Kleine-Levin Syndrome or KLS (also known as Sleeping Beauty Syndrome)

a neurological disorder characterized by recurring periods of excessive amounts of sleeping and eating.

Manifestations:

  • Hypersomnia, patients may spend 18 hours a day asleep.
  • altered mental state during the episode.
  • difficult to arouse from this sleep
  • irritability
  • aggressive when prevented from sleeping.
  • Cognitive impairment
  • confusion
  • Amnesia for the event
  • Hallucination
  • Delusions or experience a dream-like state
  • changes in eating behavior during episodes, exhibiting megaphagia little discrimination in consumption of excessive amounts of food.

 

Etiology:
unknown
Prognosis:
life-long, acute and chronic episodes
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