Special dizziness diagnostics

The purpose of dizziness diagnostics is to measure the responses of the body and eye to specific stimuli of the vestibular organ of an ear. With this automated vertigo diagnosis, the vertigo can be clarified as to whether it is peripheral (inner ear with vestibular system) or central (from the brain stem to the cerebrum) vertigo (video nystagmography, VNG).

With modern measuring methods, the cause of the balance disorder can now be located very precisely. This localization can provide important findings for an accurate diagnosis of vertigo. By measuring the responses of muscle potentials triggered by the sense of balance, vestibular evoked myogenic potentials (VEMP) can be measured and thus information about the function of the saccule and the associated nervous system can be obtained. The measurement of the “O-VEMP’s” provides information about the utricle and is carried out with acoustic stimulation. The system has a function to monitor muscle tone. The VEMP response is scaled according to the muscle tone and included in the right/left comparison. This enables a very precise diagnosis of the vestibular disorder.

The videographically assisted head impulse test (VHIT) is a modern method of measuring unilateral or bilateral loss of balance. The test measures the function of the three semicircular canals separately for each side. A naturally occurring vestibulo-ocular reflex is measured, which is a reflex between the vestibular organ and the eye. In healthy people, the reflex should be triggered normally when the head is turned passively.

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