Res Vestib Sci.  2012 Sep;11(3):92-96.

Cervical Vestibular Evoked Myogenic Potential and Ocular Vestibular Evoked Myogenic Potential in Patients With Vestibular Neuritis and Acute Viral Labyrinthitis

Affiliations
  • 1Department of Otorhinolaryngology-Head and Neck Surgery, Soonchunhyang University College of Medicine, Bucheon, Korea. ljdent@schmc.ac.kr

Abstract

BACKGROUND AND OBJECTIVES
Vestibular neuritis predominantly affects the superior branch of the vestibular nerve, resulting in vertigo. Acute viral labyrinthitis occurs when an infection affects both vestibulo-cochlear nerve and labyrinth, resulting in hearing changes as well as vertigo. The purpose of study is to identify there is a difference of cervical vestibular evoked myogenic potentials (cVEMP) and ocular VEMP (oVEMP) in patients with vestibular neuritis and acute viral labyrinthitis.
MATERIALS AND METHODS
cVEMP and oVEMP tests using 500-Hz tone-burst stimuli were performed on patients with vestibular neuritis and acute viral labyrinthitis. Pure tone audiometry, caloric test and subjective visual vertical (SVV) were performed in all patients. We compared the VEMP results, SVV, caloric test in patients with vestibular neuritis and acute viral labyrinthitis.
RESULTS
Abnormal cVEMP responses were detected in 2 (20%) patients with vestibular neuritis and 5 (100%) patients with labyrinthitis. Abnormal oVEMP responses were detected in 9 patients (90%) with vestibular neuritis and 5 (100%) patients with labyrinthitis. oVEMP abnormalities is correlated with caloric test and subjective visual vertical in patients with vestibular neuritis and labyrinthits.
CONCLUSION
Our results shows that the response of cVEMP and oVEMP between patients with vestibular neuritis and acute viral labyrinthitis is different. We can infer that oVEMP response to air-conducted sound is different vestibular origin compared to cVEMP and may originate from utricle.

Keyword

Cervical vestibular evoked myogenic potentials; Ocular vestibular evoked myogenic potentials; Vestibular neuritis; Labyrinthitis

MeSH Terms

Audiometry
Caloric Tests
Ear, Inner
Hearing
Humans
Labyrinthitis
Saccule and Utricle
Vertigo
Vestibular Evoked Myogenic Potentials
Vestibular Nerve
Vestibular Neuronitis
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