chapter  16
6 Pages

Narcolepsy and idiopathic hypersomnia

WithMichel Billiard

Narcolepsy includes two phenotypes: narcolepsy with cataplexy, and narcolepsy without cataplexy.1 Narcolepsy with cataplexy is characterized by excessive daytime sleepiness and cataplexy, also with auxiliary symptoms referred to as hypnogogic hallucinations, sleep paralysis and disturbed nocturnal sleep, whereas narcolepsy without cataplexy is characterized by the same symptoms except cataplexy.