Kleine-Levin Syndrome
Synonyms
Familial Hibernation (Kleine-Levin) Syndrome
Familial Kleine Levin Syndrome
Familial Kleine-Levin Syndrome
Hibernation Syndrome, Kleine-Levin
Hypersomnia, Periodic
Kleine Levin Critchley Syndrome
Kleine Levin Hibernation Syndrome
Kleine Levin Syndrome
Kleine-Levin Hibernation Syndrome
Kleine-Levin Syndrome, Familial
Kleine-Levin-Critchley Syndrome
Periodic Hypersomnia
Periodic Hypersomnias
Syndrome, Familial Kleine-Levin
Syndrome, Kleine-Levin
Syndrome, Kleine-Levin Hibernation
Syndrome, Kleine-Levin-Critchley
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)