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Hearing loss traumatic brain injury

Stephanie J Karch, José E Capó-Aponte, D Scott McIlwain, Michael Lo, Sridhar Krishnamurti, Roger N Staton, Kendra Jorgensen-Wagers
The objective of this study was to analyze differences in incidence and epidemiologic risk factors for significant threshold shift (STS) and tinnitus in deployed military personnel diagnosed with mild traumatic brain injury (mTBI) due to either a blast exposure or nonblast head injury. A retrospective longitudinal cohort study of electronic health records of 500 military personnel (456 met inclusion criteria) diagnosed with deployment-related mTBI was completed. Chi-square tests and STS incidence rates were calculated to assess differences between blast-exposed and nonblast groups; relative risks and adjusted odds ratios of developing STS or tinnitus were calculated for risk factors...
October 2016: U.S. Army Medical Department Journal
Olivier Maillot, Arnaud Attyé, Eric Boyer, Olivier Heck, Adrian Kastler, Sylvie Grand, Sébastien Schmerber, Alexandre Krainik
UNLABELLED: Hearing loss is a common functional disorder after trauma, and radiologists should be aware of the ossicular, labyrinthine or brain lesions that may be responsible. After a trauma, use of a systematic approach to explore the main functional components of auditory pathways is essential. Conductive hearing loss is caused by the disruption of the conductive chain, which may be due to ossicular luxation or fracture. This pictorial review firstly describes the normal 2-D and 3-D anatomy of the ossicular chain, including the incudo-malleolar and incudo-stapedial joints...
June 2016: Insights Into Imaging
A Robles Bayón, M G Tirapu de Sagrario, F Gude Sampedro
INTRODUCTION: Different types and localisations of neurological lesions can produce tinnitus and verbal or musical hallucinations (VMH). METHOD: These symptoms were screened for in 1,000 outpatients at a cognitive neurology clinic, and epidemiological and neuroimaging data were recorded. RESULTS: Tinnitus was present in 6.9% of the total and VMH in 0.9%. The paracusia group was predominantly female but the difference was not statistically significant...
March 8, 2016: Neurología: Publicación Oficial de la Sociedad Española de Neurología
Vishakha Waman Rawool
Work-related exposure to noise and other ototoxins can cause damage to the cochlea, synapses between the inner hair cells, the auditory nerve fibers, and higher auditory pathways, leading to difficulties in recognizing speech. Procedures designed to determine speech recognition scores (SRS) in an objective manner can be helpful in disability compensation cases where the worker claims to have poor speech perception due to exposure to noise or ototoxins. Such measures can also be helpful in determining SRS in individuals who cannot provide reliable responses to speech stimuli, including patients with Alzheimer's disease, traumatic brain injuries, and infants with and without hearing loss...
2016: International Journal of Audiology
Anton M Kolomeyer, Shyam Kodati
PURPOSE: To report a case of lamotrigine-induced tubulointerstitial nephritis and uveitis (TINU)-atypical Cogan syndrome. METHODS: Case report. RESULTS: A 16-year-old boy with traumatic brain injury and seizures presented to the emergency department with facial swelling, rash, and back pain several days after increasing lamotrigine dose secondary to a breakthrough seizure. Creatinine, urine β2 microglobulin, and eosinophils were elevated...
January 2016: European Journal of Ophthalmology
Kate Tapson, Wanda Sierotowicz, Di Marks-Maran, Trish Morris Thompson
This article explores the literature related to acquired brain injury (ABI) and is followed by a case study of one patient with ABI, which reflects how the evidence, when implemented by a team of health professionals, can have a positive impact on recovery. Gregor is a middle-aged Polish man who suffered traumatic ABI when knocked down by a car. He spent a number of years in a specialist neurosurgical unit, then a rehabilitation unit, and for the past several years has been cared for in a care home. For most of this time he was in a coma...
March 11, 2015: British Journal of Nursing: BJN
Srdjan M Vlajkovic, Hao Chang, Song Yee Paek, Howard H-T Chi, Sreevalsan Sreebhavan, Ravindra S Telang, Malcolm Tingle, Gary D Housley, Peter R Thorne
UNLABELLED: We have previously shown that adenosine amine congener (ADAC), a selective A1 adenosine receptor agonist, can ameliorate noise- and cisplatin-induced cochlear injury. Here we demonstrate the dose-dependent rescue effects of ADAC on noise-induced cochlear injury in a rat model and establish the time window for treatment. METHODS: ADAC (25-300 μg/kg) was administered intraperitoneally to Wistar rats (8-10 weeks old) at intervals (6-72 hours) after exposure to traumatic noise (8-16 kHz, 110 dB sound pressure level, 2 hours)...
2014: BioMed Research International
G Mahmood, Z Mei, H Hojjat, E Pace, S Kallakuri, J S Zhang
Blast-induced tinnitus, along with associated auditory impairment and traumatic brain injury, is a primary concern facing military service members. To search for treatment, we investigated the therapeutic effects of sildenafil, a phosphodiesterase-5 inhibitor, given its vasodilatory effects and evidence suggesting its beneficial effects on noise-induced hearing loss. Rats were subjected to three consecutive blast exposures at 22 psi and were monitored for tinnitus using a gap-detection acoustic startle reflex paradigm...
June 6, 2014: Neuroscience
Jacob N Norris, Richard Sams, Peter Lundblad, Earl Frantz, Erica Harris
PRIMARY OBJECTIVE: The objective was to compare symptoms in service members diagnosed with a blast-related mTBI (mild traumatic brain injury) with a loss of consciousness (LOC) to those without LOC. RESEARCH DESIGN: Clinicians saw US military personnel within 72 hours of sustaining a blast-related mTBI and at a follow-up visit 48-72 hours later (n = 210). METHODS AND PROCEDURES: Demographics, post-concussive symptoms, diagnosis of acute stress reaction (ASR) and simple reaction time data from the Automated Neuropsychological Assessment Metric (ANAM) were collected...
2014: Brain Injury: [BI]
J David Cassidy, Eleanor Boyle, Linda J Carroll
OBJECTIVE: To determine the incidence, course, and prognosis of adult mild traumatic brain injury (MTBI) caused by motor vehicle collisions. DESIGN: Prospective, population-based, inception cohort study. SETTING: The province of Saskatchewan, Canada, with a population of about 1,000,000 inhabitants. PARTICIPANTS: All adults (N=1716) incurring an MTBI in a motor vehicle collision between November 1997 and December 1999 in Saskatchewan...
March 2014: Archives of Physical Medicine and Rehabilitation
Christopher M Johnson, Colleen F Perez, Michael E Hoffer
OBJECTIVE: Identify a potential difference in the spectrum of otovestibular and cognitive symptoms in blast-exposed patients comparing individuals with or without significant extremity injuries. STUDY DESIGN: Case series with chart review. SETTING: A military tertiary care medical center. SUBJECTS AND METHODS: All new patient referrals for otovestibular evaluation after a blast injury or exposure were identified in the electronic medical record...
March 2014: Otolaryngology—Head and Neck Surgery
Gregory R Dion, Courtney L Miller, Peter D O'Connor, N Scott Howard
OBJECTIVES/HYPOTHESIS: To determine the prevalence of otologic complaints in subjects with dysphonia and traumatic brain injury (TBI) in a sample population of the US Army. STUDY DESIGN: Cross-sectional study. METHODS: A total of 292 subjects were identified with a new diagnosis of voice disorder during a 3.5-year period at three large military medical centers. Of them, 70 subjects were also identified with TBI and had no history of dysphonia before this time period...
January 2014: Journal of Voice: Official Journal of the Voice Foundation
I Meunier, G Lenaers, C Hamel, S Defoort-Dhellemmes
Inherited optic atrophy must be considered when working up any optic nerve involvement and any systemic disease with signs of optic atrophy, even with a negative family history. There are two classical forms: dominant optic atrophy, characterized by insidious, bilateral, slowly progressive visual loss and temporal disc pallor, and Leber's optic atrophy, characterized by acute loss of central vision followed by the same event in the fellow eye within a few weeks to months, with disc hyperemia in the acute phase...
December 2013: Journal Français D'ophtalmologie
J S Thakur, Vidya Shekar, Manika Saluja, N K Mohindroo
Late presentation of head trauma is rare. A young boy presented with a traumatic facial paralysis after head trauma. A CT scan of the head showed temporal bone fracture without intracranial insult. Facial nerve decompression was performed and paralysis started improving. However, he presented with vertigo and sensorineural hearing loss after 2 months. Clinical examination also showed cerebellar sign. We suspected iatrogenic injury to the cochlea; however, brain MRI showed haemorrhage in the area of anterior inferior cerebellar artery...
2013: BMJ Case Reports
Srdjan M Vlajkovic, Shelly Ching-Yu Lin, Ann Chi Yan Wong, Brad Wackrow, Peter R Thorne
UNLABELLED: NADPH oxidases are enzymes that transport electrons across the plasma membrane and generate superoxide radical from molecular oxygen. The current study investigated the expression and distribution of NOX/DUOX members of the NADPH oxidase family (NOX1-5 and DUOX1-2) in the rat cochlea and their regulation in response to noise. Wistar rats (8-10 weeks) were exposed for 24 h to band noise (8-12 kHz) at moderate (100 dB) or traumatic (110 dB) sound pressure levels (SPL). Animals exposed to ambient noise (45-55 dB SPL) served as controls...
October 2013: Hearing Research
R Chiaramonte, M Bonfiglio, A D'Amore, A Viglianesi, T Cavallaro, I Chiaramonte
Blunt head trauma without any temporal bone fracture or longitudinal temporal bone fracture, with an associated fracture of the labyrinth may cause labyrinthine injury with sensor neural hearing loss and vertigo because of a concussive injury to the membranous labyrinth. Sudden sensory neural hearing loss is relatively frequent. In most cases, the etiology is not discovered. One of the possible causes for sudden deafness is inner labyrinth bleeding or concussion, which were difficult to diagnose before the advent of magnetic resonance imaging...
February 2013: Neuroradiology Journal
Michael E Hoffer, Carey Balaban, Martin D Slade, Jack W Tsao, Barry Hoffer
BACKGROUND: Mild traumatic brain injury (mTBI) secondary to blast exposure is the most common battlefield injury in Southwest Asia. There has been little prospective work in the combat setting to test the efficacy of new countermeasures. The goal of this study was to compare the efficacy of N-acetyl cysteine (NAC) versus placebo on the symptoms associated with blast exposure mTBI in a combat setting. METHODS: This study was a randomized double blind, placebo-controlled study that was conducted on active duty service members at a forward deployed field hospital in Iraq...
2013: PloS One
Michael Oleksiak, Bridget M Smith, Justin R St Andre, Carly M Caughlan, Monica Steiner
We examined the prevalence, severity, etiology, and treatment of audiology problems among Operation Iraqi Freedom/Operation Enduring Freedom (OIF/OEF) Veterans with mild traumatic brain injury (TBI). A retrospective chart review was performed of 250 Veterans with mild TBI. Results of a comprehensive second-level mild TBI evaluation and subsequent visits to audiology were evaluated. We found the vast majority (87%) of Veterans reported some level of hearing disturbance and those involved in blast injuries reported a higher incidence of hearing disturbance than those with other injury etiologies...
2012: Journal of Rehabilitation Research and Development
Joseph P Pillion
Deficits in central auditory processing may occur in a variety of clinical conditions including traumatic brain injury, neurodegenerative disease, auditory neuropathy/dyssynchrony syndrome, neurological disorders associated with aging, and aphasia. Deficits in central auditory processing of a more subtle nature have also been studied extensively in neurodevelopmental disorders in children with learning disabilities, ADD, and developmental language disorders. Illustrative cases are reviewed demonstrating the use of an audiological test battery in patients with auditory neuropathy/dyssynchrony syndrome, bilateral lesions to the inferior colliculi, and bilateral lesions to the temporal lobes...
2012: Case Reports in Medicine
Timothy F Mott, Michael L McConnon, Brian P Rieger
Although a universally accepted definition is lacking, mild traumatic brain injury and concussion are classified by transient loss of consciousness, amnesia, altered mental status, a Glasgow Coma Score of 13 to 15, and focal neurologic deficits following an acute closed head injury. Most patients recover quickly, with a predictable clinical course of recovery within the first one to two weeks following traumatic brain injury. Persistent physical, cognitive, or behavioral postconcussive symptoms may be noted in 5 to 20 percent of persons who have mild traumatic brain injury...
December 1, 2012: American Family Physician
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