《英文msh詞典》Periodic Hypersomnia
[入口詞] Periodic Hypersomnia
[主題詞] Kleine-Levin Syndrome
[中文釋義] 周期性睡眠過度
[英文釋義] A rare condition characterized by recurrent hypersomnias associated with hyperphagia,occurring primarily in males in the second to third decade of life. Clinical features include mental confusion,excessive sleep requirements (approximately 18 hours per day),restlessness,and in some cases hallucinations. Episodes have a duration of days to weeks,and may recur several times per year. This condition may resolve spontaneously over several years. (From Adams,et al.,Principles of Neurology,6th ed,p569)