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Related Experiment Videos

Hyperacusis: review and clinical guidelines.

U Katzenell1, S Segal

  • 1Department of Otolaryngology, Wolfson Medical Center, Holon, Israel. katzudi@zahav.net.il

Otology & Neurotology : Official Publication of the American Otological Society, American Neurotology Society [And] European Academy of Otology and Neurotology
|May 12, 2001
PubMed
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Hyperacusis, or sound intolerance, can stem from various auditory and neurological conditions. Research suggests a central nervous system mechanism may underlie this hearing disorder, prompting new clinical guidelines.

Area of Science:

  • Audiology
  • Neurology
  • Otolaryngology

Background:

  • Hyperacusis is characterized by an abnormal intolerance to everyday sound levels.
  • The exact causes and underlying mechanisms of hyperacusis remain incompletely understood.
  • Existing literature presents diverse hypotheses regarding the etiology of hyperacusis.

Purpose of the Study:

  • To comprehensively review the known causes of hyperacusis.
  • To explore various etiological hypotheses for hyperacusis.
  • To propose clinical guidelines for the diagnosis and management of hyperacusis.

Main Methods:

  • Literature review utilizing the MEDLINE database.
  • Search terms included "hyperacusis," "intolerance to sound," "loudness discomfort level," and "phonophobia."

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  • Inclusion of clinical studies, case reports, and laboratory research.

    • Main Results:

    • Identified causes include peripheral auditory system pathologies, central nervous system diseases, and hormonal/infectious diseases.
    • A significant proportion of hyperacusis cases had no identifiable cause.
    • Evidence suggests a central pathophysiological mechanism is more likely than a peripheral one.

    Conclusions:

    • Hyperacusis is associated with a range of systemic and neurological conditions.
    • The pathophysiology of hyperacusis likely involves central neural pathways.
    • Clinical guidelines and treatment strategies for hyperacusis are discussed.