Balance & Vertigo Assessment

bva-cahabcThis is our main area of expertise. We deploy test battery approach for balance and vertigo assessment. This regime is recommended by top medical institutions/organizations of the world dealing with the diagnosis of balance disorders. Some of the tests we do as part of the test battery are as bellows:

  • Electronystagmography/Videonystagmography (ENG/VNG)
  • Auditory brainstem response
  • Electrocochleography
  • VEMP testing

Electronystagmography(ENG)/Videonystagmography(VNG)

ENG is a battery (group) of eye-movement tests that look for signs of vestibular dysfunction or neurological problems by measuring nystagmus(a type of involuntary eye movements) and other eye movements. ENG tests are the most commonlyused for the people with dizziness, vertigo, and/ or balance disorders.
During ENG, eye movements are recorded and analyzed via small electrodes placed on the skin around the eyes. The electrodes attach to the skin with an adhesive, much like a small bandage. Alternatively, eye movements may be recorded by videonystagmography (VNG) using an infrared video camera mounted inside goggles that the patient wears instead of sticky-patch electrodes.

Videonystagmography (VNG) or ENG technology is used for testing inner ear and central motor functions. This testing helps the audiologist to determine if a vestibular (inner ear) disease may be causing a balance or dizziness problem, and is one of the only tests available today that can decipher between a unilateral (one ear) and bilateral (both ears) vestibular loss. VNG testing is non-invasive, and only minor discomfort is felt by the patients during the testing

Auditory brainstem response

This test provides objective information about the central auditory system. This is a simple, painless, non-invasive test. A click stimulus is presented through soft foam earplugs. This test records the brainwave response to the stimulus. This is the most reliable test to find the hearing level of adults, infants and also very reliable test for mentally retarded people.

Vestibular Evoked Myogenic Potential (VEMP)

VEMP testing is used to evaluate whether the saccule and the inferior vestibular nerve are intact and functioning normally. During VEMP testing, headphones are placed over the ears and small electrodes are attached with an adhesive to the skin over the neck muscles. When sound is transmitted through the headphones, the electrodes record the response of the muscle to the vestibular stimuli.