title: Case of a non-24 h sleep-wake syndrome patient improved by phototherapy.
abstract: Polysomnography (PSG) and body temperature were examined in a patient with non-24 h sleep-wake syndrome who responded to phototherapy. The patient was a 17-year-old male who had been suffering from a free-running sleep-wake rhythm for 2 months. Phototherapy was administered to the patient while he was admitted to our hospital. This treatment immediately changed the free-running sleep-wake and body temperature rhythm of the patient to the environmental 24-h rhythm. On a polysomnography, total sleep time and stages 1 and 2 and REM sleep were decreased, and percentage stage 3+4 was increased by phototherapy. The time of minimum body temperature (mBT) was located at the latter half of the sleep phase through the clinical course of the patient.
authors.affiliation: Department of Psychiatry, National Center Hospital for Mental, Nervous and Muscular Disorders, National Center of Neurology and Psychiatry, Kodaira, Tokyo, Japan. watanabe@nchpmusashi.gr.jp
authors.forename: T
authors.initials: T
authors.lastname: Watanabe
authors.forename: N
authors.initials: N
authors.lastname: Kajimura
authors.forename: M
authors.initials: M
authors.lastname: Kato
authors.forename: M
authors.initials: M
authors.lastname: Sekimoto
authors.forename: T
authors.initials: T
authors.lastname: Hori
authors.forename: K
authors.initials: K
authors.lastname: Takahashi
mesh_terms: D000293:Adolescent; D001833:Body Temperature Regulation; D006801:Humans; D008297:Male; D010789:Phototherapy; D017286:Polysomnography; D020178:Sleep Disorders, Circadian Rhythm / Q000175:diagnosis / Q000628:therapy*; D016896:Treatment Outcome