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Published on: August 30, 2019
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Association of Vestibular Disorders and Cognitive Function: A Systematic Review
Jiongke Li1,2, Xianpeng Xu1,2, Xinxing Deng1,2
1Department of Otorhinolaryngology, Chengdu University of Traditional Chinese Medicine, Chengdu, China.
The Laryngoscope
|July 17, 2024
Summary
Vestibular disorders are linked to cognitive impairment, especially in visuospatial skills. Chronic conditions increase this risk, potentially due to hippocampal changes. This review synthesizes current evidence.
Area of Science:
- Neuroscience
- Otolaryngology
- Geriatrics
Background:
- Vestibular diseases are common, particularly in older adults.
- Cognitive impairment is a significant concern in aging populations.
- The relationship between vestibular dysfunction and cognitive decline requires further elucidation.
Purpose of the Study:
- To systematically review and synthesize evidence on the association between vestibular disorders and cognitive impairment.
- To identify specific cognitive domains affected by vestibular diseases.
- To explore potential underlying mechanisms and risk factors.
Main Methods:
- A systematic literature search was performed across major databases (PubMed, Embase, Web of Science, Cochrane Library) up to March 2024.
- Keywords included various vestibular disorders (e.g., Meniere's disease, BPPV) and cognitive function terms.
- A qualitative review assessed 45 relevant publications.
Main Results:
- Individuals with vestibular disorders exhibit varying degrees of cognitive impairment.
- Visuospatial cognitive deficits are particularly prominent.
- Chronic vestibular syndromes are associated with a higher prevalence of cognitive dysfunction.
- The hippocampus plays a critical role in the vestibular neural network.
Conclusions:
- Vestibular disorders can lead to cognitive impairments, notably in visuospatial abilities.
- Hippocampal size reduction may be an underlying mechanism.
- Chronic vestibular dysfunction increases the risk of cognitive deficits.
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