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Cochlear implants

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https://www.readbyqxmd.com/read/28098509/-compassionate-use-protocol-for-auditory-brainstem-implantation-in-neurofibromatosis-type-2-early-house-ear-institute-experience
#1
Daniel S Roberts, William H Slattery, Brian S Chen, Steve R Otto, Marc S Schwartz, Gregory P Lekovic
OBJECTIVE: To report the preliminary outcomes of auditory brainstem implantation (ABI) under a compassionate use protocol for two ABI devices that are not approved by the US Food and Drug Administration. METHODS: A retrospective review was performed of neurofibromatosis type 2 (NF2) patients who underwent microsurgery for vestibular schwannoma (VS) and placement of either the Cochlear ABI541 or Med-El Synchrony ABIs. Peri-operative and device- related complications were reviewed...
January 18, 2017: Cochlear Implants International
https://www.readbyqxmd.com/read/28098502/united-kingdom-national-paediatric-bilateral-project-results-of-professional-rating-scales-and-parent-questionnaires
#2
H E Cullington, D Bele, J C Brinton, S Cooper, M Daft, J Harding, N Hatton, J Humphries, M E Lutman, J Maddocks, J Maggs, K Millward, G O'Donoghue, S Patel, K Rajput, V Salmon, T Sear, A Speers, A Wheeler, K Wilson
OBJECTIVES: This fourteen-centre project used professional rating scales and parent questionnaires to assess longitudinal outcomes in a large non-selected population of children receiving simultaneous and sequential bilateral cochlear implants. METHODS: This was an observational non-randomized service evaluation. Data were collected at four time points: before bilateral cochlear implants or before the sequential implant, one year, two years, and three years after...
January 18, 2017: Cochlear Implants International
https://www.readbyqxmd.com/read/28097918/the-hearing-benefit-of-cochlear-implantation-for-individuals-with-unilateral-hearing-loss-but-no-tinnitus
#3
Henryk Skarzynski, Artur Lorens, Marika Kruszynska, Anita Obrycka, Dorota Pastuszak, Piotr Henryk Skarzynski
CONCLUSION: Cochlear implants improve the hearing abilities of individuals with unilateral hearing loss and no tinnitus. The benefit is no different from that seen in patients with unilateral hearing loss and incapacitating tinnitus. OBJECTIVE: To evaluate hearing outcomes after cochlear implantation in individuals with unilateral hearing loss and no tinnitus and compare them to those obtained in a similar group who had incapacitating tinnitus. METHODS: Six cases who did not experience tinnitus before operation and 15 subjects with pre-operative tinnitus were evaluated with a structured interview, a monosyllabic word test under difficult listening situations, a sound localization test, and an APHAB (abbreviated profile of hearing aid benefit) questionnaire...
January 18, 2017: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/28089173/use-of-interactive-ibooks-for-patient-education-in-otology
#4
Omid Moshtaghi, Yarah M Haidar, Ronald Sahyouni, Ramin Rajaii, Afsheen Moshtaghi, Amin Mahmoodi, Yaser Ghavami, Harrison W Lin, Hamid R Djalilian
INTRODUCTION: Physicians in the ambulatory setting face challenges in adequately educating patients in a brief office encounter. OBJECTIVE: To evaluate the efficacy of an iPad-based interactive educational module (iBook) in various otologic pathologies. METHODS: Patients presenting with symptoms of tinnitus, dizziness, hearing loss, or cochlear implant evaluation were included. In total, 44 patients received the iBook and 22 patients served as controls...
December 29, 2016: American Journal of Otolaryngology
https://www.readbyqxmd.com/read/28088500/voice-emotion-perception-and-production-in-cochlear-implant-users
#5
REVIEW
N T Jiam, M Caldwell, M L Deroche, M Chatterjee, C J Limb
Voice emotion is a fundamental component of human social interaction and social development. Unfortunately, cochlear implant users are often forced to interface with highly degraded prosodic cues as a result of device constraints in extraction, processing, and transmission. As such, individuals with cochlear implants frequently demonstrate significant difficulty in recognizing voice emotions in comparison to their normal hearing counterparts. Cochlear implant-mediated perception and production of voice emotion is an important but relatively understudied area of research...
January 11, 2017: Hearing Research
https://www.readbyqxmd.com/read/28087418/degeneration-of-auditory-nerve-fibers-in-guinea-pigs-with-severe-sensorineural-hearing-loss
#6
Steven Kroon, Dyan Ramekers, Emma M Smeets, Ferry G J Hendriksen, Sjaak F L Klis, Huib Versnel
Damage to and loss of the organ of Corti leads to secondary degeneration of the spiral ganglion cell (SGC) somata of the auditory nerve. Extensively examined in animal models, this degeneration process of SGC somata following deafening is well known. However, degeneration of auditory nerve axons, which conduct auditory information towards the brainstem, and its relation to SGC soma degeneration are largely unknown. The consequences of degeneration of the axons are relevant for cochlear implantation, which is applied to a deafened system but depends on the condition of the auditory nerve...
January 10, 2017: Hearing Research
https://www.readbyqxmd.com/read/28086905/reduction-of-eddy-current-losses-in-inductive-transmission-systems-with-ferrite-sheets
#7
Matthias Maaß, Andreas Griessner, Viktor Steixner, Clemens Zierhofer
BACKGROUND: Improvements in eddy current suppression are necessary to meet the demand for increasing miniaturization of inductively driven transmission systems in industrial and biomedical applications. The high magnetic permeability and the simultaneously low electrical conductivity of ferrite materials make them ideal candidates for shielding metallic surfaces. For systems like cochlear implants the transmission of data as well as energy over an inductive link is conducted within a well-defined parameter set...
January 5, 2017: Biomedical Engineering Online
https://www.readbyqxmd.com/read/28079679/influence-of-behavior-on-complications-of-osseointegrated-bone-conduction-devices-in-children
#8
Michael E Kubala, Matthew D Cox, Kurt L Nelson, Gresham T Richter, John L Dornhoffer
OBJECTIVE: Compare incidences of complications following implantation of osseointegrated bone conduction devices (OBCD) between children with and without behavioral disorders. STUDY DESIGN: Case series with chart review. SETTING: Tertiary referral center otology and neurotology practice. PATIENTS: Pediatric patients who underwent implantation of OBCD between May 2009 and July 2014 at Arkansas Children's Hospital. INTERVENTIONS: Implantation with Cochlear BAHA 200 series, Cochlear BAHA BI300, or Oticon OBCD...
January 10, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28079462/establishing-the-standard-method-of-cochlear-implant-in-rongchang-pig
#9
Wei Chen, Haijin Yi, Liang Zhang, Fei Ji, Shuolong Yuan, Yue Zhang, Lili Ren, Jianan Li, Lei Chen, Weiwei Guo, Shiming Yang
CONCLUSIONS: In this investigation, a large mammal, Rongchang pigs were used to successfully establish a research platform for cochlear implant study on the routine use of it in clinic. OBJECTIVE: The aim of this study was to establish a standard method of cochlear implant in a large mammal-pig. METHODS: Rongchang pigs were selected, then divided into two groups: normal-hearing group (Mitf +/+) and mutation group with hearing loss (Mitf -/-)...
January 12, 2017: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/28078408/-rehabilitation-in-children-and-adults-an-overview
#10
A Illg
BACKGROUND: The rehabilitation of patients with hearing loss includes technical, medical, and therapeutic education interventions. The success of cochlear implant (CI) treatment depends on joint coordination and execution of all measures. During the history of CI, expansion of the spectrum of indication criteria has led to evolution of auditory-verbal therapy, speech therapy, and auditory training. MATERIALS AND METHODS: This paper describes the current status of therapeutic knowledge and experience of hearing and speech therapeutic rehabilitation in children and adults...
January 11, 2017: HNO
https://www.readbyqxmd.com/read/28067750/unilateral-hearing-loss-understanding-speech-recognition-and-localization-variability-implications-for-cochlear-implant-candidacy
#11
Jill B Firszt, Ruth M Reeder, Laura K Holden
OBJECTIVES: At a minimum, unilateral hearing loss (UHL) impairs sound localization ability and understanding speech in noisy environments, particularly if the loss is severe to profound. Accompanying the numerous negative consequences of UHL is considerable unexplained individual variability in the magnitude of its effects. Identification of covariables that affect outcome and contribute to variability in UHLs could augment counseling, treatment options, and rehabilitation. Cochlear implantation as a treatment for UHL is on the rise yet little is known about factors that could impact performance or whether there is a group at risk for poor cochlear implant outcomes when hearing is near-normal in one ear...
November 4, 2016: Ear and Hearing
https://www.readbyqxmd.com/read/28067077/clinical-outcomes-with-the-kanso%C3%A2-off-the-ear-cochlear-implant-sound-processor
#12
Stefan J Mauger, Marian Jones, Esti Nel, Janine Del Dot
OBJECTIVE: To investigate clinical outcomes and subjective ratings of the Kanso™ off-the-ear (OTE) cochlear implant sound processor. DESIGN: Prospective, within-subject design investigating outcomes with a range of single and dual-microphone programmes for Kanso compared to conventional behind-the-ear (BTE) sound processors. STUDY SAMPLE: Twenty post-lingually hearing-impaired cochlear implant recipients who were experienced Nucleus® 5 or Nucleus® 6 BTE users...
January 9, 2017: International Journal of Audiology
https://www.readbyqxmd.com/read/28060992/a-longitudinal-study-in-children-with-sequential-bilateral-cochlear-implants-time-course-for-the-second-implanted-ear-and-bilateral-performance
#13
Ruth M Reeder, Jill B Firszt, Jamie H Cadieux, Michael J Strube
Purpose: Whether, and if so when, a second-ear cochlear implant should be provided to older, unilaterally implanted children is an ongoing clinical question. This study evaluated rate of speech recognition progress for the second implanted ear and with bilateral cochlear implants in older sequentially implanted children and evaluated localization abilities. Method: A prospective longitudinal study included 24 bilaterally implanted children (mean ear surgeries at 5...
January 1, 2017: Journal of Speech, Language, and Hearing Research: JSLHR
https://www.readbyqxmd.com/read/28060175/cochlear-nerve-deficiency-and-brain-abnormalities-in-pediatric-patients
#14
Thierry Morlet, Markian Pazuniak, Robert C O'Reilly, Vinay Kandula, Arabinda K Choudhary
HYPOTHESIS: To investigate the intracranial abnormalities present in children with cochlear nerve deficiency (CND), including abnormalities of other cranial nerves, and to describe their auditory abilities. BACKGROUND: The prevalence of CND has increased with the development of high resolution magnetic resonance imaging (MRI). There are varying degrees of CND from true aplasia to hypoplasia. The etiology of CND remains unclear and it may be associated with intracranial abnormalities in some instances...
January 4, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28060022/otosclerosis-an-update-on-diagnosis-and-treatment
#15
Lora Batson, Denise Rizzolo
Otosclerosis is a complex and progressive disease of pathological bone remodeling that affects the otic capsule of the temporal bone, resulting in hearing loss. Although traditional diagnostic methods are still used, improvements in technology and research have paved the way for additional diagnostic techniques and advancements. The traditional treatment of otosclerosis, stapes surgery, is now being augmented or replaced by innovations in hearing aid technology and cochlear implants. Earlier diagnosis of otosclerosis can occur through understanding of the cause, risk factors, and current diagnostic testing...
February 2017: JAAPA: Official Journal of the American Academy of Physician Assistants
https://www.readbyqxmd.com/read/28059448/change-in-loneliness-after-intervention-with-cochlear-implants-or-hearing-aids
#16
Kevin J Contrera, Yoon K Sung, Joshua Betz, Lingsheng Li, Frank R Lin
OBJECTIVE: To investigate the impact of hearing aid (HA) and cochlear implant (CI) use on loneliness in adults. STUDY DESIGN: Prospective observational cohort study. METHODS: One hundred and thirteen adults, aged ≥ 50 years, with postlingual hearing loss and receiving routine clinical care at a tertiary academic medical center, were evaluated with the University of California at Los Angeles Loneliness Scale before and 6 and 12 months after intervention with HAs or CIs...
January 6, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28056118/the-changing-cochlear-implant-center
#17
Daniel H Coelho
No abstract text is available yet for this article.
January 5, 2017: JAMA Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/28056017/when-hearing-is-tricky-speech-processing-strategies-in-prelingually-deafened-children-and-adolescents-with-cochlear-implants-having-good-and-poor-speech-performance
#18
Magdalene Ortmann, Pienie Zwitserlood, Arne Knief, Johanna Baare, Stephanie Brinkheetker, Antoinette Am Zehnhoff-Dinnesen, Christian Dobel
Cochlear implants provide individuals who are deaf with access to speech. Although substantial advancements have been made by novel technologies, there still is high variability in language development during childhood, depending on adaptation and neural plasticity. These factors have often been investigated in the auditory domain, with the mismatch negativity as an index for sensory and phonological processing. Several studies have demonstrated that the MMN is an electrophysiological correlate for hearing improvement with cochlear implants...
2017: PloS One
https://www.readbyqxmd.com/read/28054149/a-model-of-electrically-stimulated-auditory-nerve-fiber-responses-with-peripheral-and-central-sites-of-spike-generation
#19
Suyash Narendra Joshi, Torsten Dau, Bastian Epp
A computational model of cat auditory nerve fiber (ANF) responses to electrical stimulation is presented. The model assumes that (1) there exist at least two sites of spike generation along the ANF and (2) both an anodic (positive) and a cathodic (negative) charge in isolation can evoke a spike. A single ANF is modeled as a network of two exponential integrate-and-fire point-neuron models, referred to as peripheral and central axons of the ANF. The peripheral axon is excited by the cathodic charge, inhibited by the anodic charge, and exhibits longer spike latencies than the central axon; the central axon is excited by the anodic charge, inhibited by the cathodic charge, and exhibits shorter spike latencies than the peripheral axon...
January 4, 2017: Journal of the Association for Research in Otolaryngology: JARO
https://www.readbyqxmd.com/read/28052264/a-retrospective-multicentre-cohort-review-of-patient-characteristics-and-surgical-aspects-versus-the-long-term-outcomes-for-recipients-of-a-fully-implantable-active-middle-ear-implant
#20
Philippe P Lefebvre, Javier Gisbert, Domenico Cuda, Stéphane Tringali, Arnaud Deveze
OBJECTIVE: To summarise treatment outcomes compared to surgical and patient variables for a multicentre recipient cohort using a fully implantable active middle ear implant for hearing impairment. To describe the authors' preferred surgical technique to determine microphone placement. STUDY DESIGN: Multicentre retrospective, observational survey. SETTING: Five tertiary referral centres. PATIENTS: Carina recipients (66 ears, 62 subjects) using the current Cochlear® Carina® System or the legacy device, the Otologics® Fully Implantable Middle Ear, with a T2 transducer...
January 5, 2017: Audiology & Neuro-otology
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