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Myoclonus
- See Also
- Movement Disorder
- Definition
- Brief, sudden onset, non-rhythmic, involuntary, shock-like mucle jerking
- Causes
- Myoclonic Epilepsy
- Biological Neurotoxin Exposure
- Anoxia
- Creutzfeldt-Jacob Disease
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| Definition (MSH) | Involuntary shock-like contractions, irregular in rhythm and amplitude, followed by relaxation, of a muscle or a group of muscles. This condition may be a feature of some CENTRAL NERVOUS SYSTEM DISEASES; (e.g., EPILEPSY, MYOCLONIC). Nocturnal myoclonus is the principal feature of the NOCTURNAL MYOCLONUS SYNDROME. (From Adams et al., Principles of Neurology, 6th ed, pp102-3). |
| Definition (CSP) | shock-like contraction of a portion of a muscle, an entire muscle, or a group of muscles; may be part of a disease process or a normal physiological response. |
| Concepts | Sign or Symptom (T184)
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| ICD9 | 333.2 |
| English | Disorder characterised by myoclonus, Disorder characterized by myoclonus, Myoclonic disorder, Myoclonic Jerk, Myoclonic Jerking, Myoclonic jerks, Myoclonus, Myoclonus disorder, Myoclonus disorder &/or observation |
| Spanish | mioclono, trastorno caracterizado por mioclonos, trastorno mioclónico, trastorno mioclonico |
| Credits | Derived from the NIH UMLS (Unified Medical Language System)
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