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Disequilibrium in older people: a prospective study.

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Chronic unilateral vestibular loss.

K A Kerber1

  • 1Department of Neurology, University of Michigan Health System, Ann Arbor, MI, USA.

Handbook of Clinical Neurology
|September 18, 2016
PubMed
Summary

Chronic unilateral vestibular loss, a persistent deficit in one ear's balance system, affects patients differently, ranging from asymptomatic to disabling. Causes include viral issues, Meniere's disease, and trauma.

Area of Science:

  • Neurology
  • Otolaryngology
  • Vestibular Science

Background:

  • Chronic unilateral vestibular loss involves reduced function of the peripheral vestibular system on one side, persisting for 3+ months.
  • This deficit impacts the vestibular-ocular reflex, detectable via bedside or laboratory tests.
  • Symptom severity in patients with this condition varies, from asymptomatic to significantly disabling.

Purpose of the Study:

  • To define chronic unilateral vestibular loss.
  • To outline common causes and diagnostic methods.
  • To describe the clinical spectrum of the condition.

Main Methods:

  • Clinical definition based on duration and vestibular system function.
  • Assessment of vestibular-ocular reflex (VOR) reduction.
Keywords:
Menière's diseasedizzinessvertigovestibularvestibular neuritisvestibulopathy

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  • Review of etiological factors and patient-reported symptoms.

    • Main Results:

    • Chronic unilateral vestibular loss is characterized by a persistent unilateral peripheral vestibular deficit.
    • Reduced VOR function is a key diagnostic indicator.
    • Identified causes include viral disorders, Meniere's disease, structural lesions, ischemia, and trauma.

    Conclusions:

    • Chronic unilateral vestibular loss is a distinct clinical entity.
    • Diagnosis relies on objective measures of vestibular function.
    • Diverse etiologies contribute to this condition, with varied clinical presentations.