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Related Experiment Videos

Automatic immittance audiometry on children with transtympanic ventilation tubes.

S W Painton1

  • 1Department of Communicative Disorders, East Tennessee State University, Johnson City.

Ear and Hearing
|June 1, 1989
PubMed
Summary

Automatic immittance audiometry, used in schools, can occlude ventilation tubes in children. This screening method requires caution, especially when performed by non-audiologists without otoscopic examination.

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Area of Science:

  • Pediatric audiology
  • Otolaryngology
  • Medical device safety

Background:

  • Automatic immittance audiometry is increasingly used for middle ear abnormality detection in educational settings.
  • Screenings are often conducted by non-audiologists lacking routine otoscopic examination.
  • Transtympanic ventilation tubes are common in children with recurrent otitis media.

Observation:

  • A clinical case involved a child with ventilation tubes undergoing automatic immittance audiometry.
  • The immittance testing procedure led to the occlusion of one transtympanic ventilation tube.
  • This occlusion occurred despite the presence of ventilation tubes.

Findings:

  • The study explains the mechanism by which immittance audiometry can cause ventilation tube occlusion.

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  • Analysis suggests pressure changes during the test may contribute to the blockage.
  • The specific events leading to occlusion in this case are detailed.

    • Implications:

    • Highlights a potential risk associated with automatic immittance audiometry in children with ventilation tubes.
    • Emphasizes the importance of otoscopic examination before immittance testing in this population.
    • Recommends caution and awareness among screening personnel regarding this complication.