title: Kleine-Levin syndrome: a unique cause of fatigue in an athlete.
abstract: Kleine-Levin syndrome (KLS) is a rare disorder characterised, most notably, by periodic episodes of hypersomnolence and hyperphagia. Associated features of the disorder include a lack of concentration, mood changes, and anxiety. Laboratory tests may show slight changes in the electroencephalogram. However, clinical presentation and laboratory tests are normal during asymptomatic intervals. KLS most often presents in adolescent males, with complete recovery by the 3rd to 4th decade of life. Possible precipitating factors include excessive workload, febrile illness, and respiratory infections. Presented is a classical case of KLS in an adolescent male athlete. The patient's history, complete laboratory results, and symptoms are discussed. Possible treatments for this disorder are also mentioned, along with diagnostic criteria.
authors.affiliation: Faculty of Medicine, University of British Columbia, 317-2194 Health Sciences Mall, Vancouver, BC V6T 1Z3, Canada. conklin@interchange.ubc.ca
authors.forename: C M J
authors.initials: CM
authors.lastname: Conklin
authors.forename: J E
authors.initials: JE
authors.lastname: Taunton
authors.forename: P
authors.initials: P
authors.lastname: McCrory
mesh_terms: D000293:Adolescent; D017668:Age of Onset; D005221:Fatigue / Q000209:etiology*; D006801:Humans; D017593:Kleine-Levin Syndrome / Q000150:complications* / Q000175:diagnosis; D008297:Male; D013177:Sports