title: Upward gaze-evoked nystagmus with organoarsenic poisoning.
abstract: The authors report assessment of abnormal ocular movements in three patients after organoarsenic poisoning from diphenylarsinic acid. The characteristic and principal sign is upward gaze-evoked nystagmus. Moreover, vertical gaze holding impairment was shown by electronystagmography on direct current recording.
authors.affiliation: Department of Neurology, Ryugasaki Saiseikai Hospital, Ryugasaki, Ibaraki, 305-0854, Japan. k.nakamagoe@ryugasaki-hp.org
authors.forename: Kiyotaka
authors.initials: K
authors.lastname: Nakamagoe
authors.forename: Kazuhiro
authors.initials: K
authors.lastname: Ishii
authors.forename: Akira
authors.initials: A
authors.lastname: Tamaoka
authors.forename: Shin'ichi
authors.initials: S
authors.lastname: Shoji
mesh_terms: D000293:Adolescent; D000328:Adult; D020261:Arsenic Poisoning / Q000150:complications* / Q000175:diagnosis / Q000503:physiopathology*; D001152:Arsenicals / Q000009:adverse effects; D002619:Chemical Warfare Agents / Q000009:adverse effects; D005260:Female; D005403:Fixation, Ocular / Q000187:drug effects / Q000502:physiology; D006801:Humans; D007564:Japan; D008279:Magnetic Resonance Imaging; D008636:Mesencephalon / Q000187:drug effects / Q000473:pathology / Q000503:physiopathology; D009759:Nystagmus, Pathologic / Q000139:chemically induced* / Q000175:diagnosis / Q000503:physiopathology*; D009801:Oculomotor Muscles / Q000294:innervation / Q000503:physiopathology; D009802:Oculomotor Nerve / Q000187:drug effects / Q000473:pathology / Q000503:physiopathology; D014874:Water Pollutants, Chemical / Q000009:adverse effects
chemical_list: D001152:Arsenicals; D002619:Chemical Warfare Agents; D014874:Water Pollutants, Chemical; C493087:diphenylarsinic acid