Neuro-otology: at the borders of ear and brain

Der Nervenarzt
A ZwergalM Dieterich

Abstract

Vertigo and dizziness are frequent chief complaints in clinical practice. Symptoms may originate from otological, neurological, medical and psychiatric etiologies, which poses an interdisciplinary challenge. Systematic analysis of case history and clinical examination generally allow classification into peripheral-, central- or non-vestibular disorders. The most important criteria for differentiation are the timeline, quality of symptoms, modulating factors and accompanying symptoms. As concerns the clinical examination, the following tests are relevant: head impulse test, test for spontaneous nystagmus, positional nystagmus, central ocular motor signs and the Romberg test. However, neuro-otological disorders with combined peripheral and central vestibular pathology do exist. Occlusion of the anterior inferior cerebellar artery results in ischemia of the labyrinth and cerebellum and therefore causes acute vestibular syndrome and unilateral hearing loss. Repetitive attacks of vertigo or dizziness which are accompanied by ear symptoms and headaches may be due to an overlap syndrome of Menière's disease and vestibular migraine. In this case patients often have to be treated with a dual prophylactic medication to control symptoms. ...Continue Reading

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