ArticleEuropean journal of neurology2025
Neurotologic Findings of Idiopathic Acute Unilateral Audiovestibulopathy.
Article in European journal of neurology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
- Neurotologic Findings of Idiopathic Acute Unilateral Audiovestibulopathy.European journal of neurology · 2025Article
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6 authors.
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Abstract
background and purposeUnlike acute unilateral vestibulopathy or vestibular neuritis (AUVP/VN), of which the diagnosis is made based on well-established neurotologic findings, the diagnosis of idiopathic acute unilateral audiovestibulopathy (iAUAV, also known as labyrinthitis) still requires further elucidation.
methodsWe retrospectively reviewed the medical records of patients with first-onset acute audiovestibulopathy (AAVS) in a referral-based university hospital in South Korea between March 2018 and September 2024. The results of video-oculography, video head-impulse, and other neurotologic evaluations were included for analysis. In addition, an MRI dedicated to the inner ear was conducted. The findings were compared with 80 patients with AUVP/VN.
resultsA total of 73 patients with iAUAV (age range = 20-85 years, mean age ± SD = 60 ± 18 years, 33 male) were included in the analyses. 26% and 12% of patients showed ipsilesional nystagmus and predominant downbeat nystagmus, respectively. The vestibulo-ocular reflex (VOR) gain was decreased in horizontal (HC, n = 41), posterior (PC, n = 23), and anterior canals (AC, n = 9), showing more frequent involvement of PC compared to those with AUVP/VN (p = 0.002). Positive MRI results were found in 28 patients with iAUAV (28/68, 41%), showing high signal intensities over the vestibule (n = 27), cochlea (n = 25), HC (n = 21), PC (n = 21), and AC (n = 7) on MRIs.
conclusionsPatients with iAUAV can show various neurotologic findings that deviate from typical AUVP/VN. Recognition of these findings can aid in a deeper understanding of the pathophysiology of iAUAV, which is distinct from AUVP/VN, and differentiation from other etiologies of AAVS that can have a debilitating prognosis.
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