion, the risk factors are not fully understood. We aimed to characterize CRS and to examine its relationship with race, ethnicity, age, insurance, and sex in a pediatric population...
December 2016: Sports Medicine—Open
Jennifer C Reneker, Vinay Cheruvu, Jingzhen Yang, Chad E Cook, Mark A James, M Clay Moughiman, Joseph A Congeni
BACKGROUND: Dizziness is often reported after a sports-related concussion. Forces experienced at the time of the concussion can cause an injury to multiple anatomical areas, including the central nervous system, the vestibular system, and the cervical spine, each of which is sufficient to cause dizziness. Medical professionals routinely use the subjective history to develop hypotheses about what may be causing a patient's dizziness. No previous studies have attempted to differentiate the source of the dizziness through precise patient descriptors or the triggers of dizziness...
December 2015: Injury Epidemiology
Joaquín Valle Alonso, Francisco Javier Fonseca Del Pozo, Manuel Vaquero Álvarez, Elisa Lopera Lopera, Marisol Garcia Segura, Ricardo García Arévalo
BACKGROUND AND OBJECTIVE: To compare two scales for assessment of patients with mild head injury. The Canadian CT Head Rule (CCHR) and New Orleans Criteria (NOC) according to their diagnostic accuracy in patients attending an emergency department, and to determine the most important predictive values. METHOD: Cross-sectional study in a first-level Hospital in the period of January 2011 to January 2013. Patients with mild head injury criteria were included. All the patients underwent a computed tomography (CT) of the head as part of internal protocol and the CCHR and NOC criteria were recorded for each patient...
October 10, 2016: Medicina Clínica
Jessica Lynn Temple, Margaret A Struchen, Monique R Pappadis
OBJECTIVE: This study investigates the contribution of pre-injury family functioning and resources on self-reported post-concussive symptoms and functional outcomes in persons with mild TBI (mTBI). DESIGN: Participants with uncomplicated or complicated mTBIs were recruited from consecutive admissions to the emergency department of a level 1 trauma centre. Patients completed baseline assessments within 2 weeks of injury and an outcomes assessment at 3 months post-injury...
October 14, 2016: Brain Injury: [BI]
A J Gardner, R M N Kohler, C R Levi, G L Iverson
A new concussion interchange rule (CIR) was introduced in 2014 for the National Rugby League and National Youth Competition (NYC). The CIR allows a player suspected of having sustained a concussion to be removed from play and assessed without an interchange being tallied against the player's team. Participants included all NYC players who used the CIR during the 2014 season. 2 raters completed video analysis of 131 (of a total of 156 reported) uses of the CIR, describing injury characteristics, situational factors, and concussion signs...
October 13, 2016: International Journal of Sports Medicine
Ryan M Gardner, Aaron Yengo-Kahn, Christopher M Bonfield, Gary S Solomon
OBJECTIVES: Baseline and post-concussion neurocognitive testing is useful in managing concussed athletes. Attention deficit hyperactivity disorder (ADHD) and stimulant medications are recognized as potential modifiers of performance on neurocognitive testing by the Concussion in Sport Group. Our goal was to assess whether individuals with ADHD perform differently on post-concussion testing and if this difference is related to the use of stimulants. METHODS: Retrospective case-control study in which 4373 athletes underwent baseline and post-concussion testing using the ImPACT battery...
October 13, 2016: Physician and Sportsmedicine
Thor S Stead, Vaibhav Rastogi, Vishnumurthy S Hedna, Latha Ganti
OBJECTIVES: This study sought to: 1) estimate the penetrance (in terms of youth coaches being aware of them) of the CDC "Heads Up!" guidelines, 2) determine whether these guidelines changed the coaches' practice, and 3) understand whether these guidelines resulted in a perceived decrease in the number of concussions. METHODS: This was a cross-sectional survey of pediatric sports coaches in the United States designed to assess the impact of the CDC "Heads Up!" GUIDELINES: "Heads Up!" Concussion in Youth Sports is a free, online course available to coaches, parents, and others helping to keep athletes safe from concussions...
August 29, 2016: Curēus
C Elaine Little, Carolyn Emery, Stephen H Scott, Willem Meeuwisse, Luz Palacios-Derflingher, Sean P Dukelow
BACKGROUND: KINARM end point robotic testing on a range of tasks evaluating sensory, motor and cognitive function in children/adolescents with no neurologic impairment has been shown to be reliable. The objective of this study was to determine whether differences in baseline performance on multiple robotic tasks could be identified between pediatric/adolescent ice hockey players (age range 10-14) with and without a history of concussion. METHODS: Three hundred and eighty-five pediatric/adolescent ice hockey players (ages 10-14) completed robotic testing (94 with and 292 without a history of concussion)...
October 12, 2016: Journal of Neuroengineering and Rehabilitation
David R Howell, Jessie R Oldham, Melissa DiFabio, Srikant Vallabhajosula, Eric E Hall, Caroline J Ketcham, William P Meehan, Thomas A Buckley
Gait impairments have been documented following sport-related concussion. Whether pre-existing gait pattern differences exist among athletes who participate in different sport classifications, however, remains unclear. Dual-task gait examinations probe the simultaneous performance of everyday tasks (i.e. walking and thinking), and can quantify gait performance using inertial sensors. The purpose of this study was to compare the single-task and dual-task gait performance of collision/contact and non-contact athletes...
October 5, 2016: Journal of Applied Biomechanics
Jonathan Shurlock, Samuel Kelly
No abstract text is available yet for this article.
October 3, 2016: British Journal of Sports Medicine
Wesley R Cole, Jacques P Arrieux, Elizabeth M Dennison, Brian J Ivins
Computerized neurocognitive assessment tools (NCATs) have become a common way to assess postconcussion symptoms. As there is increasing research directly comparing multiple NCATs to each other, it is important to consider the impact that order of test administration may have on the integrity of the results. This study investigates the impact of administration order in a study of four different NCATs; Automated Neuropsychological Assessment Metrics (ANAM4), CNS Vital Signs (CNS-VS), CogState, and Immediate Post-Concussion Assessment and Cognitive Test (ImPACT)...
October 3, 2016: Journal of Clinical and Experimental Neuropsychology
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