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Related Experiment Video

Updated: Jun 27, 2026

Performing Intracochlear Electrocochleography During Cochlear Implantation
09:10

Performing Intracochlear Electrocochleography During Cochlear Implantation

Published on: March 8, 2022

What can be expected from a late cochlear implantation?

Maria-Izabel Kos1, Marielle Deriaz, Jean-Philippe Guyot

  • 1Geneva Cochlear Implant Centre, Department of Oto-Rhino-Laryngology, Head and Neck Surgery, Geneva University Hospitals, Switzerland. izabel.kos@hcuge.ch

International Journal of Pediatric Otorhinolaryngology
|December 5, 2008
PubMed
Summary

Late cochlear implantation can enable pre-lingually deaf individuals to transition to oral communication. Prior exposure to oral language structures, like cued speech, positively impacts this conversion.

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Area of Science:

  • Audiology
  • Speech-Language Pathology
  • Neuroscience

Background:

  • Pre-lingual deafness presents significant communication challenges.
  • Late cochlear implantation (CI) in individuals with profound deafness is increasingly explored.
  • Transitioning from visual to oral communication modes is a key rehabilitation goal.

Purpose of the Study:

  • To determine if late cochlear implantation facilitates a complete shift to oral communication in pre-lingually deaf individuals.
  • To compare the effectiveness of late CI for oral communication conversion based on prior communication modality (cued speech vs. sign language).

Main Methods:

  • A cohort of 13 pre-lingually profoundly deaf patients (ages 8-22 years) received cochlear implants.
  • Participants were categorized based on pre-implantation communication: 6 used cued speech, 7 used sign language.

Related Experiment Videos

Last Updated: Jun 27, 2026

Performing Intracochlear Electrocochleography During Cochlear Implantation
09:10

Performing Intracochlear Electrocochleography During Cochlear Implantation

Published on: March 8, 2022

  • Outcomes assessed included hearing thresholds, phoneme identification, auditory performance, speech intelligibility, and communication mode changes post-implantation.

    • Main Results:

    • Former cued speech users showed significantly better phoneme identification and auditory performance post-CI compared to sign language users.
    • After a mean of 4.5 years of CI use, 4/6 cued speech users adopted exclusive oral communication.
    • Only 1/7 former sign language users transitioned to exclusive oral communication.

    Conclusions:

    • Late cochlear implantation can enable pre-lingually deaf individuals to fully adopt oral communication.
    • Pre-existing knowledge of oral language structure (e.g., via cued speech) positively influences outcomes of delayed CI.
    • Recommends incorporating cued speech alongside late CI to enhance oral communication conversion.