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Noise exposure and its effect on the labyrinth, Part II.

F L van der Laan1

  • 1Ear Institute, Pretoria, South Africa.

The International Tinnitus Journal
|December 24, 2003
PubMed
Summary

Many tinnitus patients exhibit vestibular disturbances, even without apparent symptoms. A comprehensive cochleovestibular investigation is recommended for severe tinnitus, sudden deafness, and noise exposure.

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[Action of sulpiride on the vestibular system in rabbits].

Therapie·1973

Area of Science:

  • Otolaryngology
  • Neurotology

Background:

  • Neurootological evaluation is crucial for understanding complex auditory and vestibular disorders.
  • Routine assessment includes patient history, audiometry, and equilibriometric tests like electronystagmography.

Observation:

  • Analysis of 12 patients revealed significant vestibular disturbances in many with tinnitus, irrespective of reported vestibular symptoms.
  • Specific findings included spontaneous and positional nystagmus, and nystagmus alternans.

Findings:

  • A notable percentage of tinnitus patients, even those without subjective vestibular complaints, demonstrated objective abnormalities in vestibular function tests.
  • These subclinical vestibular dysfunctions were identified through detailed neurootological examinations.

Implications:

  • The findings suggest a strong link between tinnitus and underlying vestibular system dysfunction.
  • It is recommended that patients with severe disabling tinnitus, sudden deafness, or significant noise exposure receive a complete cochleovestibular investigation to identify potential vestibular involvement.

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