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Cochlear Implants International

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https://www.readbyqxmd.com/read/29658405/real-time-intracochlear-imaging-of-automated-cochlear-implant-insertions-in-whole-decalcified-cadaver-cochleas-using-ultrasound
#1
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...
April 16, 2018: Cochlear Implants International
https://www.readbyqxmd.com/read/29631499/cochlear-helix-and-duct-length-identification-evaluation-of-different-curve-fitting-techniques
#2
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...
April 9, 2018: Cochlear Implants International
https://www.readbyqxmd.com/read/29577839/single-sided-deaf-tactical-unit-officer-treated-with-cochlear-implantation
#3
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...
March 26, 2018: Cochlear Implants International
https://www.readbyqxmd.com/read/29577849/facial-nerve-stimulation-after-cochlear-implantation-our-experience-in-448-adult-patients
#4
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...
March 25, 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
#5
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...
March 22, 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
#6
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...
March 22, 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
#7
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...
March 6, 2018: Cochlear Implants International
https://www.readbyqxmd.com/read/29455623/rare-case-of-bilateral-aural-atresia-and-cochlear-dysplasia-when-cochlear-implantation-is-not-the-answer
#8
Maja Svrakic
OBJECTIVE AND IMPORTANCE: Reports of patients with concurrent middle and inner ear anomalies are rare. These patients present a surgical challenge for cochlear implantation. The surgical risk must be weighed against the predicted benefit of the patient's hearing outcome and subsequent development of speech and language as well as their quality of life. CLINICAL PRESENTATION: Thirteen-year-old boy presented to the Otology clinic for auditory rehabilitation options...
February 17, 2018: Cochlear Implants International
https://www.readbyqxmd.com/read/29457564/investigating-speech-recognition-and-listening-effort-with-different-device-configurations-in-adult-cochlear-implant-users
#9
Douglas P Sladen, Yingjiu Nie, Katelyn Berg
OBJECTIVES: The purpose of this study was to investigate speech recognition in noise and listening effort among a group of adults with cochlear implants (CIs). Two main research questions were addressed. First, what are the effects of omni versus directional microphone configuration on speech recognition and listening effort for noisy conditions? Second, what is the effect of unilateral versus bimodal or bilateral CI listening on speech recognition and listening effort in noisy conditions? DESIGN: Sixteen adults (mean age 58 years) with CIs participated...
May 2018: Cochlear Implants International
https://www.readbyqxmd.com/read/29457563/novel-use-of-the-cochlear-%C3%A2-hybrid-ci24reh-cochlear-implant
#10
Yahya Atiya, Mohamed Razwi Ahmed, Dani Schlesinger-Michelow
Cochlear implantation is becoming more widespread. From its early days to date, huge strides have been made in the technology and surgical technique. However, one challenge remains: implanting malformed or abnormal cochleae. Even more challenging is a cochlea that appears normal at first glance, but is not. We present a case of a child with chondrodysplasia punctata, who had apparently morphologically normal inner ears, but with one major obstacle: the cochlea was smaller than normal in all dimensions. To the best of our knowledge, this is the first case described, and the solution is a novel one as well...
May 2018: Cochlear Implants International
https://www.readbyqxmd.com/read/29457562/quality-of-life-outcomes-in-cochlear-implantation-of-children-with-profound-and-multiple-learning-disability
#11
Richard Benjamin Speaker, Jennifer Roberston, Cristina Simoes-Franklin, Fergal Glynn, Peter Walshe, Laura Viani
This study was performed to investigate the effect of cochlear implantation on the Quality of Life (QoL) of children with profound and multiple learning disability (PMLD). This cohort of children has been viewed historically as poor candidates for cochlear implantation as they generally have poor speech and hearing outcomes. The Irish National Cochlear Implant Program's prospectively maintained database was examined for all children implanted from July 1996 to July 2015. All charts of the 381 children implanted during this time were reviewed retrospectively; 16 children met criteria for being PMLD...
May 2018: Cochlear Implants International
https://www.readbyqxmd.com/read/29347892/pilot-study-on-the-use-of-data-mining-to-identify-cochlear-implant-candidates
#12
Jedidiah J Grisel, Erin Schafer, Anne Lam, Terry Griffin
OBJECTIVES: The goal of this pilot study was to determine the clinical utility of data-mining software that screens for cochlear implant (CI) candidacy. METHODS: The Auditory Implant Initiative developed a software module that screens for CI candidates via integration with a software system (Noah 4) that serves as a depository for hearing test data. To identify candidates, patient audiograms from one practice were exported into the screening module. Candidates were tracked to determine if any eventually underwent implantation...
May 2018: Cochlear Implants International
https://www.readbyqxmd.com/read/29299970/inconsistent-device-use-in-pediatric-cochlear-implant-users-prevalence-and-risk-factors
#13
Kathryn B Wiseman, Andrea D Warner-Czyz
OBJECTIVES: Cochlear implants (CIs) afford an opportunity for children with a significant hearing loss to access spoken language through auditory input, but challenges post-implantation could impede success. Inconsistent device use occurs when a child wears their device less than full-time (<8 hours per day). Previous studies may underestimate the prevalence of inconsistent device use in pediatric CI users due to methodological issues (subjective parent report vs. objective measures)...
May 2018: Cochlear Implants International
https://www.readbyqxmd.com/read/29291688/comparing-esrt-and-ecap-measurements-in-pediatric-med-el-cochlear-implant-users
#14
Julie Kosaner, Philipp Spitzer, Svetlana Bayguzina, Muammer Gultekin, Laurie Arum Behar
INTRODUCTION: Electrically evoked compound action potentials (eCAP) and electrically evoked stapedius reflexes are the most frequently used objective measurements for programming a cochlear implant (CI) audio processor. Objective methods are particularly beneficial for children and CI users that encounter difficulties in providing feedback. In this study, we compared the threshold and the slope of the eCAP amplitude growth function with the electrically evoked stapedius reflex threshold (eSRT) in pediatric CI users...
May 2018: Cochlear Implants International
https://www.readbyqxmd.com/read/29188758/utility-of-intraoperative-computed-tomography-for-cochlear-implantation-in-patients-with-difficult-anatomy
#15
Christine S Kim, Alice Z Maxfield, David Foyt, Robert J Rapoport
OBJECTIVE AND IMPORTANCE: To describe cases that illustrate the utility of intraoperative computed tomography (CT) in cochlear implantation of patients with difficult temporal bone anatomy. CLINICAL PRESENTATION: A 2-year-old male with congenital X-linked stapes gusher syndrome and a 2-year-old female with enlarged vestibular aqueduct underwent successful cochlear implantation with the help of intraoperative CT. In the latter case, the initial intraoperative C-arm fluoroscopy suggested malposition of the electrode, however, was not able to provide details for adjustments...
May 2018: Cochlear Implants International
https://www.readbyqxmd.com/read/29291687/perceived-improvements-and-challenges-following-sequential-bilateral-cochlear-implantation-in-children-and-adults
#16
Mary Pat Moeller, Lisa J Stille, Michelle L Hughes, Rodney P Lusk
OBJECTIVE: Semi-structured interviews were conducted with sequentially implanted bilateral cochlear-implant (biCI) recipients to examine functional aspects of communication that are affected by listening with one versus two CIs. DESIGN: Participants were 15 adult biCI recipients and parents of 30 children (categorized into three groups by age) with biCIs. All CI users had sequential placement of biCIs with at least six months' experience with the first CI before activation of the second device, and at least three months' experience with both CIs prior to the interview...
March 2018: Cochlear Implants International
https://www.readbyqxmd.com/read/29214896/outcome-evaluation-on-cochlear-implant-users-with-residual-hearing
#17
Nicole Neben, Andreas Buechner, Mark Schuessler, Thomas Lenarz
OBJECTIVES: The performance outcome with Freedom™ Hybrid™ versus the CP900 series sound processor with Hybrid Hearing was investigated. In addition, a preliminary evaluation was conducted to consider the feasibility of upgrading experienced electric-only cochlear implant (CI) users who had substantial residual hearing to Hybrid Hearing. METHODS: This study was a single-centre prospective, non-inferiority design with repeated measures conducted at Hannover Medical School (MHH)...
March 2018: Cochlear Implants International
https://www.readbyqxmd.com/read/29212424/surgical-complications-of-cochlear-implantation-in-a-tertiary-university-hospital
#18
Al Hussein Awad, Usama M Rashad, Nihal Gamal, Mostafa A Youssif
INTRODUCTION: Cochlear implantation remains a popular and effective therapy for patients with sensorineural hearing loss that not get benefit from conventional hearing aids Objective: To analyze the surgical complications obtained in patients that underwent cochlear implantation in a tertiary university hospital. MATERIALS AND METHODS: Retrospective analysis of the medical files of cochlear implant patients who underwent surgery at our institution between October 2014 and July 2016...
March 2018: Cochlear Implants International
https://www.readbyqxmd.com/read/29188760/surgical-complications-and-their-management-in-cochlear-implantees-less-than-5-years-of-age-the-kemh-pune-experience
#19
Sayali Shiras, Neelam Vaid, Sanjay Vaid, Ajay Kothadiya
OBJECTIVE: To evaluate the incidence of surgical complications of cochlear implantation and their management at K.E.M. hospital Pune. METHODS: It was a retrospective and prospective observational study conducted from February 2006 to December 2015 in the paediatric age group of 12 months to 5 years (213 cases). The complications were divided into major and minor groups based on the classification proposed by Cohen and Hoffman. RESULTS: The mean age of implantation was 3...
March 2018: Cochlear Implants International
https://www.readbyqxmd.com/read/29161976/a-new-approach-for-the-determination-of-ecap-thresholds
#20
Sebastian Hoth, Philipp Spitzer, Mark Praetorius
BACKGROUND: Electrically evoked compound action potentials (ECAPs) of the auditory nerve are routinely recorded for testing the cochlear implant integrity and its functional connection to the auditory system. The response thresholds derived from ECAP recordings are widely used as a helpful guide in the fitting of the dynamic range of electric stimulation, although they may not always predict the behavioral thresholds of individuals well. Conventionally, this threshold is based on the identification of a minimum N peak and maximum P peak and linear extrapolation of the resulting amplitude growth function (AGF)...
March 2018: Cochlear Implants International
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