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Tympanic membrane changes following paediatric cochlear implantation

Yvonne Chan1, Paolo Campisi, Adrian L James

  • 1Cochlear Implant Program, Hospital for Sick Children, Department of Otolaryngology - Head & Neck Surgery, University of Toronto, Toronto, Canada.

Cochlear Implants International
|September 16, 2008
PubMed

Insights

Cochlear implantation in children may lead to tympanic membrane scarring, particularly near the electrode array. Further research is needed to understand the clinical significance of this finding.

Area of Science:

  • Otolaryngology
  • Pediatric audiology
  • Medical device research

Background:

  • Cochlear implantation is a common treatment for pediatric hearing loss.
  • The long-term effects of cochlear implant devices on middle ear structures require ongoing investigation.

Purpose of the Study:

  • To evaluate the impact of cochlear implantation on the tympanic membrane in pediatric patients.
  • To identify any associated tympanic membrane abnormalities and their potential causes.

Main Methods:

  • A cross-sectional study involving 84 pediatric cochlear implant recipients.
  • Examination of the implanted ear's external auditory canal and tympanic membrane.
  • Retrospective collection of demographic and clinical data.

Main Results:

  • Abnormal tympanic membrane findings were observed in 46.9% of patients.
  • The most frequent abnormality was tympanic membrane scarring near the electrode array.
  • No significant association found between tympanic membrane findings and patient demographics or clinical history.

Conclusions:

  • Cochlear implantation may result in tympanic membrane scarring.
  • The clinical significance of this scarring remains undetermined.
  • Avoiding dehiscence of the posterior external auditory canal wall is recommended to prevent tympanic membrane retraction pockets.
Abstract

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