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Multichannel (Ineraid) cochlear implant update

J L Parkin1, L J Randolph, B D Parkin

  • 1University of Utah School of Medicine, Department of Surgery, Salt Lake City 84132.

The Laryngoscope
|August 1, 1993
PubMed
Summary
This summary is machine-generated.

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The Ineraid multichannel cochlear implant improved hearing for profoundly deaf patients, enhancing auditory performance and speech understanding. This study highlights the device

Area of Science:

  • Otorhinolaryngology
  • Biomedical Engineering
  • Neuroscience

Background:

  • Profound deafness presents significant communication challenges.
  • Cochlear implantation offers a potential solution for auditory rehabilitation.

Purpose of the Study:

  • To evaluate the auditory outcomes of the Ineraid multichannel cochlear implant in profoundly deaf patients.
  • To assess the device's tolerability and associated rehabilitation strategies.

Main Methods:

  • A cohort of 49 profoundly deaf patients received the Ineraid implant between 1984 and 1991.
  • Auditory performance was measured using pure-tone audiometry and speech recognition tests (MAC battery, CID sentences).
  • Surgical outcomes and the development of a home-based speech therapy program were documented.

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Main Results:

  • Significant improvements in mean pure-tone thresholds were observed at 500 Hz, 1000 Hz, and 2000 Hz.
  • Patients achieved mean scores of 61.2% on environmental sounds and 48.8% on auditory-only sentences.
  • Auditory-plus-visual sentence recognition reached 95.5%, indicating effective speech understanding with visual cues.

Conclusions:

  • The Ineraid multichannel cochlear implant demonstrates efficacy in improving auditory function for profoundly deaf individuals.
  • The percutaneous pedestal was well-tolerated, and modifications to surgical incisions were implemented.
  • A home-use speech therapy program was developed to support post-implantation rehabilitation.