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Related Experiment Video

Updated: Jun 21, 2026

Performing Repeated Intraoperative Impedance Telemetry Measurements during Cochlear Implantation
06:54

Performing Repeated Intraoperative Impedance Telemetry Measurements during Cochlear Implantation

Published on: August 4, 2023

Bilateral cochlear implantation: current concepts.

Rose J Eapen1, Craig A Buchman

  • 1Department of Otolaryngology-Head & Neck Surgery, University of North Carolina at Chapel Hill, North Carolina 27599, USA.

Current Opinion in Otolaryngology & Head and Neck Surgery
|July 17, 2009
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

The Cochlea01:13

The Cochlea

The cochlea is a coiled structure in the inner ear that contains hair cells—the sensory receptors of the auditory system. Sound waves are transmitted to the cochlea by small bones attached to the eardrum called the ossicles, which vibrate the oval window that leads to the inner ear. This causes fluid in the chambers of the cochlea to move, vibrating the basilar membrane.

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Bilateral cochlear implantation significantly enhances speech perception in quiet and noisy environments, improving sound localization and overall auditory experience for individuals with hearing loss.

Area of Science:

  • Audiology
  • Neurosurgery
  • Speech-Language Pathology

Background:

  • Cochlear implantation has advanced, with unilateral devices enabling open-set word recognition.
  • Despite unilateral benefits, challenges persist in noisy environments.
  • Bilateral cochlear implantation offers enhanced auditory input from both ears.

Purpose of the Study:

  • To review recent literature on bilateral cochlear implantation (BCI) indications, outcomes, and long-term benefits.
  • To assess BCI's impact on speech perception in quiet and noise.
  • To evaluate BCI's effect on sound localization and binaural hearing.

Main Methods:

  • Systematic literature review of recent studies on bilateral cochlear implantation.
  • Analysis of speech perception tests in quiet and noisy conditions.

Related Experiment Videos

Last Updated: Jun 21, 2026

Performing Repeated Intraoperative Impedance Telemetry Measurements during Cochlear Implantation
06:54

Performing Repeated Intraoperative Impedance Telemetry Measurements during Cochlear Implantation

Published on: August 4, 2023

  • Evaluation of sound localization capabilities and subjective patient outcomes.

    • Main Results:

    • BCI demonstrates improved speech perception in quiet and complex listening environments.
    • Enhanced sound localization is linked to interaural level differences.
    • Evidence suggests neural integration and binaural benefits like squelch effect with BCI.

    Conclusions:

    • The literature strongly supports the binaural benefits of BCI.
    • BCI leads to improved speech perception, sound localization, and subjective auditory experiences.
    • Recent findings indicate potential neural adaptation over time with BCI.