Clinical symptoms of narcolepsy

What are the clinical symptoms suggestive of narcolepsy? 

Narcolepsy is a chronic disorder of hypersomnia in which there are sudden onsets of sleep episodes or “sleep attacks” that can be associated with

  • cataplexy
  • sleep paralysis
  • hypnagogic/hypnopompic hallucinations
  • disrupted nighttime sleep.

The diagnosis of narcolepsy (type 1 and type 2) should be confirmed whenever possible by a PSG followed by an MSLT.

In addition, the hypersomnia is not better explained by another sleep disorder, medical or neurologic disorder, psychiatric disorder, medication use, or substance abuse.


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