II. Pathophysiology

  1. Extension of the normal hypotonia that occurrs during REM Sleep
  2. May occur in normal patients, as well as in sleep disorders such as Narcolepsy

III. Findings

  1. Transient, generalized inability to move or speak during sleep-wake transition

IV. Associated Conditions

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Ontology: Sleep Paralysis (C0456511)

Definition (MSH) A common condition characterized by transient partial or total paralysis of skeletal muscles and areflexia that occurs upon awakening from sleep or less often while falling asleep. Stimuli such as touch or sound may terminate the episode, which usually has a duration of seconds to minutes. This condition may occur in normal subjects or be associated with NARCOLEPSY; CATAPLEXY; and hypnagogic HALLUCINATIONS. The pathophysiology of this condition is closely related to the normal hypotonia that occur during REM sleep. (From Adv Neurol 1995;67:245-271)
Concepts Pathologic Function (T046)
MSH D020188
SnomedCT 277180005
Italian Paralisi del sonno, Paralisi da sonno
English Sleep Paralysis, Paralysis, Sleep, Sleep Paralysis [Disease/Finding], paralysis sleep, sleep paralysis disorder, paralysis sleeping, sleep paralysis, Sleep paralysis, Sleep paralysis (disorder)
Japanese 睡眠時麻痺, スイミンジマヒ, 睡眠性麻痺, 覚せい時麻痺, 入眠前麻痺, 半覚せい時麻痺, 半覚醒時麻痺, 覚醒時麻痺, 麻痺-入眠前, 麻痺-半覚せい時, 麻痺-半覚醒時, 麻痺-睡眠性, 麻痺-覚せい時, 麻痺-覚醒時
Swedish Sömnparalys
Czech spánková paralýza, spánková obrna, Spánková obrna
Finnish Unihalvaus
Russian PARALICH UTRENNII, PARALICH PRI PROBUZHDENII, ПАРАЛИЧ ПРИ ПРОБУЖДЕНИИ, ПАРАЛИЧ УТРЕННИЙ
Polish Katapleksja we śnie, Porażenie senne
Hungarian Alvási bénulás
Spanish parálisis del sueño (trastorno), parálisis del sueño, Parálisis del sueño, Parálisis del Sueño
Portuguese Paralisia no sono, Paralisia do Sono
Dutch slaap paralyse, Paralyse, slaap-, Slaapparalyse
French Paralysie pendant le sommeil, Paralysie du sommeil, Paralysies du sommeil
German Schlaflaehmung, Paralyse, Schlaf-, Schlaflähmung