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Systematic Hearing Performance Evaluation Process for Adolescents with Cochlear Implantation at Early Ages
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Comparison between new and old generation RetroX auditory implants.

J P Van Damme1, J Jamart, P Garin

  • 1Otolaryngology Department, Cliniques Universitaires U.C.L., Université Catholique de Louvain, Mont-Godinne, Belgium.

B-ENT
|April 28, 2010
PubMed
Summary
This summary is machine-generated.

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The new RetroX hearing device offers improved postaural soft tissue tolerance and enhanced hearing gain compared to the older model. This titanium tube implant provides better audibility for patients with high-frequency sensorineural hearing loss.

Area of Science:

  • Otolaryngology
  • Biomedical Engineering
  • Audiology

Background:

  • The RetroX is a postaural implantable hearing device using a titanium tube.
  • Previous iterations had limitations in soft tissue tolerance and hearing amplification.
  • High-frequency sensorineural hearing loss requires effective amplification strategies.

Purpose of the Study:

  • To compare the postaural soft tissue tolerance of old and new titanium RetroX tubes.
  • To evaluate hearing improvements between the older (DSP-pro) and newer (Concertino) RetroX hearing aid units.

Main Methods:

  • Retrospective case review of 46 patients with high-frequency sensorineural hearing loss.
  • Analysis of 51 RetroX implantations (old vs. new titanium tubes).
  • Patients completed questionnaires on feedback annoyance and underwent audiometric tests (pure-tone, speech in silence, speech in noise).

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Main Results:

  • The new RetroX titanium tube demonstrated higher reliability with fewer explantations (1/25 vs. 12/26).
  • The Concertino hearing aid unit allowed for higher amplification before feedback, improving hearing gain.
  • Slightly more frequent size adjustments were needed for the new tube (5/25 vs. 2/26).

Conclusions:

  • The new generation RetroX implant offers superior soft tissue tolerance and reliability.
  • The Concertino system enhances hearing ability more effectively than the DSP-pro unit.
  • The updated RetroX device represents an improvement for managing high-frequency sensorineural hearing loss.