Section II: Definition of Vestibular Neuronitis

Abstract

A series of 46 patients with vestibular neuronitis, according to the definition proposed in Section I, was studied. It was found that: (1) There was no sex predominance. (2) Some patients complained of tinnitus and fullness, but the incidence of such complaints did not differ significantly from that found in a group of patients with normal auditory and vestibular function. (3) The onset of vertigo typically occurred over a period of hours or even days. (4) Two patients showed evidence of impaired taste function on the side of the vestibular deficit, thus suggesting involvement of the chorda tympani. (5) On two patients, body-sway galvanic tests were obtained. Both showed galvanic deficits on the side of the vestibular deficit, thus supporting a neural location of the lesion.