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High frequency audiometry in facial paralysis.

T Rahko1, P Karma

  • 1Department of Otolaryngology, Tampere University Central Hospital, Finland.

Acta Oto-Laryngologica. Supplementum
|January 1, 1988
PubMed
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High frequency hearing loss is common in Bell

Area of Science:

  • Audiology
  • Neurology
  • Otolaryngology

Background:

  • Bell's palsy involves facial nerve (VIIth cranial nerve) dysfunction.
  • Hearing abnormalities can occur in patients with facial nerve lesions.

Purpose of the Study:

  • To investigate high-frequency hearing thresholds in patients diagnosed with Bell's palsy.
  • To determine the prevalence and characteristics of hearing deficits associated with facial palsy.

Main Methods:

  • Audiometric evaluation of high-frequency hearing thresholds (10-21 kHz).
  • Comparison of hearing thresholds between the affected and unaffected ears in 54 Bell's palsy patients.

Main Results:

  • 46% of patients exhibited worse high-frequency hearing in the affected ear.

Related Experiment Videos

  • 30% of patients showed better high-frequency hearing in the affected ear.
  • Statistically significant differences in mean hearing thresholds were observed at several frequencies.

    • Conclusions:

    • High-frequency hearing impairments are a notable feature in a significant portion of Bell's palsy cases.
    • These findings suggest that the underlying lesion in Bell's palsy may extend beyond the facial nerve itself.