Electronystagmography in the diagnosis of multiple sclerosis.

The aim of our study was to define the diagnostic importance of a complete electronystagmographic (ENG) examination (visual-vestibular, vestibular and visual suppression tests on caloric nystagmus) in patients affected by MS. Of 144 patients examined, 116 were definite and 28 possible. Descriptive data of the instrumental findings showed very frequent alterations of one or more subtests: pursuit movements and visual suppression test were especially pathological, in respectively 56% and 58% of the cases; spontaneous and/or evoked nystagmus was present in 45%.