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Clinical benefit of wideband-tympanometry: a pediatric audiology clinical study

Laura Stuppert1,2, Sabine Nospes3, Andrea Bohnert1,3

  • 1Audiological Acoustics Division, Department of Otolaryngology, Head and Neck Surgery, University of Mainz, HNO-Universitätsklinik, Langenbeckstraße 1, 55131, Mainz, Germany.

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
|June 9, 2019
PubMed

Insights

Wideband-tympanometry (WBT) offers valuable insights into middle ear conditions in children, complementing traditional methods. This study highlights WBT

Area of Science:

  • Pediatric audiology
  • Otolaryngology
  • Diagnostic audiology

Background:

  • Conventional tympanometry has limitations in assessing pediatric middle ear conditions.
  • Wideband-tympanometry (WBT) offers a potentially more comprehensive evaluation of tympanic membrane and middle ear function.
  • The clinical utility of WBT in pediatric audiology requires further investigation.

Purpose of the Study:

  • To evaluate the additional clinical benefit of wideband-tympanometry (WBT) in pediatric audiology.
  • To compare WBT findings with conventional tympanometry and otoscopic examinations in children.
  • To analyze the diagnostic value of WBT across different age groups in pediatric populations.

Main Methods:

  • A retrospective study involving 150 children (281 ears) aged 11 days to 14 years with normal hearing, confirmed by audiometry or auditory brainstem response (ABR).
  • Participants were categorized into four age groups for analysis: ≤6 months, >6 months to 3 years, >3 years to 11 years, and >11 years.
  • All children underwent ENT examination, ear microscopy, conventional tympanometry (226-Hz or 1000-Hz), and wideband-tympanometry (WBT), with ear canal volumes measured.

Main Results:

  • Children aged ≤3 years exhibited smaller mean ear canal volumes compared to literature values.
  • A strong statistical correlation was observed between WBT results and 1000-Hz tympanometry, but a weak correlation with ear microscopic findings.
  • Patients with abnormal ear microscopy showed significantly reduced WBT absorbance at 1000 Hz and 2000 Hz across all age groups.

Conclusions:

  • Wideband-tympanometry (WBT) provides additive data for accurate middle ear status assessment in children.
  • WBT is a valuable supplementary tool in pediatric audiology for evaluating middle ear problems and characterizing infantile hearing loss.
  • Further research with larger pediatric cohorts is necessary to establish standard interpretation guidelines for WBT in this population.
Abstract

Keywords:
Hearing loss in childhoodOMEOtitis media with effusionPediatric audiologyTympanometryWideband-tympanometry

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