Body sway in patients with Ménière's disease after endolymphatic sac operation

The body sway test is the most useful assessment of vestibular dysfunction. We compared 24 normal subjects and 44 patients with unilateral Meniere's disease.The time course of Meniere's disease was also evaluated by non-sequential vector analysis after endolymphatic sac operation.Body sway in normal subjects was usually dominant in the right-forward to left-backward direction and always more so in patients with Meniere's disease with eyes open or closed.This analysis was useful in evaluating the time course of Meniere's disease and effect of endolymphatic sac operation.