Degree of Functional Impairment Associated With Vestibular Hypofunction Among Older Adults With Cognitive Decline

Objective: Considering the altered multisensory signal compensation during senescence, the aim of the present study was to evaluate the integration rearrangements in unilateral vestibular hypofunction (UVH) during age-related cognitive decline. Study Design: Cross-sectional study. Setting: Longitudinal cohort study unit and of University tertiary referral center. Patients: Older UVH individuals ≥ 55 years with Mild Cognitive Impairment (MCI) or Alzheimer Disease (AD) and matched UVH control group with age-appropriate cognitive function. Intervention: Vestibulo-ocular reflex, postural sway examination (respectively performed by means of video head impulse test and static posturography), and dizziness-related and quality of life scores were collected in all three groups of UVH patients cognitively evaluated by means of Mini Mental State Examination and Alzheimer's Disease Assessment Scale (ADAS-cog). Main Outcome Measures: Vestibulo-ocular reflex gain, length, surface, and spectral values of body oscillation were measured. Dizziness Handicap Inventory, Activities-specific Balance Confidence scale, and Dynamic Gait Index scores were collected. Results: A significant (p 

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