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[Vestibular evoked myogenic potentials and benign paroxysmal positional vertigo]
Marisol Boleas-Aguirre1, Noelia Sánchez-Ferrándiz, Julio Artieda
1Departamento de Otorrinolaringología, Clínica Universitaria de Navarra, Universidad de Navarra, Pamplona Navarra, España. msboleas@unav.es
Some patients with benign paroxysmal positional vertigo (BPPV) experience saccular dysfunction, indicated by absent vestibular evoked myogenic potential (VEMP) responses. This suggests a potential link between BPPV and impaired saccular function.
Area of Science:
- Neuroscience
- Otolaryngology
- Vestibular System
Context:
- Benign paroxysmal positional vertigo (BPPV) is commonly linked to otoconia displacement within the semicircular canals.
- The utricle's macula is the origin of otoconia, and saccular function can be assessed using vestibular evoked myogenic potentials (VEMPs).
Purpose:
- To investigate saccular function in patients diagnosed with BPPV using VEMPs.
- To determine the prevalence of saccular dysfunction in BPPV patients.
Summary:
- Vestibular evoked myogenic potential (VEMP) responses were evaluated in 19 patients with posterior semicircular canal BPPV.
- A significant proportion of BPPV patients (52%) exhibited absent VEMP responses, indicating potential saccular dysfunction.
Impact:
- Findings suggest that saccular dysfunction may be present in some individuals with idiopathic BPPV.
- This highlights the importance of assessing saccular function in the comprehensive evaluation of BPPV patients.
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