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https://www.readbyqxmd.com/read/28334382/concussion-like-symptom-reporting-in-non-concussed-collegiate-athletes
#1
Breton M Asken, Aliyah R Snyder, James R Clugston, Leslie S Gaynor, Molly J Sullan, Russell M Bauer
Objective: Non-concussed individuals may report a variety of concussion-like symptoms even in the absence of a diagnosed brain injury. Previous studies described concussion-like symptom reporting in adolescent athletes. This study provides complementary data on concussion-like symptoms in collegiate athletes. Methods: We analyzed baseline symptom scales from 738 collegiate athletes (452 men and 286 women) who completed either the Sport Concussion Assessment Tool, 3 Symptom Evaluation (S3SE; n = 377) or the Post-Concussion Scale (PCS; n = 361) and determined if subjects met criteria for diagnosis of International Classification of Diseases 10th Revision (ICD-10) postconcussional syndrome...
March 10, 2017: Archives of Clinical Neuropsychology: the Official Journal of the National Academy of Neuropsychologists
https://www.readbyqxmd.com/read/28326890/functional-and-molecular-correlates-following-single-and-repeated-rat-closed-head-concussion-indices-of-vulnerability-following-brain-injury
#2
Andrea Mountney, Angela Boutte, Casandra M Cartagena, William J Flerlage, David Johnson, Chanyang Rho, Xi-Chun M Lu, Angela M Yarnell, Sean R Marcsisin, Jason Sousa, Chau Vuong, Victor E Zottig, Lai Yee Leung, Ying Deng-Bryant, Janice Gilsdorf, Frank C Tortella, Deborah A Shear
Closed-head concussive injury is one of the most common causes of traumatic brain injury (TBI). Isolated concussions frequently produce acute neurological impairments; however, individuals typically recover spontaneously within a short time frame. In contrast, brain injuries resulting from multiple concussions can result in cumulative damage and elevated risk of developing chronic brain pathologies, including chronic traumatic encephalopathy (CTE). Increased attention has focused on identification of diagnostic markers that can prognostically serve as indices of brain health after injury, revealing the temporal profile of vulnerability to a second insult...
March 22, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28326857/depression-in-youth-recovering-from-concussion-correlates-and-predictors
#3
Kathy Stazyk, Carol DeMatteo, Sandra Moll, Cheryl Missiuna
OBJECTIVES: Although depression can be a serious consequence of concussion, little is known about the factors that predict depression and concussion recovery outcomes in children. The purpose of this study was to explore the risk and possible predictors of developing significant depressive symptoms in children recovering from concussion. METHODS: A prospective cohort study was conducted in a paediatric tertiary care clinic. Depression data were collected from 92 children using the Children's Depression Inventory-2 (CDI-2) screening tool...
March 22, 2017: Brain Injury: [BI]
https://www.readbyqxmd.com/read/28324787/interactive-ebooks-in-educating-patients-and-their-families-about-head-injury-regardless-of-age
#4
Ronald Sahyouni, Amin Mahmoodi, Amir Mahmoodi, Melissa Huang, Diem Kieu Tran, Jefferson W Chen
OBJECTIVES: Traumatic Brain Injury (TBI) is a common and debilitating injury that is particularly prevalent in patients over 60. Given the influence of head injury on dementia (and vice versa), and the increased likelihood of ground-level falls, elderly patients are vulnerable to TBI. Educational interventions can increase knowledge and influence preventative activity to decrease the likelihood of further TBI. We sought to determine the efficacy of interactive tablet-based educational interventions in elderly patients on self-reported knowledge...
March 8, 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/28320567/gender-differences-in-concussion-and-postinjury-cognitive-findings-in-an-older-and-younger-pediatric-population
#5
Sarah Tanveer, Nassim Zecavati, Elizabeth Bronson Delasobera, Temitayo Oyefunmike Oyegbile
BACKGROUND: Studies have documented gender differences associated with concussion. The purpose of this study was to determine if these gender differences are also noted within a pediatric population. METHODS: This prospective study analyzed 1971 patients who had completed preconcussion and postconcussion neuropsychological testing within the Washington, DC, area. RESULTS: Our results showed that children and adolescents with concussion exhibit gender differences with respect to risk factors, recovery, and symptomatology...
February 9, 2017: Pediatric Neurology
https://www.readbyqxmd.com/read/28319792/safety-regulation-in-professional-football-empirical-evidence-of-intended-and-unintended-consequences
#6
Andrew Hanson, Nicholas A Jolly, Jeremy Peterson
In response to increasing public awareness and negative long-term health effects of concussions, the National Football League implemented the "Crown-of-the-Helmet Rule" (CHR). The CHR imposes penalties on players who initiate contact using the top of the helmet. This paper examines the intended effect of this policy and its potential for unintended consequences. We find evidence supporting the intended effect of the policy- a reduction in weekly concussion reports among defensive players by as much as 32% (34% for all head and neck injuries), but also evidence of an increase in weekly lower extremity injury reports for offensive players by as much as 34%...
January 29, 2017: Journal of Health Economics
https://www.readbyqxmd.com/read/28314862/epidemiology-and-prognosis-of-mild-traumatic-brain-injury-in-returning-soldiers-a-cohort-study
#7
Karen Schwab, Heidi P Terrio, Lisa A Brenner, Renee M Pazdan, Henry P McMillan, Margaret MacDonald, Sidney R Hinds, Ann I Scher
OBJECTIVE: Mild traumatic brain injury (mTBI; concussion) is common in returning service members yet limited definitive evidence exists on its prognosis. METHODS: Almost 25,000 non-medically evacuated soldiers returning from Afghanistan or Iraq to 2 military bases between 2009 and 2014 were screened for mTBI. We invited a random sample to participate in the present study, oversampling those screening positive, resulting in 557 mTBI cases and 1,010 controls, of whom 366 cases and 599 controls completed 3-month follow-up evaluations...
March 17, 2017: Neurology
https://www.readbyqxmd.com/read/28314420/sport-injuries-of-the-ear-and-temporal-bone
#8
REVIEW
L Mariel Osetinsky, Grant S Hamilton, Matthew L Carlson
In cases of head trauma, the ear should be evaluated in all of its components. A good understanding of otologic and skull base anatomy enables a thorough trauma assessment of this complex anatomic region. Auricular laceration, abrasion, avulsion, hematoma, frostbite, otitis externa, exostosis, tympanic membrane perforation, ossicular discontinuity, perilymphatic fistula, labyrinthine concussion, temporal bone fracture, facial nerve paresis, and sensorineural hearing loss are a few of the more common otologic injuries seen in active patients...
April 2017: Clinics in Sports Medicine
https://www.readbyqxmd.com/read/28301824/using-a-dual-task-protocol-to-investigate-motor-and-cognitive-performance-in-healthy-children-and-youth
#9
Tracy L Fabri, Katherine E Wilson, Nicole Holland, Andrea Hickling, James Murphy, Philippe Fait, Nick Reed
OBJECTIVES: Mild traumatic brain injury (or concussion) is a prevalent yet understudied health concern in children and youth. This injury can cause dysfunction in both motor and cognitive domains; however, most literature focuses on single-task neuropsychological tests which only assess cognition. Although dual-task research on concussed children and youth is needed as many daily activities require both motor and cognitive domains, we must first investigate whether performing simultaneous motor and cognitive tasks of varied complexity impact these domains in healthy children and youth...
March 6, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28301451/traumatic-brain-injury-related-emergency-department-visits-hospitalizations-and-deaths-united-states-2007-and-2013
#10
Christopher A Taylor, Jeneita M Bell, Matthew J Breiding, Likang Xu
PROBLEM/CONDITION: Traumatic brain injury (TBI) has short- and long-term adverse clinical outcomes, including death and disability. TBI can be caused by a number of principal mechanisms, including motor-vehicle crashes, falls, and assaults. This report describes the estimated incidence of TBI-related emergency department (ED) visits, hospitalizations, and deaths during 2013 and makes comparisons to similar estimates from 2007. REPORTING PERIOD: 2007 and 2013. DESCRIPTION OF SYSTEM: State-based administrative health care data were used to calculate estimates of TBI-related ED visits and hospitalizations by principal mechanism of injury, age group, sex, and injury intent...
March 17, 2017: MMWR. Surveillance Summaries: Morbidity and Mortality Weekly Report. Surveillance Summaries
https://www.readbyqxmd.com/read/28301443/can-neck-strength-be-measured-using-a-single-maximal-contraction-in-a-simulated-contact-position
#11
Danielle M Salmon, Phil Handcock, S John Sullivan, Nancy J Rehrer, Brian Niven
Neck strengthening has been postulated to potentially reduce the incidence/severity of concussions and neck injuries in collision based sports. A quick and reliable method to assess neck strength would permit identification of those at risk and tracking of progress following injury. The purpose of this study was to determine if neck strength could be reliably assessed in a simulated contact posture using a single maximal contraction. During a single session 30 healthy male university students performed 3 maximal voluntary contractions of the neck musculature in each of the following directions: extension (Ext), flexion (Flx), left (LtFlx), and right lateral flexion (RtFlx)...
March 13, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28298170/concussion-induces-hippocampal-circuitry-disruption-in-swine
#12
John A Wolf, Brian N Johnson, Victoria E Johnson, Mary E Putt, Kevin D Browne, Constance J Mietus, Daniel P Brown, Kathryn L Wofford, Douglas H Smith, M Sean Grady, Akiva S Cohen, D Kacy Cullen
Hippocampal-dependent deficits in learning and memory formation are a prominent feature of traumatic brain injury (TBI), however the role of the hippocampus in cognitive dysfunction after concussion (mild TBI) is unknown. We therefore investigated functional and structural changes in the swine hippocampus following TBI using a model of head rotational acceleration that closely replicates the biomechanics and neuropathology of closed-head TBI in humans. We examined neurophysiological changes using a novel ex vivo hippocampal slice paradigm with extracellular stimulation and recording in the dentate gyrus and CA1 occurring at 7 days following non-impact inertial TBI in swine...
March 16, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28298054/long-term-effects-of-adolescent-sport-concussion-across-the-age-spectrum
#13
Douglas N Martini, James T Eckner, Sean K Meehan, Steven P Broglio
BACKGROUND: Research in sport concussion has increased greatly over the previous decade due to increased scientific interest as well as the media and political spotlight that has been cast on this injury. However, a dearth of literature is available regarding the long-term (>1 year after concussion) effects of adolescent concussion on cognitive and motor performance of high school athletes. PURPOSE: To evaluate the potential for long-term effects of concussion sustained during high school on cognitive and motor performance across the lifespan...
February 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28296510/multidisciplinary-outpatient-treatment-in-patients-with-mild-traumatic-brain-injury-a-randomised-controlled-intervention-study
#14
Eirik Vikane, Torgeir Hellstrøm, Cecilie Røe, Erik Bautz-Holter, Jörg Aßmus, Jan Sture Skouen
OBJECTIVE: To evaluate the efficacy of a multidisciplinary outpatient follow-up programme compared to follow-up by a general practitioner for patients being at-risk or sick-listed with persistent post-concussion symptoms two months after a mild traumatic brain injury. DESIGN: Randomised controlled trial. PATIENTS: One hundred fifty-one patients, 16-56 years. METHODS: Multidisciplinary outpatient rehabilitation with individual contacts and a psycho-educational group intervention at two outpatient rehabilitation clinics compared to follow-up by a general practitioner after the multidisciplinary examination...
March 15, 2017: Brain Injury: [BI]
https://www.readbyqxmd.com/read/28294629/sport-concussion-management-using-facebook-a-feasibility-study-of-an-innovative-adjunct-icon
#15
Osman Hassan Ahmed, Anthony G Schneiders, Paul R McCrory, S John Sullivan
CONTEXT:   Sport concussion is currently the focus of much international attention. Innovative methods to assist athletic trainers in facilitating management after this injury need to be investigated. OBJECTIVE:   To investigate the feasibility of using a Facebook concussion-management program termed iCon (interactive concussion management) to facilitate the safe return to play (RTP) of young persons after sport concussion. DESIGN:   Observational study...
March 15, 2017: Journal of Athletic Training
https://www.readbyqxmd.com/read/28294184/crystallization-and-hardening-of-poly-ethylene-co-vinyl-acetate-mouthguards-during-routine-use
#16
Ryoko Kuwahara, Ryotaro Tomita, Natsumi Ogawa, Kazunori Nakajima, Tomotaka Takeda, Hiroki Uehara, Takeshi Yamanobe
Mouthguards (MGs) made from poly(ethylene-co-vinyl acetate) (EVA) are widely used in contact sports to prevent injuries such as breaking teeth and lip lacerations and to reduce brain concussion. However, the changes in morphology and the molecular mobility of EVA, which can affect its physical properties during practical usage, have not been precisely examined. Therefore, we attempted to determine the main factors which lead to changes in MG performance after one season of practical use by high school rugby players...
March 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28293983/trajectories-and-risk-factors-for-posttraumatic-stress-symptoms-following-pediatric-concussion
#17
Katherine Truss, Celia Godfrey, Michael Takagi, Franz Babl, Silvia Bressan, Stephen J C Hearps, Cathriona Clarke, Kevin Dunne, Vicki Anderson
A substantial minority of children experience posttraumatic stress symptoms (PTSS) following injury. Research indicates variation in the trajectory of PTSS following pediatric injury, but investigation of PTSS following concussion has assumed homogeneity. This study aimed to identify differential trajectories of PTSS following pediatric concussion and to investigate risk-factors, including acute post-concussive symptoms (PCS), associated with these trajectories. 120 children aged 8-18 years reported PTSS for 3 months following concussion diagnosis using the Child PTSD Symptom Scale, with a score of 16 or above indicating probable PTSD diagnosis...
March 15, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28292694/asb-clinical-biomechanics-award-winner-2016-assessment-of-gaze-stability-within-24-48hours-post-concussion
#18
Nicholas G Murray, Nathan R D'Amico, Douglas Powell, Megan E Mormile, Katelyn E Grimes, Barry A Munkasy, Russell K Gore, Rebecca J Reed-Jones
BACKGROUND: Approximately 90% of athletes with concussion experience a certain degree of visual system dysfunction immediately post-concussion. Of these abnormalities, gaze stability deficits are denoted as among the most common. Little research quantitatively explores these variables post-concussion. As such, the purpose of this study was to investigate and compare gaze stability between a control group of healthy non-injured athletes and a group of athletes with concussions 24-48hours post-injury...
March 6, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/28291867/development-and-validation-of-a-brain-phantom-for-therapeutic-cooling-devices
#19
Ryan D M Packett, Philip Brown, Gautam S S Popli, F Scott Gayzik
Tissue cooling is a viable therapy for multiple conditions and injuries, and has been applied to the brain to treat epilepsy and concussions, leading to improved long-term outcomes. To facilitate the study of temperature reduction as a function of various cooling methods, a thermal brain phantom was developed and analyzed. The phantom is composed of a potassium-neutralized, superabsorbent co-polymer hydrogel. The phantom was tested in a series of cooling trials using a cooling block and 37 deg. water representing non-directional blood flow ranging up to 6 GPH, a physiologically representative range based on the prototype volume...
March 14, 2017: Journal of Biomechanical Engineering
https://www.readbyqxmd.com/read/28291462/frequency-responses-to-visual-tracking-stimuli-may-be-affected-by-concussion
#20
Jun Maruta, Eugene Jaw, Peter Modera, Umesh Rajashekar, Lisa A Spielman, Jamshid Ghajar
Human visual tracking performance is known to be reduced with an increase of the target's speed and oscillation frequency, but changes in brain states following a concussion may alter these frequency responses. The goal of this study was to characterize and compare frequency-dependent smooth pursuit velocity degradation in normal subjects and patients who had chronic postconcussion symptoms, and also examine cases of acutely concussed patients. Eye movements were recorded while subjects tracked a target that moved along a circular trajectory of 10° radius at 0...
March 2017: Military Medicine
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