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Related Concept Videos

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The inner ear assumes dual functionalities of auditory perception and equilibrium maintenance. The vestibule is the organ responsible for balance. This organ contains mechanoreceptors, specifically hair cells, endowed with stereocilia, which aid in deciphering information regarding the position and motion of our heads. Two intrinsic components, the utricle and saccule, help perceive head position, while the semicircular canals track head movement. Neurological messages initiated in the...
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Related Experiment Video

Updated: Apr 3, 2026

Using Unidirectional Rotations to Improve Vestibular System Asymmetry in Patients with Vestibular Dysfunction
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Persistent otolith dysfunction even after successful repositioning in benign paroxysmal positional vertigo.

Eui-Joong Kim1, Sun-Young Oh2, Ji Soo Kim3

  • 1Department of Neurology, Chonbuk National University School of Medicine, jeonju, South Korea.

Journal of the Neurological Sciences
|September 16, 2015
PubMed
Summary

Vestibular evoked myogenic potentials (VEMPs) reveal widespread otolithic dysfunction in benign paroxysmal positional vertigo (BPPV) patients, even in unaffected ears. Abnormalities persist after treatment, suggesting underlying bilateral otolith organ damage.

Keywords:
BPPV=benign paroxysmal positional vertigoCervical VEMPsOcular VEMPsSacculeUtricleVEMPs=vestibular evoked myogenic potentials

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Area of Science:

  • Neurology
  • Otolaryngology
  • Vestibular System Physiology

Background:

  • Benign paroxysmal positional vertigo (BPPV) is a common vestibular disorder.
  • Evaluating utricular and saccular function is crucial for understanding BPPV pathophysiology.

Purpose of the Study:

  • To assess utricular and saccular function in patients with BPPV during acute and resolved phases.
  • To compare vestibular evoked myogenic potentials (VEMPs) between BPPV patients and healthy controls.

Main Methods:

  • Ocular (oVEMPs) and cervical VEMPs (cVEMPs) were recorded in 112 BPPV patients and 50 controls.
  • VEMPs were tested at diagnosis and 2 months post-treatment.
  • Air-conducted sound (1000Hz) was used to elicit VEMP responses.

Main Results:

  • Abnormalities in cVEMPs and oVEMPs were significantly more prevalent in BPPV patients than controls (p<0.01).
  • Reduced or absent VEMP responses were common, indicating otolithic dysfunction.
  • The non-affected ear in BPPV patients also showed higher VEMP abnormalities compared to controls.
  • VEMP abnormalities persisted after successful BPPV repositioning maneuvers.

Conclusions:

  • BPPV is associated with widespread, often bilateral, otolithic dysfunction.
  • Persistent VEMP abnormalities suggest underlying damage to the otolith organs beyond the affected ear.
  • VEMPs are valuable tools for assessing otolithic function in BPPV.