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Cochlear Implants International

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https://www.readbyqxmd.com/read/30332915/cochlear-implantation-in-children-with-auditory-neuropathy-lessons-from-brown-vialetto-van-laere-syndrome
#1
Phoebe Anderson, Simone Schaefer, Lise Henderson, Iain A Bruce
OBJECTIVE: Brown-Vialetto-Van Laere syndrome (BVVL) is a rare neurodegenerative disorder associated with auditory neuropathy (AN). The decision process for CI in AN is evolving with increasing evidence of efficacy. We evaluated the benefit of CI in children with BVVL syndrome. METHODS: A retrospective study reviewed the pre- and post-operative hearing outcomes of three patients with BVVL who presented for CI. A fourth patient with BVVL who was not suitable for CI is also discussed...
October 18, 2018: Cochlear Implants International
https://www.readbyqxmd.com/read/30293522/patterns-of-recognition-of-arabic-consonants-by-non-native-children-with-cochlear-implants-and-normal-hearing
#2
Farheen Naz Anis, Cila Umat, Kartini Ahmad, Badrulzaman Abdul Hamid
OBJECTIVE: This study examined the patterns of recognition of Arabic consonants, via information transmission analysis for phonological features, in a group of Malay children with normal hearing (NH) and cochlear implants (CI). METHOD: A total of 336 and 616 acoustic tokens were collected from six CI and 11 NH Malay children, respectively. The groups were matched for hearing age and duration of exposure to Arabic sounds. All the 28 Arabic consonants in the form of consonant-vowel /a/ were presented randomly twice via a loudspeaker at approximately 65 dB SPL...
October 6, 2018: Cochlear Implants International
https://www.readbyqxmd.com/read/30232935/cochlear-implant-in-thalassemia-patient-case-report
#3
Tanmaya Kataria, Mohnish Grover, Shitanshu Sharma, Sunil Samdani, Man Prakash Sharma
INTRODUCTION: Beta-thalassemias are a group of hereditary blood disorders characterized by anomalies in the synthesis of the beta chains of hemoglobin. Iron overload occurs in thalassemia, with blood transfusion therapy being the major cause. Deferoxamine continues to be the mainstay of therapy to remove excess iron in patients requiring long-term transfusions. One of the most important complications of deferoxamine therapy is neurosensory toxicity, including sensorineural hearing loss (SNHL)...
September 20, 2018: Cochlear Implants International
https://www.readbyqxmd.com/read/30126345/protecting-against-electrode-insertion-trauma-using-dexamethasone
#4
Scott Chambers, Carrie Newbold, Dimitra Stathopoulos, Karina Needham, Chris Miller, Frank Risi, Ya Lang Enke, Godofredo Timbol, Robert Cowan
OBJECTIVE: To compare the benefits of a dexamethasone-eluting array for hearing preservation and cochlear histopathology in low trauma (soft-surgery) and high trauma models of cochlear implant surgery. METHODS: Adult guinea pigs were implanted with an intra-cochlear array using two different surgical procedures: either a soft-surgery approach or following generation of electrode insertion trauma (high trauma). Two methods of dexamethasone delivery were evaluated: elution from an electrode array alone, and elution from a cochlear implant electrode array in combination with a pre-operative systemic injection...
August 20, 2018: Cochlear Implants International
https://www.readbyqxmd.com/read/30092154/the-use-of-the-cochlear-mini-microphone-mm-as-a-personal-radio-system-fm-with-young-children-who-are-deaf
#5
Clare Boddy, Gill Datta
OBJECTIVES: This paper describes the background, organization and findings of a project undertaken in 2016-2017, to examine the benefits and challenges of the use of the Cochlear Mini Microphone (MM) by the families of pre-school children with cochlear implants on the Nottingham Auditory Implant Programme. METHODS: The experiences and views of 25 families who used the equipment were obtained and analysed. The information informed subsequent advice, patient literature and professional training...
August 9, 2018: Cochlear Implants International
https://www.readbyqxmd.com/read/30227792/cochlear-implantation-in-children-with-congenital-long-qt-syndrome-introduction-of-an-evidence-based-pathway-of-care
#6
Victoria Scott-Warren, Anju Bendon, Iain A Bruce, Lise Henderson, Jacques Diacono
Congenital long QT syndrome (cLQTS) is an inherited cardiac ion channelopathy characterized by a long corrected-QT interval on the ECG, associated with a risk of syncope and sudden death as a result of arrhythmias. The archetypal arrhythmia associated with cLQTS is torsade de pointes which may degenerate into ventricular fibrillation. Children with Jervell and Lange-Neilsen syndrome have the combination of cLQTS and congenital sensorineural deafness and may present for cochlear implantation (CI). Sympathetic stimulation and administration of QT-prolonging medications may trigger arrhythmias in children with cLQTS and thus the perioperative period is a time of increased risk of adverse events, with deaths reported in the CI literature...
November 2018: Cochlear Implants International
https://www.readbyqxmd.com/read/30157714/occurrence-of-major-complications-after-cochlear-implant-surgery-in-ireland
#7
Hannes Petersen, Peter Walshe, Fergal Glynn, Rosemary McMahon, Conall Fitzgerald, Jyoti Thapa, Cristina Simoes-Franklin, Laura Viani
OBJECTIVES: Cochlear implantation (CI) is considered an effective and relatively safe procedure for patients with severe-profound hearing loss. However, severe complications are reported in several studies. The purpose of this study was to report the frequency and management of major complications following CI surgery at the National CI Programme (NCIP) in Ireland. METHODS: Major complications were defined according to the classification of Hansen et al. 2010. The medical records of 1017 patients undergoing CI between 1995 and 2016 were analyzed retrospectively for major complications...
November 2018: Cochlear Implants International
https://www.readbyqxmd.com/read/29976119/language-processing-fluency-and-verbal-working-memory-in-prelingually-deaf-long-term-cochlear-implant-users-a-pilot-study
#8
William G Kronenberger, Shirley C Henning, Allison M Ditmars, David B Pisoni
OBJECTIVE: Verbal working memory (WM) is more strongly correlated with spoken language skills in prelingually deaf, early-implanted cochlear implant (CI) users than in normal-hearing (NH) peers, suggesting that CI users access WM in order to support and compensate for their slower, more effortful spoken language processing. This pilot study tested the feasibility and validity of a dual-task method for establishing the causal role of WM in basic language processing (lexical access speed) in samples of 9 CI users (ages 8-26 years) and 9 NH peers...
November 2018: Cochlear Implants International
https://www.readbyqxmd.com/read/29909732/cognitive-outcomes-after-cochlear-implantation-in-older-adults-a-systematic-review
#9
Annes J Claes, Paul Van de Heyning, Annick Gilles, Vincent Van Rompaey, Griet Mertens
OBJECTIVES: To critically assess the current status of the literature on cognitive outcomes after cochlear implantation in older adults. METHODS: Studies were identified by searching MEDLINE (PubMed) and Cochrane Library, and checking reference lists of relevant articles. No restrictions were imposed regarding language, publication date, or publication status. Eligibility criteria were as follows: (1) the study sample included older adults aged 50 or over with severe to profound bilateral hearing loss, (2) the participants received a multi-electrode cochlear implant, and (3) a cognitive test was performed before and after implantation...
September 2018: Cochlear Implants International
https://www.readbyqxmd.com/read/29843587/changes-in-sound-source-localization-for-children-with-bilateral-severe-to-profound-hearing-loss-following-simultaneous-bilateral-cochlear-implantation
#10
Catherine F Killan, Sally Harman, Edward C Killan
BACKGROUND: Sound localization is a valuable skill that children can develop to some extent via bilateral cochlear implants (biCIs). However, little is known regarding the change that can be expected in sound-source localization accuracy (SLA) pre- and post-biCI for children with bilateral, severe-to-profound hearing impairment who spent their early years listening via bilateral hearing aids (biHAs). This study therefore aimed to prospectively assess SLA in a group of children before, and at one year after, receiving simultaneous biCIs...
September 2018: Cochlear Implants International
https://www.readbyqxmd.com/read/29772954/electric-acoustic-stimulation-suppresses-tinnitus-in-a-subject-with-high-frequency-single-sided-deafness
#11
Griet Mertens, Vincent Van Rompaey, Paul Van de Heyning
BACKGROUND: A suggested solution to suppress tinnitus is to restore the normal sensory input. This is based on the auditory deprivation hypothesis. It is known that hearing aids can provide sufficient activation of the auditory nervous system and reduce tinnitus in subjects with mild to moderate hearing loss and that cochlear implantation can reduce tinnitus in subjects with severe to profound hearing loss. This applies to subjects with single-sided deafness (SSD) or bilateral hearing loss...
September 2018: Cochlear Implants International
https://www.readbyqxmd.com/read/29658405/real-time-intracochlear-imaging-of-automated-cochlear-implant-insertions-in-whole-decalcified-cadaver-cochleas-using-ultrasound
#12
Thomas G Landry, Guy Earle, Jeremy A Brown, Manohar L Bance
OBJECTIVES: This study aimed to determine the feasibility of combining high-frequency ultrasound imaging, automated insertion, and force sensing to yield more information about cochlear implant insertion dynamics. METHODS: An apparatus was developed combining these aspects along with software to control implant and imaging probe positions. Decalcified unfixed human cochleas were implanted at various speeds, insertion sites, and implant models while imaging near the implant tip throughout insertion and recording force data from the cochlea mounting stage...
September 2018: Cochlear Implants International
https://www.readbyqxmd.com/read/29631499/cochlear-helix-and-duct-length-identification-evaluation-of-different-curve-fitting-techniques
#13
Daniel Schurzig, Max Eike Timm, G Jakob Lexow, Omid Majdani, Thomas Lenarz, Thomas S Rau
OBJECTIVE: Within the field of cochlear implantation (CIs), the role of utilizing patient-specific cochlear anatomy for choosing the optimal implant electrode is becoming increasingly important. Unfortunately, performing detailed anatomical measurements of a cochlea using clinical imaging data is rather time consuming and hence difficult to implement into the clinical routine. In order to accelerate clinical cochlear anatomy evaluations, previously developed mathematical models can be adjusted to the patient-specific anatomy by measuring just a few overall cochlear dimensions...
September 2018: Cochlear Implants International
https://www.readbyqxmd.com/read/30010498/evaluating-inter-aural-hearing-preservation-in-bilateral-paediatric-cochlear-implantation
#14
Huw A S Jones, Harry R F Powell, Andy Hall, Jeremy Lavy, Azhar Shaida, Shakeel Saeed, Sherif Khalil
OBJECTIVE: To examine inter-aural hearing preservation results in children undergoing simultaneous bilateral cochlear implantation (CI). METHODS: Retrospective case review in tertiary referral centre. All children undergoing simultaneous bilateral CI between January 2013 and June 2014 (18 months). Patients eligible for inclusion in the study had pre-operative hearing thresholds of <90 dB at 250 Hz and ≥100 dB at 500 Hz. Patients with anatomical cochlear anomalies or missing data were excluded...
July 16, 2018: Cochlear Implants International
https://www.readbyqxmd.com/read/29969078/another-evidence-for-pressure-transfer-mechanism-in-incomplete-partition-two-anomaly-via-enlarged-vestibular-aqueduct
#15
Levent Sennaroglu
A female patient with unilateral enlarged vestibular aqueduct (EVA) demonstrated scala vestibuli dilatation on that side while on the contralateral side both vestibular aqueduct and scala vestibuli were normal. This important radiological finding demonstrates that modiolar defects (hence 'cystic apex') observed in Incomplete partition-II is due to pressure transfer via EVA during embryological development. Therefore, it supports the previous histopathological ideas radiologically. Depending on the patency of EVA, variety of modiolar defects may arise...
July 3, 2018: Cochlear Implants International
https://www.readbyqxmd.com/read/29577849/facial-nerve-stimulation-after-cochlear-implantation-our-experience-in-448-adult-patients
#16
Joana Sanches Pires, Ana Sofia Melo, Ricardo Caiado, Jorge Humberto Martins, João Elói Moura, Luís Filipe Silva
Facial nerve stimulation (FNS) after cochlear implant activation is a well-known side effect, with an incidence rate raging between 1% and 14.9%. Some causes of deafness have been associated with a higher incidence of this entity, however, there is still no consensus regarding its pathophysiological mechanisms. Although FNS can be solved with changes in speech processor programming, in some cases this can lead to a decrease in performance. The aim of this work was to review the epidemiologic, clinical aspects, and performance results in a group of FNS after cochlear implantation...
July 2018: Cochlear Implants International
https://www.readbyqxmd.com/read/29577839/single-sided-deaf-tactical-unit-officer-treated-with-cochlear-implantation
#17
Jean-Michel Bourque, Nicolas Rouleau, Mathieu Côté, Daniel Philippon, Richard Bussières
OBJECTIVES: To demonstrate the efficacy of cochlear implantation for management of a severe single-sided deaf tactical unit officer. Showing that hearing improvement provided by cochlear implantation was sufficient for him to return to work as a police tactical officer. METHODS: Case report. RESULTS: A 43 years-old man working as a tactical unit officer suffered from a work-related severe single-sided hearing loss. He tried unsuccessfully many types of hearing aids including a contralateral routing of sound (CROS) system and a bone conduction hearing aid with a headband...
July 2018: Cochlear Implants International
https://www.readbyqxmd.com/read/29566583/benefits-of-upgrading-to-the-nucleus-%C3%A2-6-sound-processor-for-a-wider-clinical-population
#18
Michelle J Todorov, Karyn L Galvin
OBJECTIVES: To determine whether a large clinical group of cochlear implant (CI) recipients demonstrated a difference in sentence recognition in noise when using their pre-upgrade sound processor compared to when using the Nucleus 6 processor, and to examine the impact of the following factors: implant type, sound processor type, age, or onset of hearing loss. METHODS: A file review of 154 CI recipients (aged 7-92 years old) who requested an upgrade to the Nucleus 6 sound processor at the Cochlear Care Centre Melbourne was conducted...
July 2018: Cochlear Implants International
https://www.readbyqxmd.com/read/29564963/development-and-validation-of-the-nottingham-auditory-milestones-names-profile-for-deaf-children-under-2-years-old-using-cochlear-implants
#19
Gill Datta, Pádraig T Kitterick, Jayne Ramirez-Inscoe
OBJECTIVES: Clinicians face considerable challenges in setting appropriate auditory goals for babies and young children who receive cochlear implants. This paper describes the rationale, organization, implementation, and validation of the Nottingham Auditory Milestones profile that was developed to address these challenges. METHODS: The use of the profile has been fully integrated into the postoperative pathway at the Nottingham Auditory Implant Programme since 2009...
July 2018: Cochlear Implants International
https://www.readbyqxmd.com/read/29508662/a-potential-neurophysiological-correlate-of-electric-acoustic-pitch-matching-in-adult-cochlear-implant-users-pilot-data
#20
Chin-Tuan Tan, Brett A Martin, Mario A Svirsky
The overall goal of this study was to identify an objective physiological correlate of electric-acoustic pitch matching in unilaterally implanted cochlear implant (CI) participants with residual hearing in the non-implanted ear. Electrical and acoustic stimuli were presented in a continuously alternating fashion across ears. The acoustic stimulus and the electrical stimulus were either matched or mismatched in pitch. Auditory evoked potentials were obtained from nine CI users. Results indicated that N1 latency was stimulus-dependent, decreasing when the acoustic frequency of the tone presented to the non-implanted ear was increased...
July 2018: Cochlear Implants International
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