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Hearing Preservation

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https://www.readbyqxmd.com/read/28095914/vascular-mapping-of-the-retroauricular-skin-proposal-for-a-posterior-superior-surgical-incision-for-transcutaneous-bone-conduction-hearing-implants
#1
Adam Perenyi, Zsofia Bere, Janos Jarabin, Balazs Sztano, Edit Kukla, Ziad Bikhazi, Laszlo Tiszlavicz, Ferenc Toth, Jozsef Geza Kiss, Laszlo Rovo
BACKGROUND: Passive transcutaneous osseointegrated hearing implant systems have become increasingly popular more recently. The area over the implant is vulnerable due to vibration and pressure from the externally worn sound processor. Good perfusion and neural integrity has the potential to reduce complications. The authors' objective was to determine the ideal surgical exposure to maintain perfusion and neural integrity and decrease surgical time as a result of reduced bleeding. METHODS: The vascular anatomy of the temporal-parietal soft tissue was examined in a total of 50 subjects...
January 17, 2017: Journal of Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/28092738/hearing-children-s-voices-including-children-s-perspectives-on-their-experiences-of-domestic-violence-in-welfare-reports-prepared-for-the-english-courts-in-private-family-law-proceedings
#2
Gillian S Macdonald
This research examined Children and Family Court Advisory and Support Service (Cafcass) reports prepared for private family court proceedings in domestic violence cases in England. The research found that in cases where children's accounts identified them as victims of violence, these disclosures regularly disappeared from report recommendations. Particular discourses regarding 'child welfare' and 'contact' were identified, which routinely impacted on the ways in which children's voices were taken into account...
January 13, 2017: Child Abuse & Neglect
https://www.readbyqxmd.com/read/28079408/an-ecological-approach-to-hearing-health-promotion-in-workplaces
#3
Ravi Reddy, David Welch, Shanthi Ameratunga, Peter Thorne
OBJECTIVE: To develop and assess use, acceptability and feasibility of an ecological hearing conservation programme for workplaces. DESIGN: A school-based public health hearing preservation education programme (Dangerous Decibels®) was adapted for workplaces using the Multi-level Approach to Community Health (MATCH) Model. The programme was delivered in small manufacturing companies and evaluated using a questionnaire before the training and at one week and two-months after training...
January 12, 2017: International Journal of Audiology
https://www.readbyqxmd.com/read/28072654/adverse-events-following-vestibular-schwannoma-surgery-a-comparison-of-surgical-approach
#4
Anthony M Tolisano, Philip D Littlefield
OBJECTIVE: Compare complications of vestibular schwannoma (VS) resection by surgical approach. STUDY DESIGN: Retrospective cohort. SETTING: The 2008 to 2013 American College of Surgeons-National Surgical Quality Improvement Program. PATIENTS: Adult patients with VS resection by an otolaryngologist. INTERVENTIONS: VS resection via transtemporal (TT), retrosigmoid (RS), or middle cranial fossa (MCF) approaches...
January 9, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28071070/surgery-for-cholesteatomatous-labyrinthine-fistula
#5
John Lim, Anupriya Gangal, Michael Brian Gluth
OBJECTIVE: There is uncertainty regarding the ideal surgical management of cholesteatomatous labyrinthine fistulae. The objective was to review the published evidence to determine whether a difference exists in hearing outcome for cholesteatoma matrix removal or matrix exteriorization. DATA SOURCES: Systematic MEDLINE and Web of Science searches identified publications describing hearing results after cholesteatoma matrix removal or matrix exteriorization. REVIEW METHODS: Three reviewers appraised the studies for quality, level of evidence, and extracted data...
January 1, 2017: Annals of Otology, Rhinology, and Laryngology
https://www.readbyqxmd.com/read/28069964/task-specific-reorganization-of-the-auditory-cortex-in-deaf-humans
#6
Łukasz Bola, Maria Zimmermann, Piotr Mostowski, Katarzyna Jednoróg, Artur Marchewka, Paweł Rutkowski, Marcin Szwed
The principles that guide large-scale cortical reorganization remain unclear. In the blind, several visual regions preserve their task specificity; ventral visual areas, for example, become engaged in auditory and tactile object-recognition tasks. It remains open whether task-specific reorganization is unique to the visual cortex or, alternatively, whether this kind of plasticity is a general principle applying to other cortical areas. Auditory areas can become recruited for visual and tactile input in the deaf...
January 9, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28069466/voice-disorders-in-older-adults-living-in-nursing-homes-prevalence-and-associated-factors
#7
Leandro Pernambuco, Albert Espelt, Amanda C B Góis, Kenio Costa de Lima
OBJECTIVES: To estimate the prevalence and the associated factors with voice disorders (VDs) in older adults living in nursing homes. STUDY DESIGN: Cross-sectional. METHODS: A sample of 117 Brazilian individuals of both sexes and preserved cognitive function, aged >59 years, living in 10 nursing homes, was studied. VDs were screened using the validated tool "Rastreamento de Alterações Vocais em Idosos" (RAVI-Screening for Voice Disorders in Older Adults)...
January 6, 2017: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/28050647/deleting-the-hcn1-subunit-of-hyperpolarization-activated-ion-channels-in-mice-impairs-acoustic-startle-reflexes-gap-detection-and-spatial-localization
#8
James R Ison, Paul D Allen, Donata Oertel
It has been proposed that the high temporal and spatial acuities of human listeners and animals tested in the hearing laboratory depend in part on the short time constants of auditory neurons that are able to preserve or sharpen the information conveyed in the timing of firing of auditory nerve fibers. We tested this hypothesis in a series of in vivo experiments, based on previous in vitro experiments showing that neuronal time constants are raised in brainstem slices when HCN1 channels are blocked or in slices obtained from Hcn1 (-/-) null mutant mice...
January 3, 2017: Journal of the Association for Research in Otolaryngology: JARO
https://www.readbyqxmd.com/read/28045920/alterations-in-evoked-otoacoustic-emissions-by-the-use-of-meglumine-antimoniate-in-american-tegumentary-leishmaniasis-patients
#9
Débora Cristina de Oliveira Bezerra, Renata Oliveira de Barcelos, Ellen Carvalho de Castro, Claudia Cristina Jardim Duarte, Raquel de Vasconcellos Carvalhaes Oliveira, Tania Salgado de Sousa Torraca, Maria Helena de Araújo-Melo, Frederico Pereira Bom Braga, Benivaldo Ramos Ferreira Terceiro, Lúcia Regina do Nascimento Brahim Paes, Armando de Oliveira Schubach, Cláudia Maria Valete-Rosalino
INTRODUCTION: Tegumentary Leishmaniasis (TL) is a neglected, non-contagious, infectious disease, caused by different protozoa species of the Leishmania genus that affects skin and mucous membranes. Meglumine Antimoniate (MA), the first drug of choice for TL treatment in Brazil, has already been associated with cochlear toxicity, which is defined as damages of the cochlea caused by exposure to chemical substances, resulting in reversible or irreversible hearing loss. Auditory monitoring for cochlear toxicity aims at the early detection of auditory disorders, enabling, when possible, hearing to be preserved or an early auditory rehabilitation...
2017: PloS One
https://www.readbyqxmd.com/read/28045786/three-dimensional-force-profile-during-cochlear-implantation-depends-on-individual-geometry-and-insertion-trauma
#10
Ersin Avci, Tim Nauwelaers, Volkmar Hamacher, Andrej Kral
OBJECTIVES: To preserve the acoustic hearing, cochlear implantation has to be as atraumatic as possible. Therefore, understanding the impact of the cochlear geometry on insertion forces and intracochlear trauma might help to adapt and improve the electrode insertion and reduce the probability of intracochlear trauma. DESIGN: The study was conducted on 10 fresh-frozen human temporal bones. The inner ear was removed from the temporal bone. The bony capsule covering the scala vestibuli was removed and the dissected inner ear was mounted on the three-dimensional (3D) force measurement system (Agilent technologies, Nano UTM, Santa Clare, CA)...
December 27, 2016: Ear and Hearing
https://www.readbyqxmd.com/read/28043400/dental-issues-in-lacrimo-auriculo-dento-digital-syndrome-an-autosomal-dominant-condition-with-clinical-and-genetic-variability
#11
M J Hajianpour, Hannah Bombei, Scott M Lieberman, Rachael Revell, Rachana Krishna, Robert Gregorsok, Simon Kao, Jeff M Milunsky
BACKGROUND AND OVERVIEW: Lacrimo-auriculo-dento-digital (LADD) syndrome is an autosomal dominant disorder with variable lacrimal and salivary gland hypoplasia and aplasia, auricular anomalies and hearing loss, dental defects and caries, and digital anomalies. CASE DESCRIPTION: The authors present the cases of 2 unrelated children with enamel defects and history of dry mouth leading to recurrent dental caries. The referring diagnoses were Sjögren disease and hypohidrotic ectodermal dysplasia, respectively...
December 30, 2016: Journal of the American Dental Association
https://www.readbyqxmd.com/read/28040015/comparing-the-perceptual-contributions-of-cochlear-scaled-entropy-and-speech-level
#12
Yilai Shu, Xiao-Xing Feng, Fei Chen
Cochlear-scaled entropy (CSE) has been suggested to be a reliable predictor of speech intelligibility. Previous studies showed that speech segments with high root-mean-square (RMS) levels (H-levels) contained primarily vowels, which carry important information for speech recognition. The present work compared the contributions of high-CSE (H-entropy) and H-level segments to speech intelligibility. The natural speech was edited to generate two types of noise-replaced stimuli, which preserved the same percentages of largest CSE segments and highest RMS-level segments, and played to normal-hearing listeners in a recognition experiment...
December 2016: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/28034618/adenosine-receptors-regulate-susceptibility-to-noise-induced-neural-injury-in-the-mouse-cochlea-and-hearing-loss
#13
Srdjan M Vlajkovic, Kaushi Ambepitiya, Meagan Barclay, Detlev Boison, Gary D Housley, Peter R Thorne
Our previous studies have shown that the stimulation of A1 adenosine receptors in the inner ear can mitigate the loss of sensory hair cells and hearing loss caused by exposure to traumatic noise. Here, we focus on the role of adenosine receptors (AR) in the development of noise-induced neural injury in the cochlea using A1AR and A2AAR null mice (A1AR(-/-) and A2AAR(-/-)). Wildtype (WT) and AR deficient mice were exposed to octave band noise (8-16 kHz, 100 dB SPL) for 2 hours to induce cochlear injury and hearing loss...
December 26, 2016: Hearing Research
https://www.readbyqxmd.com/read/28031155/an-implantable-hearing-system-as-rehabilitation-for-hearing-loss-due-to-bilateral-aural-atresia-surgical-technique-and-audiological-results
#14
Rubens de Brito, Luzia Maria Pozzobom Ventura, José Carlos Jorge, Eduardo Boaventura Oliveira, Luiz Fernando Manzoni Lourencone
OBJECTIVE: To demonstrate the surgical technique and audiological results of a middle ear implant for restoring hearing in patients with bilateral aural atresia and microtia with conductive or mixed hearing loss. MATERIALS AND METHODS: In this prospective study, 12 subjects aged 12 years and older presenting with hearing loss and bilateral congenital aural atresia underwent surgical insertion of a middle ear implant. The patients underwent tympanomastoidectomy with a wide opening of the attic and preservation of the roof of the atresic tympanic bone to expose the middle ear and position the floating mass transducer of the implant...
December 2016: Journal of International Advanced Otology
https://www.readbyqxmd.com/read/28025904/intracochlear-pressure-changes-due-to-2-electrode-types
#15
Philipp Mittmann, Marlene Mittmann, Arneborg Ernst, Ingo Todt
Objective To preserve residual hearing in cochlear implant surgery, the electrode design has been refined, and an atraumatic insertion has become one aspect of cochlear implant research. Previous studies have described the effect of insertion speed and opening of the round window membrane on intracochlear pressure changes. The aim of our current study was to observe intracochlear pressure changes due to different cochlear implant electrodes in an artificial cochlear model with stable surrounding factors. Study Design Prospective controlled study...
December 1, 2016: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/28017747/complications-and-their-managements-of-large-intracranial-vestibular-schwannoma-via-retrosigmoid-approach
#16
Xiang Huang, Ming Xu, Jian Xu, Liangfu Zhou, Ping Zhong, Mingyu Chen, Kaiyuan Ji, Huiyu Chen, Ying Mao
OBJECTIVE: To investigate the common complications from the microsurgical treatment of large intracranial vestibular schwannoma (VS) via suboccipital retrosigmoid approach and to propose strategies for minimizing such complications. METHODS: We selected all large unilateral VS patients from the collected database (1999-2013) who underwent microsurgical resection as their initial treatment for histopathologically confirmed VS. Tumors larger than 30 x 20 mm were defined as large...
December 22, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/28007648/minocycline-attenuates-noise-induced-hearing-loss-in-rats
#17
Jing Zhang, Yong-Li Song, Ke-Yong Tian, Jian-Hua Qiu
Noise-induced hearing loss (NIHL) is a serious health concern and prevention of hair cell death or therapeutic intervention at the early stage of NIHL is critical to preserve hearing. Minocycline is a semi-synthetic derivative of tetracycline and has been shown to have otoprotective effects in ototoxic drug-induced hearing impairment, however, whether minocycline can protect against NIHL has not been investigated. The present study demonstrated elevated ABR (auditory brainstem response) thresholds and outer hair cell loss following traumatic noise exposure, which was mitigated by intraperitoneal administration of minocycline (45mg/kg/d) for 5 consecutive days...
December 19, 2016: Neuroscience Letters
https://www.readbyqxmd.com/read/28003407/muscarinic-acetylcholine-receptors-control-baseline-activity-and-hebbian-stimulus-timing-dependent-plasticity-in-fusiform-cells-of-the-dorsal-cochlear-nucleus
#18
Roxana A Stefanescu, Susan E Shore
Cholinergic modulation contributes to adaptive sensory processing by controlling spontaneous and stimulus-evoked neural activity and long term synaptic plasticity. In the dorsal cochlear nucleus, in vitro activation of muscarinic acetylcholine receptors (mAChRs) alters the spontaneous activity of DCN neurons and interacts with NMDA (N-methyl-D-aspartate) and endocannabinoid receptors to modulate the plasticity of parallel fiber synapses onto fusiform cells by converting Hebbian LTP to anti-Hebbian LTD. Because noise exposure and tinnitus are known to increase spontaneous activity in fusiform cells as well as alter stimulus-timing dependent plasticity (StTDP), it is important to understand the contribution of mAChRs to in vivo spontaneous activity and plasticity in fusiform cells...
December 21, 2016: Journal of Neurophysiology
https://www.readbyqxmd.com/read/27981336/erratum-to-fractionated-vs-single-fraction-stereotactic-radiotherapy-in-patients-with-vestibular-schwannoma-hearing-preservation-and-patients-self-reported-outcome-based-on-an-established-questionnaire
#19
Kerstin A Kessel, H Fischer, M M Vogel, M Oechsner, H Bier, B Meyer, S E Combs
No abstract text is available yet for this article.
December 15, 2016: Strahlentherapie und Onkologie: Organ der Deutschen Röntgengesellschaft ... [et Al]
https://www.readbyqxmd.com/read/27974068/endolymphatic-sac-drainage-for-the-treatment-of-m%C3%A3-ni%C3%A3-re-s-disease
#20
R F Bento, J C Cisneros, A C De Oliveira Fonseca
OBJECTIVE: To describe the results obtained with endolymphatic sac drainage in patients with Ménière's disease. METHOD: A retrospective case review study was conducted of 95 Ménière's disease patients who underwent endolymphatic sac drainage in a tertiary care referral centre, after failing a long course of medical management. The main outcome measures were vertigo control and hearing preservation. RESULTS: In patients with unilateral disease, vertigo control was obtained in 94...
December 15, 2016: Journal of Laryngology and Otology
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