Vestibular Evoked Myogenic Potential (VEMP) Testing

Communikare Services

Vestibular Evoked Myogenic Potential (VEMP) Testing

Disequilibrium can cause accidents and other problems that need to be correctly diagnosed
and treated. This is why Communikare Multi Rehab and Hearing Aid Center has added
Vestibular Evoked Myogenic Potential (VEMP) testing to our diagnostic services.
It can be hard to figure out what causes dizziness, vertigo, and disequilibrium, but it’s
usually a peripheral vestibular disorder related to the inner ear or a central vestibular
disorder related to problems with how the brain processes information.

Understanding vestibular dysfunction, its signs and causes

  • For a comprehensive understanding of VEMP testing, it is vital to comprehend
    vestibular dysfunction, which is a disturbance of the body’s balance system due to
    peripheral or central causes.
  • Vision, touch sensors in the feet, trunk, and spine, and the vestibular system in the
    inner ear deliver positional data to the central vestibular system, which analyses
    these signals and communicates with other systems to make adjustments that help
    you maintain your balance.
  • Although symptoms such as dizziness, vertigo, nausea, vomiting, sensitivity to head
    motion, nystagmus, unsteady gait, and postural instability can be caused by
    conditions other than vestibular dysfunction, they are characteristic of this condition.
  • Common causes of vestibular dysfunction include acoustic neuroma, benign
    paroxysmal positional vertigo (BPPV), labyrinthitis, vestibular neuritis

VEMP Testing

  • The inferior vestibular nerve produces the vestibular evoked myogenic potential
    reflex, which demonstrates the integrity of the vestibular response. This is the reflex
    measured during VEMP testing.
  • Although the diagnostic value and scientific data supporting the use of VEMP testing
    are still being researched, the majority of VEMP research focuses on two key
    responses.
  • Cervical VEMP (cVEMP) and ocular VEMP (oVEMP) are responses that measure the
    linear otolith function sensors of the inner ear. cVEMP is used to evaluate the
    saccular function and inferior branch of the vestibular nerve, whereas oVEMP is used
    to evaluate the utricular function and superior branch of the vestibular nerve.

During VEMP Testing

  • Evaluation of the Vestibular Evoked Myogenic Potential (VEMP) is performed in
    conjunction with the VNG in patients with vertigo or balance issues.
  • During the VEMP test, you will recline at an angle while electrodes are affixed to
    your head and neck using adhesive patches. As you raise your head slightly, the
    electrodes will detect a knocking sound.
  • By lowering the knocking to determine if one ear is more sensitive than the other or
    by testing only one ear, we can determine which side may be causing the dizziness or
    imbalance

Diagnose Procedure of VEMP Testing

  • VEMP testing is commonly used in conjunction with VNG testing in the evaluation
    of conditions such as vestibular neuritis inflammation of the vestibular nerve and
    Meniere’s disease fluid abnormality of the ear, despite the fact that it is not the sole
    diagnostic tool for most conditions involving dizziness, vertigo, and balance
    disorders.
  • Patients with vestibular migraines exhibit an absence of or a reduction in VEMP
    amplitude in one or both ears, prompting more research into the association between
    VEMPs.
  • This type of testing has also been utilized for the early diagnosis of demyelinating
    illnesses, such as multiple sclerosis, leading to treatments intended to prevent the
    rapid deterioration and onset of impairments.
    ● VEMP testing can also aid in the diagnosis of superior semicircular canal dehiscence
    (SSCD), which is caused by the escape of pressure and/or fluid from the structures of
    the inner ear. It is another disorder that creates vestibular dysfunction symptoms as
    well as concerns with eye-focus, hearing loss, and sound sensitivity.

Our audiologist will do VEMP testing to assess whether the saccule and vestibular nerve are
intact and working properly. In reaction to head movements, the saccule and inferior
vestibular nerves deliver signals to the eye muscles when they are working optimally.
As part of our dedication to providing the greatest level of hearing care to our patients,
Communikare Hearing Aid utilises cutting-edge technology to deliver the most precise
diagnosis of hearing and balance disorders.
The enhanced clarity afforded by VEMP testing improves our capacity to provide
individualized care that is tailored to your specific needs.

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