Inferior Vestibular Neuronitis: Case Report

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Víctor Mercado Martínez https://orcid.org/0000-0001-8026-8370
Gustavo Ulloa
Carlos Manuel Pino U.

Keywords

Acute Vestibular Syndrome, Spontaneous Torsional Nystagmus, Inferior Vestibular Neuronitis, Video head impulse test (v-HIT), Cervical Vestibular evoked myogenic potential (c-VEMP)

Abstract

Vestibular neuronitis is a cause of acute vestibular symptoms which occurs commonly and affect primarily the superior branch of the vestibular nerve, giving rise to distinc­tive clinical features. Occasionally, cases of Inferior Vestibular Neuronitis (IVN) pre­senting with vertigo, unsteadiness and spontaneous downward torsional nystagmus, has been proposed in literature. This nystagmus has received even less attention with regard to pathophysiology. Due to the low frequency of Inferior Vestibular Neuronitis and its unusual presentation as a peripheral vestibulopathy, we should be aware for signs and symptoms with the aim of performing an accurate diagnostic workup and offer appropriate treatment.

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