A case report of Klein-Levine syndrome with mental retardation
Klein-Levin Syndrome(KLS),also known as periodic excessive sleepiness,is characterized by recurrent severe sleepiness with cognitive,mental and behavioral abnormalities.In the early stage of the dis-ease,the interval is short and the number of repetitions is frequent.With the increase of age,the duration,severi-ty and frequency of the attacks all decrease or even no longer occur.This patient of KLS was studied.The clini-cal manifestations,examinations and treatment effects were analyzed,and relevant literature review was conducted.