kleine-levin syndrome (kls) is a rare syndrome characterized by periodic hypersomnia, hyperphagia, behavioral disturbances, and in some instances hypersexuality. this report depicts a17-year-old boy with kls. he has experienced long periods of hypersomnia, sometimes up to 40 days. during these periods he was impatient, aggressive, depersonalized, suffering from hyperphagia, and amnesia. he did ...

kleine-levin syndrome is characterized as a periodic hypersomnia crisis as well as dietary and variable significant psychic symptoms. this report describes the finding on an evaluation of a 15- year- old girl with kls. she had amnesia to her episodes. all episodes were correlated with menstrual period.polysomnographic finding of this patient was normal with 5 sleep cycles in sleep architecture ...

Hypersomnia, a complaint of excessive daytime sleep or sleepiness, affects 4% to 6% of the population, with an impact on the everyday life of the patient Methodological tools to explore sleep and wakefulness (interview, questionnaires, sleep diary, polysomnography, Multiple Sleep Latency Test, Maintenance of Wakefulness Test) and psychomotor tests (for example, psychomotor vigilance task and Ox...

A case of Kleine-Levin syndrome, with chronic severe periodic hypersomnia is described in a 17-year-old female. The first episode started when she was 15 years old. The episodes were characterized by periodic hypersomnia accompanied by hyperphagia, lasting 5 days, and repeating at 28 to 60 day intervals. The severity of hypersomnia prevented her from attending school activities. Outside the hyp...

Two non-obese patients suffering from hypersomnia with periodic breathing, who presented predominantly obstructive apnoea persisting throughout sleep, underwent tracheotomy with placement of a permanent tracheal cannula. Before tracheostomy there was a serious state of alveolar hypoventilation with a marked rise in pulmonary arterial pressure which appeared during sleep. After tracheostomy brea...

R ecurrent hypersomnia is a periodic sleep disorder which includes the Kleine-Levine Syndrome and its incomplete variants. The Kleine-Levin syndrome is characterized by recurrent episodes of hypersomnia associated with binge eating and hypersexuality. It usually occurs in adolescent males, but may occur in middle-age females. The episodes generally last from several days to several weeks and us...

INTRODUCTION Kleine-Levin syndrome (KLS) is a rare syndrome of periodic hypersomnia and behavioral and cognitive symptoms based on clinical criteria. In the setting of differential diagnosis of hypersomnia disorders, an objective diagnostic aid is desirable. A promising modality is single photon emission computed tomography (SPECT). As intraepisodal investigations are difficult to perform, an i...