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Hearing Preservation

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https://www.readbyqxmd.com/read/28219164/-a-combination-use-of-endoscope-and-microscope-in-cerebral-pontine-angle-surgery
#1
Z Y Wang, H Jia, J Yang, H Y Tan, H Wu
Objective: To evaluate the application of combination use of microscope and endoscope in cerebral pontine angle (CPA) surgery. Methods: A total of 72 patients undergone lateral skull base surgeries via endoscope under microscopic control from January 2006 to January 2015 was reviewed respectively. The patients including 35 males and 37 females were composed of 22 cases of vestibular swannnomas, 45 cases of cranial neuropathy and 5 cases of CPA chelesteatoma. Twenty cases of vestibular swannnomas, 15 cases of cranial neuropathy and 2 cases of CPA chelesteatoma undergone the surgery via retrosigmoid approach, while other cases undergone the surgery via retrolabyrinthine approach...
February 7, 2017: Zhonghua Er Bi Yan Hou Tou Jing Wai Ke za Zhi, Chinese Journal of Otorhinolaryngology Head and Neck Surgery
https://www.readbyqxmd.com/read/28207578/the-impact-of-a-cochlear-implant-electrode-array-on-the-middle-ear-transfer-function
#2
David Pazen, Andreas Anagiotos, Maike Nünning, Antoniu-Oreste Gostian, Magdalene Ortmann, Dirk Beutner
OBJECTIVES: As a treatment for partial deafness with residual hearing in the lower frequency range, the combined acoustic and electric stimulation of the cochlea has become widespread. Acoustic stimulation is provided by a hearing aid's airborne sound and the electric stimulation by a cochlear implant electrode array, which may be inserted through the round window or a cochleostomy. To take advantage of that concept, it is essential to preserve residual hearing after surgery. Therefore, the intracochlear electrode array should not compromise the middle ear vibration transmission...
February 15, 2017: Ear and Hearing
https://www.readbyqxmd.com/read/28193245/early-disease-progression-of-hurler-syndrome
#3
Bridget T Kiely, Jennifer L Kohler, Hannah Y Coletti, Michele D Poe, Maria L Escolar
BACKGROUND: Newborn screening for mucopolysaccharidosis type I (MPS I) shows promise to improve outcomes by facilitating early diagnosis and treatment. However, diagnostic tests for MPS I are of limited value in predicting whether a child will develop severe central nervous system disease associated with Hurler syndrome, or minimal or no central nervous system involvement associated with the attenuated phenotypes (Hurler-Scheie and Scheie syndromes). Given that the optimal treatment differs between Hurler syndrome and the attenuated MPS I phenotypes, the absence of a reliable prognostic biomarker complicates clinical decision making for infants diagnosed through newborn screening...
February 14, 2017: Orphanet Journal of Rare Diseases
https://www.readbyqxmd.com/read/28180036/low-dose-gamma-knife-radiosurgery-for-vestibular-schwannomas-tumor-control-and-cranial-nerve-function-preservation-after-11-gy
#4
Andrew J Schumacher, Rohan R Lall, Rishi R Lall, Allan Nanney Iii, Amit Ayer, Samir Sejpal, Benjamin P Liu, Maryanne Marymont, Plato Lee, Bernard R Bendok, John A Kalapurakal, James P Chandler
Objectives This study aims to report tumor control rates and cranial nerve function after low dose (11.0 Gy) Gamma knife radiosurgery (GKRS) in patients with vestibular schwannomas. Methods A retrospective chart review was performed on 30 consecutive patients with vestibular schwannomas treated from March 2004 to August 2010 with GKRS at the Robert H. Lurie Comprehensive Cancer Center of Northwestern University. The marginal dose for all patients was 11.0 Gy prescribed to the 50% isodose line. Median follow-up time was 42 months...
February 2017: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/28167016/lateral-skull-base-surgery-in-a-pediatric-population-a-25-year-experience-in-a-referral-skull-base-center
#5
Golda Grinblat, Sampath Chandra Prasad, Andrea Fulcheri, Melissa Laus, Alessandra Russo, Mario Sanna
OBJECTIVE: To analyze the pathology and surgical outcomes of lateral skull base (LSB) procedures in a pediatric population. STUDY DESIGN: Retrospective case review in a referral skull base center. METHODS: Charts of pediatric patients who underwent defined LSB procedures from 1983 to 2015 for various pathologies were evaluated at our center. A systematic review of literature was performed and our results were compared with the literature. RESULTS: 63 patients presented with 65 diseased ears...
March 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/28165504/implementation-of-a-method-to-visualize-noise-induced-hearing-loss-in-mass-stranded-cetaceans
#6
Maria Morell, Andrew Brownlow, Barry McGovern, Stephen A Raverty, Robert E Shadwick, Michel André
Assessment of the impact of noise over-exposure in stranded cetaceans is challenging, as the lesions that lead to hearing loss occur at the cellular level and inner ear cells are very sensitive to autolysis. Distinguishing ante-mortem pathology from post-mortem change has been a major constraint in diagnosing potential impact. Here, we outline a methodology applicable to the detection of noise-induced hearing loss in stranded cetaceans. Inner ears from two mass strandings of long-finned pilot whales in Scotland were processed for scanning electron microscopy observation...
February 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28159538/the-effect-of-systemic-lipoic-acid-on-hearing-preservation-after-cochlear-implantation-via-the-round-window-approach-a-guinea-pig-model
#7
Mun Young Chang, Tae Mok Gwon, Ho Sun Lee, Jun Ho Lee, Seung Ha Oh, Sung June Kim, Min-Hyun Park
The present study aimed to evaluate the effects of systemic lipoic acid on hearing preservation after cochlear implantation. Twelve Dunkin-Hartley guinea pigs were randomly divided into two groups: the control group and the lipoic acid group. Animals in the lipoic acid group received lipoic acid intraperitoneally for 4 weeks. A sterilised silicone electrode-dummy was inserted through the round window to a depth of approximately 5 mm. The hearing level was measured using auditory brainstem responses (ABRs) prior to electrode-dummy insertion, and at 4 days and 1, 2, 3 and 4 weeks after electrode-dummy insertion...
January 31, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28154277/mitochondrial-cardiomyopathy-with-a-unique-99m-tc-mibi-123-i-bmipp-mismatch-pattern
#8
Ryosuke Tashiro, Noriko Onoue, Hiroya Rikimaru, Kenichi Tsukita, Hiroshi Fujita, Nobuhiro Yamaguchi, Takeshi Ishizuka, Yasushi Suzuki, Hiroyoshi Suzuki, Tsuyoshi Shinozaki
A 42-year-old man was referred to our hospital due to chest pain, diabetes mellitus, and sensorineural hearing loss. Transthoracic echocardiography revealed diffuse left ventricular hypokinesis. He was diagnosed with mitochondrial disease and a c.A3243G mutation was identified in his mitochondrial DNA. This case of mitochondrial cardiomyopathy demonstrated a low uptake of (123)I-BMIPP, while the uptake of (99m)Tc-MIBI was preserved. In contrast, previous reports have noted the increased uptake of(123)I-BMIPP and the decreased uptake of (99m)Tc-MIBI...
2017: Internal Medicine
https://www.readbyqxmd.com/read/28147573/low-frequency-fine-structure-cues-allow-for-the-online-use-of-lexical-stress-during-spoken-word-recognition-in-spectrally-degraded-speech
#9
Ying-Yee Kong, Alexandra Jesse
English listeners use suprasegmental cues to lexical stress during spoken-word recognition. Prosodic cues are, however, less salient in spectrally degraded speech, as provided by cochlear implants. The present study examined how spectral degradation with and without low-frequency fine-structure information affects normal-hearing listeners' ability to benefit from suprasegmental cues to lexical stress in online spoken-word recognition. To simulate electric hearing, an eight-channel vocoder spectrally degraded the stimuli while preserving temporal envelope information...
January 2017: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/28137246/functional-outcome-and-complications-after-the-microsurgical-removal-of-giant-vestibular-schwannomas-via-the-retrosigmoid-approach-a-retrospective-review-of-16-year-experience-in-a-single-hospital
#10
Xiang Huang, Jian Xu, Ming Xu, Mingyu Chen, Kaiyuan Ji, Junwei Ren, Ping Zhong
BACKGROUND: Intracranial vestibular schwannoma still remain to be difficulty for its unique microsurgical technique and preservation of neuro-function, as well as reducing common complications that may arise in surgery. METHODS: We consecutively enrolled 657 unilateral giant (>4 cm diameter) vestibular schwannoma patients treated in Huashan Hospital via the suboccipital retrosigmoid approach in the past 16 years. The extension of tumor removal, surgical mortality, facial nerve function, hearing, and the other main short and long-term complications were the studied parameters...
January 31, 2017: BMC Neurology
https://www.readbyqxmd.com/read/28128697/gamma-knife-radiosurgery-for-treatment-of-growing-vestibular-schwannomas-in-patients-with-neurofibromatosis-type-2-a-matched-cohort-study-with-sporadic-vestibular-schwannomas
#11
Ivo J Kruyt, Jeroen B Verheul, Patrick E J Hanssens, Henricus P M Kunst
OBJECTIVE Neurofibromatosis Type 2 (NF2) is a tumor syndrome characterized by an autosomal dominant pattern of inheritance. The hallmark of NF2 is the development of bilateral vestibular schwannomas (VSs), generally by 30 years of age. One of the first-line treatment options for small to medium-large VSs is radiosurgery. Although radiosurgery shows excellent results in sporadic VS, its use in NF2-related VS is still a topic of dispute. The aim of this study was to evaluate long-term tumor control, hearing preservation rates, and factors influencing outcome of optimally dosed, contemporary Gamma Knife radiosurgery (GKRS) for growing VSs in patients with NF2 and compare the findings to data obtained in patients with sporadic VS also treated by means of GKRS...
January 27, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28121979/protective-effects-of-acupuncture-against-gentamicin-induced-ototoxicity-in-rats-possible-role-of-neurotrophin-3
#12
Ping Zhou, Weijun Ma, Ying Sheng, Maoli Duan, Xiaotong Zhang
BACKGROUND The aim of this study was to investigate the protective effects of acupuncture against gentamicin-induced ototoxicity and explore the possible protective role of neurotrophin-3 (NT-3). MATERIAL AND METHODS Twenty-four rats were divided randomly into 4 groups: control group, gentamicin group, neitinggong group, and tinggong group. Rats in the gentamicin, neitinggong, and tinggong groups received intraperitoneal injection of gentamicin (100 mg/kg) for 14 consecutive days. Rats in the neitinggong and tinggong groups further received acupuncture at neitinggong or tinggong acupoints once every 2 days for 20 days...
January 25, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28108789/-surgical-indications-and-complications-management-in-vestibular-schwannoma
#13
S Rosahl, D Eßer
BACKGROUND: Recent surgical treatment concepts for patients with vestibular schwannoma (VS) require an interdisciplinary approach as well as recognition and mastering of complications. OBJECTIVE: This paper provides an overview of indications, as well as possible options for function preservation and management of complications in the surgical resection of these tumors. METHODS: Up-to-date treatment concepts and surgical indications were differentiated according to size and extent of tumors...
January 20, 2017: HNO
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
#14
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
#15
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
#16
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
#17
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
#18
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
#19
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 24, 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
#20
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
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