Amazing progress has been made in providing useful hearing to hearing-impaired individuals using cochlear implants, but challenges remain. One such challenge is understanding the effects of partial degeneration of the auditory nerve, the target of cochlear implant stimulation. Here we review studies from our human and animal laboratories aimed at characterizing the health of the implanted cochlea and the auditory nerve. We use the data on cochlear and neural health to guide rehabilitation strategies. The data also motivate the development of tissue-engineering procedures to preserve or build a healthy cochlea and improve performance obtained by cochlear implant recipients or eventually replace the need for a cochlear implant. This article is part of a Special Issue entitled
Download full-text PDF |
Source |
---|---|
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4377117 | PMC |
http://dx.doi.org/10.1016/j.heares.2014.09.009 | DOI Listing |
Int J Numer Method Biomed Eng
January 2025
Bioengineering, Department of Electrical, Electronic and Computer Engineering, University of Pretoria, Gauteng, South Africa.
The imaging of the live cochlea is a challenging task. Regardless of the quality of images obtained from modern clinical imaging techniques, the internal structures of the cochlea mainly remain obscured. Electrical impedance tomography (EIT) is a safe, low-cost alternative medical imaging technique with applications in various clinical scenarios.
View Article and Find Full Text PDFLaryngoscope
January 2025
Department of Otolaryngology - Head and Neck Surgery, University of Washington, Seattle, Washington, USA.
Objective: To provide evidence to use an extended frequency pure tone average to screen for cochlear implant evaluation candidates as recommended by the American Cochlear Implant Alliance. Additionally, to determine whether traditional low frequency, high or low frequency, high frequency, or extended frequency pure tone average most accurately predicts cochlear implant candidates based on speech perception scores from aided AzBio sentence testing or aided consonant-nucleus-consonant (CNC) testing.
Method: Adults from a tertiary care center who completed aided sentence testing during cochlear implant evaluation between 2014 and 2024 were assessed.
Acta Otolaryngol
January 2025
Department of Audiology, Hacettepe University, Ankara, Turkey.
Background: The intraoperative measurements are essential steps in cochlear implant (CI) surgery for confirming correct electrode placement.
Objectives: To examine the intraoperative impedance and electrically evoked action potential (ECAP) measurement results of cochlear implant (CI) users with normal cochlear anatomy (NCA) and to compare them with CI users with inner ear malformations (IEM).
Material And Methods: This retrospective study included intraoperative data of 300 ears from 258 individuals using Medel and Cochlear (Nucleus) CI devices.
Heliyon
January 2025
Information Management Office, Taipei Veterans General Hospital, Taipei, 112, Taiwan.
Background: This investigation quantifies the mean and median hearing thresholds and assesses the prevalence of age-related hearing loss within the senior population of Taipei.
Methods: In a substantive geriatric assessment supported by government initiative, 1696 individuals from a community hospital partook in this cross-sectional study (2016-2018). Detailed audiometric evaluations logged pure-tone thresholds across critical frequencies (0.
Int J Audiol
January 2025
Department of Otorhinolaryngology and Head & Neck Surgery, Leiden University Medical Center, Leiden, Netherlands.
Objective: Measuring listening effort using pupillometry is challenging in cochlear implant (CI) users. We assess three validated speech tests (Matrix, LIST, and DIN) to identify the optimal speech material for measuring peak-pupil-dilation (PPD) in CI users as a function of signal-to-noise ratio (SNR).
Design: Speech tests were administered in quiet and two noisy conditions, namely at the speech recognition threshold (0 dB re SRT), i.
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!