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Cataplexy
- Epidemiology
- Possibly Hereditary
- Pathophysiology
- Episodic loss of motor and posture control
- Precipitated by laughter or strong emotion
- Unknown cause
- Signs
- Momentary loss voluntary motor power including speech
- No loss of consciousness
Cataplexy (C0007384) | |
|---|---|
| Definition (MSH) | A condition characterized by transient weakness or paralysis of somatic musculature triggered by an emotional stimulus or physical exertion. Cataplexy is frequently associated with NARCOLEPSY. During a cataplectic attack, there is a marked reduction in muscle tone similar to the normal physiologic hypotonia that accompanies rapid eye movement sleep (SLEEP, REM). (From Adams et al., Principles of Neurology, 6th ed, p396) |
| Definition (CSP) | transient attack of weakness precipitated by emotional excitement; patient falls as if struck down. |
| Concepts | Disease or Syndrome (T047) |
| MSH | D002385 |
| English | Cataplexy, Henneberg Syndrome, Tonelessness Syndrome, Tonelessness Syndromes |
| Spanish | cataplexia |
| Parent Concepts | CNS disorder (C0007682), Narcolepsy (C0027404), Brain Diseases (C0006111) |
| Sources | COSTAR, CSP, CST, DXP, MSH, NDFRT, OMIM, QMR, SCTSPA, SNOMEDCT Derived from the NIH UMLS (Unified Medical Language System) |
