PubMed Journals Articles About "Early Cochlear Implant Device Activation Safe Sound Processors" RSS

05:17 EST 20th January 2020 | BioPortfolio

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Showing "Early Cochlear Implant Device Activation Safe Sound Processors" PubMed Articles 1–25 of 22,000+

Is Early Cochlear Implant Device Activation Safe for All on-the-Ear and off-the-Ear Sound Processors?

Cochlear implantation (CI) is an effective treatment option for patients with severe-to-profound hearing loss. When CI first started, it was recommended to wait until at least 4 weeks after the CI surgery for the initial activation because of possible complications. Advances in the surgical techniques and experiences in fitting have made initial activation possible within 24 h.

Cochlear Implant Data Logs Predict Children's Receptive Vocabulary.

The data logs of Cochlear Nucleus cochlear implant (CI) sound processors show large interindividual variation in children's daily CI use and auditory environments. This study explored whether these differences are associated with differences in the receptive vocabulary of young implanted children.

Cochlear Place of Stimulation Is One Determinant of Cochlear Implant Sound Quality.

Our aim was to determine the effect of acute changes in cochlear place of stimulation on cochlear implant (CI) sound quality.

Cost-effectiveness analysis of bilateral cochlear implants for children with severe-to-profound sensorineural hearing loss in both ears in Singapore.

A cochlear implant is a small electronic device that provides a sense of sound for the user, which can be used unilaterally or bilaterally. Although there is advocacy for the benefits of binaural hearing, the high cost of cochlear implant raises the question of whether its additional benefits over the use of an acoustic hearing aid in the contralateral ear outweigh its costs. This cost-effectiveness analysis aimed to separately assess the cost-effectiveness of simultaneous and sequential bilateral cochlear ...

Critical Factors for Binaural Hearing in Children with Bilateral Sequential Cochlear Implantation: First Implant Performance and Inter-Implant Interval.

This study evaluated the influence of the performance of the first cochlear implant (CI-1) on the second implant (CI-2) and the significance of inter-implant intervals in children with sequential cochlear implantation.

Surgical approach for complete cochlear coverage in EAS-patients after residual hearing loss.

In cases with residual-hearing (RH) loss after cochlear implantation, a safe method is needed to provide full spectral resolution and as much auditory information as possible without implant replacement. Aim of this study was to prove the feasibility of accessing a partially inserted cochlear-implant-electrode for complete insertion to its maximum length through the external ear canal using a transcanal approach.

Restoration of cortical symmetry and binaural function: Cortical auditory evoked responses in adult cochlear implant users with single sided deafness.

Cochlear implantation for single-sided deafness (SSD) is the only treatment option with the potential to restore binaural hearing cues. Significant binaural benefit has been measured in adults by speech in noise and localisation tests, who receive a cochlear implant for SSD, however, little is known on the cortical changes that help provide this benefit. In the present study, detection of sound in the auditory cortex, speech testing and localisation was used to investigate the ability of a cochlear implant ...

Differences in the impedance of cochlear implant devices within 24 hours of their implantation.

Cochlear implantation is a surgical procedure, which is performed on severely hearing-impaired patients. Impedance field telemetry is commonly used to determine the integrity of the cochlear implant device during and after surgery. At the Department of Otolaryngology, Cheng Hsin General Hospital (Taipei, Taiwan), the cochlear implant devices are switched on within 24 hours of their implantation. In the present study, the impedance changes of Advanced Bionics™ cochlear implant devices were compared with pr...

Processing of interaural time differences in normal-hearing subjects and cochlear implant users with FSP and HDCIS coding strategy.

Sound localization is necessary for social interaction and remains challenging for bilateral cochlear implant (CI) users. This study investigated the influence of fine structure processing (FSP) coding strategies on temporal accuracy and source localization. The ability to discriminate between different interaural time differences (ITD) was measured objectively and compared.

Revision cochlear implantation: The Irish experience.

To report a long-term experience on revision cochlear implantation (RCI) in a single institution, categorize their indications and to identify predictive parameters of implant failure. A retrospective study was conducted on a prospective database of a national cochlear implant unit. Patients requiring RCI between January 1995 and June 2016 were identified and stratified into adult and paediatric group. Medical records, investigation reports and device analysis reports were reviewed and analysed. A total o...

Looking for Mickey Mouse™ But Finding a Munchkin: The Perceptual Effects of Frequency Upshifts for Single-Sided Deaf, Cochlear Implant Patients.

Purpose Our aim was to make audible for normal-hearing listeners the Mickey Mouse™ sound quality of cochlear implants (CIs) often found following device activation. Method The listeners were 3 single-sided deaf patients fit with a CI and who had 6 months or less of CI experience. Computed tomography imaging established the location of each electrode contact in the cochlea and allowed an estimate of the place frequency of the tissue nearest each electrode. For the most apical electrodes, this estimate rang...

Long-term audiologic outcomes after cochlear implantation for single-sided deafness.

To evaluate the long-term audiometric outcomes, sound localization abilities, binaural benefits, and tinnitus assessment of subjects with cochlear implant (CI) after a diagnosis of unilateral severe-to-profound hearing loss.

Perceptual organization of sequential stimuli in cochlear implant listeners: A temporal processing approach.

Cochlear Implant (CI) users often suffer difficulties in perceiving speech in noisy environments that could be attributed to reduced Auditory Stream Segregation (ASS) ability. ASS is the process used to separate a complex sound into different perceptual streams. The evidence that CI listeners routinely experience stream segregation skill is limited and equivocal. The present study was aimed to investigate the effects of temporal cues on ASS performance in postlingually deaf listeners with CI.

Feasibility of early activation after cochlear implantation.

The purpose of the study is to investigate feasibility of early activation after cochlear implantation by evaluating long term impedance change and speech perception.

Application of Digital Remote Wireless Microphone Technology in Single-Sided Deaf Cochlear Implant Recipients.

Previous research showed benefits of remote wireless technology in bilaterally moderate-to-severe hearing-impaired participants provided with hearing aid(s), cochlear implant(s) (CIs), or bimodal devices as well as in single-sided deaf (SSD) cochlear implant recipients (with CI from Cochlear™) and normal-hearing (NH) participants.

The Long-Term Efficacy of Cochlear Implantation for Hearing Loss in Muckel-Wells Syndrome.

Muckle-Wells syndrome (MWS), a subclass of cryopyrin-associated periodic syndrome (CAPS), sometimes includes complications of bilateral progressive sensorineural hearing loss. A 48-year-old woman had been diagnosed with pediatric rheumatic arthritis at aged 6 years; however, systematic therapy with prednisolone and methotrexate showed limited efficacy for her general fatigue and arthritic pain, and it never improved the hearing level. She underwent a cochlear implant surgery for progressive profound bilater...

Auditory cortical plasticity in cochlear implant users.

Cochlear implants are one of the most successful neuroprosthetic devices that have been developed to date. Profoundly deaf patients can achieve speech perception after complete loss of sensory input. Despite the improvements many patients experience, there is still a large degree of outcome variability. It has been proposed that central plasticity may be a major factor in the different levels of benefit that patients experience. However, the neural mechanisms of how plasticity impacts cochlear implant learn...

Dimensions of artefacts caused by cochlear and auditory brainstem implants in magnetic resonance imaging.

The aim of the study was to investigate the extent of MRI artefacts due to the magnet of selected auditory implants. Artefacts of the Synchrony cochlear implant at 1.5 T as well as at 3 T MRI devices were examined in cadavers and compared to the artefacts in MRI scans at 1.5 T of 17 patients implanted with CI ( = 12) and auditory brainstem implants (ABI) ( = 5). None of the scanned implants showed any failure after MRI. After removal of the magnet, only a portion of the images in the direct ...

Alteration of the relative vibration of the round window membrane after implantation of a direct acoustic cochlear implant.

Subjects implanted with a Direct Acoustic Cochlear Implant (DACI) show improvements in their bone conduction (BC) thresholds after surgery. We hypothesised that a new pathway for BC sound is created via the DACI. The aim of this study was to investigate the contribution of this pathway to the cochlear response via measurements of the promontory and round window membrane (RWM) velocities while stimulating with a conventional bone conductor. This study was a cadaver head study with a repeated measures study d...

Educational Status in Bilateral Prelingual Deaf Children with Cochlear Implantation.

This study was undertaken to investigate the educational status in bilateral prelingual deaf children with a cochlear implant (CI), also known as early cochlear implantees (CIs). Type of schooling and enrollment rate of tertiary education were analyzed as primary results.

Improving Cochlear Implant Performance in the Wind Through Spectral Masking Release: A Multi-microphone and Multichannel Strategy.

Adopting the omnidirectional microphone (OMNI) mode and reducing low-frequency gain are the two most commonly used wind noise reduction strategies in hearing devices. The objective of this study was to compare the effectiveness of these two strategies on cochlear implant users' speech-understanding abilities and perceived sound quality in wind noise. We also examined the effectiveness of a new strategy that adopts the microphone mode with lower wind noise level in each frequency channel.

Validating a New Tablet-Based Tool in the Determination of Cochlear Implant Angular Insertion Depth.

The objective of this study is to determine the reliability of a new tablet-based software that utilizes postoperative computed tomography to determine angular insertion depth (AID), cochlear duct length (CDL), and the cochlear place frequency of individual electrodes in cochlear implant recipients.

Immediate activation after cochlear implantation: Preliminary Study.

To assess the feasibility of immediate activation of cochlear implants.

Monitoring Cochlear Nerve Integrity During Vestibular Schwannoma Microsurgery in Real-Time Using Cochlear Implant Evoked Auditory Brainstem Response and Streaming Neural Response Imaging.

Intraoperative far-field auditory brainstem response (ABR) and direct cochlear nerve action potential monitoring using neural response imaging (NRI) are techniques for monitoring the cochlear nerve during vestibular schwannoma (VS) surgery. A new paradigm has developed where the cochlear nerve is anatomically preserved during tumor removal to facilitate cochlear implantation in select circumstances. This report describes the use of an unmodified commercial cochlear implant (CI) to elicit electrically-evoked...

How Does Quality of Life Relate to Auditory Abilities? A Subitem Analysis of the Nijmegen Cochlear Implant Questionnaire.

Objective speech recognition tasks are widely used to measure performance of adult cochlear implant (CI) users; however, the relationship of these measures with patient-reported quality of life (QOL) remains unclear. A comprehensive QOL measure, the Nijmegen Cochlear Implant Questionnaire (NCIQ), has historically shown a weak association with speech recognition performance, but closer examination may indicate stronger relations between QOL and objective auditory performance, particularly when examining a br...

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