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https://www.readbyqxmd.com/read/29342440/the-critical-warning-sign-of-real-time-brainstem-auditory-evoked-potentials-during-microvascular-decompression-for-hemifacial-spasm
#1
Sang-Ku Park, Byung-Euk Joo, Seunghoon Lee, Jeong-A Lee, Jeong-Ho Hwang, Doo-Sik Kong, Dae-Won Seo, Kwan Park, Hoon-Taek Lee
OBJECTIVE: The aim of this study was to define the critical warning sign of real-time brainstem auditory evoked potential (BAEP) for predicting hearing loss (HL) after microvascular decompression (MVD) for hemifacial spasm (HFS). METHODS: Nine hundred and thirty-two patients with HFS who underwent MVD with intraoperative monitoring (IOM) of BAEP were analyzed. We used a 43.9 Hz/s stimulation rate and 400 averaging trials to obtain BAEP. To evaluate HL, pure-tone audiometry and speech discrimination scoring were performed before and one week after surgery...
January 4, 2018: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/29342223/development-of-a-job-exposure-matrix-for-noise-in-the-swedish-soft-tissue-paper-industry
#2
Richard Lee Neitzel, Marianne Andersson, Helena Eriksson, Kjell Torén, Eva Andersson
Objectives: Noise exposure is a common occupational hazard, but has not been sufficiently characterized in paper mills. We developed a job-exposure matrix (JEM) for noise exposure for use in estimating exposures among Swedish soft tissue paper mill workers. Methods: We used a combination of area and personal dosimetry noise exposure measurements made at four soft tissue paper mills by industry and research staff between 1977 and 2013 to estimate noise exposures by department, location, and job title...
December 16, 2017: Annals of Work Exposures and Health
https://www.readbyqxmd.com/read/29342147/missed-opportunities-do-states-require-screening-of-children-for-health-conditions-that-interfere-with-learning
#3
Delaney Gracy, Anupa Fabian, Corey Hannah Basch, Maria Scigliano, Sarah A MacLean, Rachel K MacKenzie, Irwin E Redlener
METHODS: Investigators reviewed websites of state departments of health and education, and legislation for all 50 states and DC. For states with mandated screenings and a required form, investigators applied structured analysis to assess HBL inclusion. RESULTS: No state mandated that schools require screening for all 7 HBLs. Less than half (49%) required comprehensive school health examinations and only 12 states plus DC required a specific form. Of these, 12 of the forms required documentation of vision screening, 11 of hearing screening, and 12 of dental screening...
2018: PloS One
https://www.readbyqxmd.com/read/29342057/audiologic-natural-history-of-small-volume-cochleovestibular-schwannomas-in-neurofibromatosis-type-2
#4
Alvin T deTorres, Carmen C Brewer, Chris K Zalewski, Kelly A King, Robert Walker, Gretchen C Scott, Ashok R Asthagiri, Prashant Chittiboina, Hung Jeffrey Kim
OBJECTIVE: To characterize the audiometric natural progression in patient-ears with small volume (<1,000 mm), treatment-naïve cochleovestibular schwannomas (CVSs) in Neurofibromatosis Type 2 (NF2). STUDY DESIGN: Prospective, longitudinal cohort study. SETTING: Quaternary medical research institute. PATIENTS: One hundred eleven ears in 71 NF2 patients with small, treatment-naïve CVSs observed from July 2006 to July 2016...
January 16, 2018: Otology & Neurotology
https://www.readbyqxmd.com/read/29342056/-product-versus-process-measures-in-assessing-speech-recognition-outcomes-in-adults-with-cochlear-implants
#5
Aaron C Moberly, Irina Castellanos, Kara J Vasil, Oliver F Adunka, David B Pisoni
HYPOTHESES: 1) When controlling for age in postlingual adult cochlear implant (CI) users, information-processing functions, as assessed using "process" measures of working memory capacity, inhibitory control, information-processing speed, and fluid reasoning, will predict traditional "product" outcome measures of speech recognition. 2) Demographic/audiologic factors, particularly duration of deafness, duration of CI use, degree of residual hearing, and socioeconomic status, will impact performance on underlying information-processing functions, as assessed using process measures...
January 16, 2018: Otology & Neurotology
https://www.readbyqxmd.com/read/29342055/benefit-of-preoperative-temporal-bone-ct-for-atraumatic-cochlear-implantation
#6
Alexandre Karkas, Nicolas Menjot de Champfleur, Alain Uziel, Michel Mondain, Jean-Luc Puel, Frédéric Venail
HYPOTHESIS: Evaluate the benefit of preoperative surgical planning using computed tomography (CT) for atraumatic cochlear implantation. BACKGROUND: The surgical technique has a direct impact on hearing and structure preservation. Much interest has been given to depth of electrode insertion. We focused on electrode diameter depending on exposure of round window membrane (RWM) as calculated on preoperative CT. METHODS: Measurements were calculated radiologically and anatomically on 10 temporal bones...
January 16, 2018: Otology & Neurotology
https://www.readbyqxmd.com/read/29342054/multicenter-us-clinical-trial-with-an-electric-acoustic-stimulation-eas-system-in-adults-final-outcomes
#7
Harold C Pillsbury, Margaret T Dillon, Craig A Buchman, Hinrich Staecker, Sandra M Prentiss, Michael J Ruckenstein, Douglas C Bigelow, Fred F Telischi, Diane M Martinez, Christina L Runge, David R Friedland, Nikolas H Blevins, Jannine B Larky, George Alexiades, David M Kaylie, Peter S Roland, Richard T Miyamoto, Douglas D Backous, Frank M Warren, Hussam K El-Kashlan, Heidi K Slager, Carisa Reyes, Allison I Racey, Oliver F Adunka
OBJECTIVE: To demonstrate the safety and effectiveness of the MED-EL Electric-Acoustic Stimulation (EAS) System, for adults with residual low-frequency hearing and severe-to-profound hearing loss in the mid to high frequencies. STUDY DESIGN: Prospective, repeated measures. SETTING: Multicenter, hospital. PATIENTS: Seventy-three subjects implanted with PULSAR or SONATA cochlear implants with FLEX electrode arrays. INTERVENTION: Subjects were fit postoperatively with an audio processor, combining electric stimulation and acoustic amplification...
January 16, 2018: Otology & Neurotology
https://www.readbyqxmd.com/read/29342053/gradual-symmetric-progression-of-dfna34-hearing-loss-caused-by-an-nlrp3-mutation-and-cochlear-autoinflammation
#8
Hiroshi Nakanishi, Yoshiyuki Kawashima, Kiyoto Kurima, Julie A Muskett, H Jeffrey Kim, Carmen C Brewer, Andrew J Griffith
OBJECTIVE: To characterize the audiometric phenotype of autosomal-dominant DFNA34 hearing loss (HL) caused by a missense substitution in the NLRP3 gene. NLRP3 encodes a critical component of the NLRP3 inflammasome that is activated in innate immune responses. STUDY DESIGN: This study was conducted under protocol 01-DC-0229 approved by the NIH Combined Neurosciences IRB. We performed medical and developmental history interviews and physical and audiological examinations of affected individuals with DFNA34 HL caused by the p...
January 16, 2018: Otology & Neurotology
https://www.readbyqxmd.com/read/29342052/preauricular-approach-for-cholesteatoma-resection-after-surgical-overclosure-of-the-external-auditory-canal-and-cochlear-implantation
#9
Steven A Telian
: Chronic suppurative otitis media can have long-term effects on hearing if not managed effectively. When combined with cholesteatoma the condition may require creation of an open mastoid cavity. Recurrence of cholesteatoma is a concern when cochlear implantation is performed with overclosure of the external auditory meatus. A 61-year-old female with recurrent cholesteatoma in this setting was treated using a preauricular approach to provide adequate visualization while preventing the need to remove the implant or risking injury to the internal components...
January 16, 2018: Otology & Neurotology
https://www.readbyqxmd.com/read/29342044/elevated-level-of-myeloperoxidase-deoxyribonucleic-acid-complex-in-the-middle-ear-fluid-obtained-from-patients-with-otitis-media-associated-with-antineutrophil-cytoplasmic-antibody-associated-vasculitis
#10
Shinya Morita, Yuji Nakamaru, Daigo Nakazawa, Fumihiko Hattanda, Haruki Shida, Yoshihiro Kusunoki, Kanako Watanabe, Sakiko Masuda, Dai Takagi, Masanobu Suzuki, Kimiko Hoshino, Atsushi Fukuda, Utano Tomaru, Akihiro Homma, Akihiro Ishizu
OBJECTIVE: The purpose was to explore the presence of myeloperoxidase (MPO)-deoxyribonucleic acid (DNA) complex as a surrogate marker of neutrophil extracellular traps (NETs) in the middle ear fluid, and to clarify the correlation between its quantifiable level and hearing outcome in patients with otitis media associated with antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV). STUDY DESIGN: Prospective study. SETTING: Tertiary referral center...
January 16, 2018: Otology & Neurotology
https://www.readbyqxmd.com/read/29342040/unilateral-sensorineural-hearing-loss-presenting-with-bilateral-temporal-bone-lesions
#11
Mark Sakai, Cameron C Wick, Joe Walter Kutz
No abstract text is available yet for this article.
January 16, 2018: Otology & Neurotology
https://www.readbyqxmd.com/read/29342037/preservation-of-cells-of-the-organ-of-corti-and-innervating-dendritic-processes-following-cochlear-implantation-in-the-human-an-immunohistochemical-study
#12
Takefumi Kamakura, Jennifer T O'Malley, Joseph B Nadol
HYPOTHESIS: This study evaluates the degree of preservation of hair cells, supporting cells, and innervating dendritic processes after cochlear implantation in the human using immunohistochemical methods. BACKGROUND: Surgical insertion of a cochlear implant electrode induces various pathologic changes within the cochlea including insertional trauma, foreign body response, inflammation, fibrosis, and neo-osteogenesis. These changes may result in loss of residual acoustic hearing, adversely affecting the use of hybrid implants, and may result in loss of putative precursor cells, limiting the success of future regenerative protocols...
January 16, 2018: Otology & Neurotology
https://www.readbyqxmd.com/read/29342035/systematic-review-of-hearing-preservation-after-radiotherapy-for-vestibular-schwannoma
#13
Adam R Coughlin, Tyler J Willman, Samuel P Gubbels
OBJECTIVE: To determine the long-term hearing preservation rate for spontaneous vestibular schwannoma treated by primary radiotherapy. DATA SOURCES: The MEDLINE/PubMed, Web of Science, Cochrane Reviews, and EMBASE databases were searched using a comprehensive Boolean keyword search developed in conjunction with a scientific librarian. English language papers published from 2000 to 2016 were evaluated. STUDY SELECTION: Inclusion criteria: full articles, pretreatment and posttreatment audiograms or audiogram based scoring system, vestibular schwannoma only tumor type, reported time to follow-up, published after 1999, use of either Gamma Knife or linear accelerator radiotherapy...
January 16, 2018: Otology & Neurotology
https://www.readbyqxmd.com/read/29341905/intensity-difference-limens-in-adult-cba-caj-mice-mus-musculus
#14
Anastasiya Kobrina, Katrina L Toal, Micheal L Dent
Mice have emerged as important models of auditory perception and acoustic communication. To study and model complex sound perception and communication, basic hearing abilities have to be established, yet intensity difference limens have not been measured in CBA/CAJ mice. Nine mice were trained using operant conditioning procedures with positive reinforcement to discriminate sound intensity across frequencies. Intensity difference limens were measured for 12, 16, 24, and 42 kHz tones at 10 and 30 dB sensation levels...
January 13, 2018: Behavioural Processes
https://www.readbyqxmd.com/read/29341395/health-of-southern-tasmanian-4-to-6-year-old-children-in-out-of-home-care-compared-to-peers
#15
Marie Rauter, Anagha Jayakar, Tom Clemens, Zaharenia Galanos, Louise Newbery, Andrew Whelan
AIM: To compare the health of 4- to 6-year-old children in out-of-home care (OOHC) in Southern Tasmania with their peers. METHODS: Demographic and health data collection and prospective health assessment of all 4- to 6-year olds in OOHC in Southern Tasmania on 30 August 2011 was undertaken. Data were compared to Tasmanian and/or Australian peers. RESULTS: A total of 109 of 129 children aged 4 to 6 years were included in the study. Time in OOHC was on average 38 (range 0-76) months...
January 17, 2018: Journal of Paediatrics and Child Health
https://www.readbyqxmd.com/read/29341316/deferoxamine-promotes-mesenchymal-stem-cell-homing-in-noise-induced-injured-cochlea-through-pi3k-akt-pathway
#16
A A Peyvandi, H-A Abbaszadeh, N Ahmady Roozbahany, A Pourbakht, S Khoshsirat, H Haddadzade Niri, H Peyvandi, S Niknazar
OBJECTIVE: Over 5% of the world's population suffers from disabling hearing loss. Stem cell homing in target tissue is an important aspect of cell-based therapy, which its augmentation increases cell therapy efficiency. Deferoxamine (DFO) can induce the Akt activation, and phosphorylation status of AKT (p-AKT) upregulates CXC chemokine receptor-4 (CXCR4) expression. We examined whether DFO can enhance mesenchymal stem cells (MSCs) homing in noise-induced damaged cochlea by PI3K/AKT dependent mechanism...
January 17, 2018: Cell Proliferation
https://www.readbyqxmd.com/read/29340754/preoperative-evaluation-of-cochlear-implantation-through-the-round-window-membrane-in-the-facial-recess-using-high-resolution-computed-tomography
#17
Li-Hong Xie, Jie Tang, Wen-Jie Miao, Xiang-Long Tang, Heng Li, An-Zhou Tang
PURPOSE: We evaluated the risk of cochlear implantation through the round window membrane in the facial recess through a preoperative analysis of the angle between the facial nerve-round window and the cranial midline using high-resolution temporal bone CT. METHODS: Temporal bone CT films of 176 patients with profound sensorineural hearing loss at our hospital from 2013 to 2015 were reviewed. The preoperative temporal bone CT scans of the patients were retrospectively analysed...
January 16, 2018: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/29340625/seen-through-the-patients-eyes-surgical-safety-and-checklists
#18
Jochen Bergs, Frank Lambrechts, Melissa Desmedt, Johan Hellings, Ward Schrooten, Annemie Vlayen, Dominique Vandijck
Objective: We sought to explore the views patients have towards surgical safety and checklists. As a secondary aim, we explored if previous experience of error or other patient characteristics influence these views. Design: A cross-sectional survey study design was applied. Participants: The Flemish Patients' Platform network and social media were used to recruit participants. Main outcome measure(s): An 11-item questionnaire was designed to assess the following constructs: perception of surgical safety, attitudes towards the WHO surgical safety checklist and attitudes regarding checklist usage...
January 11, 2018: International Journal for Quality in Health Care
https://www.readbyqxmd.com/read/29340520/analysis-of-serum-microrna-expression-in-male-workers-with-occupational-noise-induced-hearing-loss
#19
Y H Li, Y Yang, Y T Yan, L W Xu, H Y Ma, Y X Shao, C J Cao, X Wu, M J Qi, Y Y Wu, R Chen, Y Hong, X H Tan, L Yang
Occupational noise-induced hearing loss (ONIHL) is a prevalent occupational disorder that impairs auditory function in workers exposed to prolonged noise. However, serum microRNA expression in ONIHL subjects has not yet been studied. We aimed to compare the serum microRNA expression profiles in male workers of ONIHL subjects and controls. MicroRNA microarray analysis revealed that four serum microRNAs were differentially expressed between controls (n=3) and ONIHL subjects (n=3). Among these microRNAs, three were upregulated (hsa-miR-3162-5p, hsa-miR-4484, hsa-miR-1229-5p) and one was downregulated (hsa-miR-4652-3p) in the ONIHL group (fold change >1...
January 11, 2018: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
https://www.readbyqxmd.com/read/29340386/on-chip-functional-neuroimaging-with-mechanical-stimulation-in-caenorhabditis-elegans-larvae-for-studying-development-and-neural-circuits
#20
Yongmin Cho, David N Oakland, Sol Ah Lee, William R Schafer, Hang Lu
Mechanosensation is fundamentally important for the abilities of an organism to experience touch, hear sounds, and maintain balance. Caenorhabditis elegans is a powerful system for studying mechanosensation as this worm is well suited for in vivo functional imaging of neurons. Many years of research using labor-intensive methods have generated a wealth of knowledge about mechanosensation in C. elegans, and the recent microfluidic-based platforms continue to push the boundary for this field. However, developmental aspects of sensory biology, including mechanosensation, are still not fully understood...
January 17, 2018: Lab on a Chip
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