Vestibular nerve dysfunction in patients with auditory neuropathy revealed by galvanic VEMPs

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  • Kimura Yusuke
    National Institute of Sensory Organs, National Tokyo Medical Center Department of Otolaryngology—Head and Neck Surgery, Nihon University School of Medicine
  • Kaga Kimitaka
    National Institute of Sensory Organs, National Tokyo Medical Center

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Other Title
  • Galvanic VEMPによって明らかとなったAuditory Neuropathyの前庭神経障害
  • Galvanic VEMP ニ ヨッテ アキラカ ト ナッタ Auditory Neuropathy ノ ゼンテイ シンケイ ショウガイ

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Abstract

<p>Objectives: We aimed to determine vestibular nerve function in patients with auditory neuropathy (AN) based on galvanic vestibular-evoked myogenic potentials (VEMPs).</p><p>Methods: We enrolled 8 patients with an average age of 45.3 ± 29.5 y (mean ± standard deviation) diagnosed with AN. We evaluated their vestibular nerve function based on galvanic VEMPs. The function of the semicircular canals was assessed in all patients using a caloric test. The function of the otolithic apparatus was evaluated using cervical VEMPs.</p><p>Results: Galvanic VEMPs were assessed in 8 patients with AN; 4 patients (50%) had bilateral inaction. Six patients showed no responses in the caloric test and cervical VEMPs.</p><p>Conclusion: In this study, the response of galvanic VEMPs was reduced in 50% of the subjects. Therefore, in some patients with AN, the function of the vestibular nerve is compromised.</p>

Journal

  • Otology Japan

    Otology Japan 31 (2), 161-167, 2021

    Japan Otological Society

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