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Speech development in children after cochlear implantation.

Mehdi Bakhshaee1, Mohammad Mahdi Ghasemi, Mohammad Taghi Shakeri

  • 1Department of Otorhinolaryngology, Head and Neck Surgery, Imam Reza Educational Hospital, Mashad University of Medical Sciences, Mashad, Iran. m-bakhshaee@mums.ac.ir

European Archives of Oto-Rhino-Laryngology : Official Journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : Affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery
|July 20, 2007
PubMed
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Young deaf children show significant speech intelligibility gains after cochlear implantation (CI). With auditory verbal therapy, most achieve fully intelligible speech within five years, demonstrating continuous improvement.

Area of Science:

  • Pediatric audiology
  • Speech-language pathology
  • Otolaryngology

Background:

  • Congenital and prelingual deafness significantly impacts speech development.
  • Cochlear implantation (CI) offers a potential solution for profound hearing loss.
  • Early intervention with auditory verbal therapy (AVT) is crucial for language acquisition.

Purpose of the Study:

  • To evaluate the long-term speech intelligibility in prelingually deaf children post-CI.
  • To track speech development trajectories over five years following cochlear implantation.
  • To assess the effectiveness of auditory verbal therapy integrated with CI.

Main Methods:

  • Prospective study of 47 prelingually deaf children undergoing cochlear implantation.
  • Speech intelligibility was assessed annually for five years using a standardized rating scale.

Related Experiment Videos

  • Children received cochlear implants prior to initiating auditory verbal therapy.

    • Main Results:

    • Speech intelligibility ratings significantly improved annually for the first three years (P < 0.05).
    • After two years, children achieved category 3 intelligibility (understandable with concentration/lip-reading).
    • By years 4 and 5, 71.5% and 78% of children, respectively, had category 5 intelligibility (intelligible to all listeners).

    Conclusions:

    • Prelingually deaf children demonstrate progressive and significant speech intelligibility development after cochlear implantation.
    • Speech intelligibility continues to improve beyond five years post-implantation, indicating no plateau.
    • Cochlear implantation combined with auditory verbal therapy is effective in developing intelligible speech in deaf children.