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Related Experiment Videos

Chronic labyrinthine ischemia.

M Rubinstein1, M Hildesheimer, C Muchnik

  • 1School for Communication, Speech and Hearing Disorders, Sackler School of Medicine, Tel Aviv University, Israel.

The Journal of Laryngology and Otology
|June 1, 1988
PubMed
Summary
This summary is machine-generated.

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Chronic labyrinthine damage, often linked to impaired blood circulation and increased blood viscosity, commonly causes progressive bilateral hearing loss. Vestibular deficits were observed in all patients, with central nervous system compensation likely explaining mild equilibrium issues.

Area of Science:

  • Otolaryngology
  • Neurology
  • Vascular Medicine

Background:

  • Chronic impairment of blood supply to the inner ear (labyrinth) can lead to hearing and balance problems.
  • The exact cause of labyrinthine damage is often unclear, even in patients with systemic circulation issues.

Purpose of the Study:

  • To describe audiological and vestibular deficits in patients with suspected chronic labyrinthine blood supply impairment.
  • To investigate the relationship between systemic circulation pathologies and labyrinthine damage.

Main Methods:

  • Evaluation of 39 subjects with various systemic circulation pathologies and unexplained labyrinthine damage.
  • Audiological tests including Pure Tone Audiogram and Speech Reception Threshold.
  • Vestibular examination to assess balance function.

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Main Results:

  • 80% of subjects had increased blood viscosity.
  • Slow, progressive bilateral sensorineural hearing loss was the most common finding, often starting with high-tone loss.
  • All subjects showed pathological results in vestibular tests; mild equilibrium complaints were possibly due to central compensation.

Conclusions:

  • Chronic labyrinthine blood flow issues are associated with significant audiological and vestibular deficits.
  • Increased blood viscosity may play a role in the development of these deficits.
  • Central nervous system compensation can mask severe vestibular impairments, leading to mild subjective symptoms.