title: Nystagmus using video-oculography in psychiatric patients.
abstract: To evaluate whether nystagmus has clinical significance in psychiatric patients who have functional and/or organic brain dysfunction. We performed gaze, positional and positioning nystagmus tests on 227 patients with psychiatric diseases (144 men, 83 women, with an average age +/- SD of 62.5 +/- 14.0 years) in order to evaluate the frequency and characteristics of nystagmus. Patients were classified according to the underlying disease. Normal control subjects were 107 subjects (26 men, 81 women, with an average age +/- SD of 35.6 +/- 10.0 years). Nystagmus was observed in 56 (24.7%) of 227 cases. Nystagmus was seen in 16 (59.3%) of 27 cases of alcoholism, 14 (22.2%) of 63 cases of organic psychiatric disorders, 25 (20.2%) of 124 cases of schizophrenia, 1 (20.0%) of 5 cases of excited mental retardation, 0 (0.0%) of 7 cases of mood disorders, 0 (0.0%) of 1 case of anxiety disorders and 1 (0.9%) of 107 subjects of normal control. There was a significant difference between psychiatric diseases and normal control. These results indicate that nystagmus may also be a very important clinical finding not only in patients with neurological and neuro-otological diseases, but also in patients with psychiatric diseases.
authors.affiliation: Department of Otorhinolaryngology, University of Miyazaki, Japan. kiyochan@fc.miyazaki-u.ac.jp
authors.forename: Kensuke
authors.initials: K
authors.lastname: Kiyomizu
authors.forename: Keiji
authors.initials: K
authors.lastname: Matsuda
authors.forename: Koji
authors.initials: K
authors.lastname: Torihara
authors.forename: Meiho
authors.initials: M
authors.lastname: Nakayama
authors.forename: Shogo
authors.initials: S
authors.lastname: Komaki
authors.forename: Tetsuya
authors.initials: T
authors.lastname: Tono
authors.forename: Yasushi
authors.initials: Y
authors.lastname: Ishida
authors.forename: Kensei
authors.initials: K
authors.lastname: Yoshida
authors.forename: Takashi
authors.initials: T
authors.lastname: Kimitsuki
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D004584:Electronystagmography / Q000379:methods*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D015994:Incidence; D007564:Japan / Q000453:epidemiology; D008297:Male; D001523:Mental Disorders / Q000150:complications / Q000503:physiopathology*; D008875:Middle Aged; D009759:Nystagmus, Pathologic / Q000175:diagnosis* / Q000453:epidemiology / Q000209:etiology; D009760:Nystagmus, Physiologic / Q000502:physiology*; D009801:Oculomotor Muscles / Q000503:physiopathology*; D012189:Retrospective Studies; D014741:Video Recording; D055815:Young Adult