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NCT07627087
The vestibular system, located in the inner ear, provides information to the brain information about how head acceleration and orientation relative to gravity. Damage to the vestibular system is usually permanent and can contribute to a lower quality of life. The goal of this research is to to examine how vestibular implants (VI) may improve performance of cognitive tasks in patients with severe vestibular damage. These higher-level cognitive behaviors include (1) orientation relative to gravity, (2) navigation, and (3) neuropsychologic function. VI patients will be tested in these three cognitive domains across study sessions: pre-stimulation (VI implanted but stimulation OFF), following chronic stimulation (12 days, VI-ON), and then again 1 month later with the VI turned off. There will be both "true" stimulation experiments during which the VI will provide motion-modulated stimulation and also "placebo" stimulation (no motion cues, tonic stimulus). The order of these experiments will be randomized and separated by 3 months. Researchers will compare VI data in the three cognitive domains (spatial orientation, navigation, \& neuropsychologic function) with control data from non-implanted bilateral vestibular loss (BVL) and unilateral vestibular loss (UVL) patients and normal subjects.
NCT06004505
Thirty subjects with unilateral vestibular hypofunction diagnosed by videonystagmography (VNG) were voluntarily included in the study. In addition to Static Posturography test, head thrust test, Unterberger test, bucket test, eyes open/closed tandem stance test, eyes open/closed semitandem stance test, Romberg test, one leg standing on foam floor with eyes open/closed and before vestibular rehabilitation treatment In the initial evaluations, the Visual Analogue Scale (VAS) and the Dizziness Disability Inventory (DHI) were applied to assess the severity of standing on one leg with eyes open/closed, dynamic visual acuity, vertigo, and fatigue. As a result of the study, it was concluded that vestibular rehabilitation is beneficial in patients with unilateral vestibular hypofunction and its effectiveness can be monitored with Static Posturography.