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Myoclonus
- See Also
- Definition
- Brief, sudden onset, non-rhythmic, involuntary, shock-like mucle jerking
- Causes
- Myoclonic Epilepsy
- Biological Neurotoxin Exposure
- Anoxia
- Creutzfeldt-Jacob Disease
Myoclonus (C0027066) | |
|---|---|
| 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) |
| ICD9 | 333.2 |
| MSH | D009207 |
| English | Disorder characterised by myoclonus, Disorder characterized by myoclonus, Jerks - myoclonic, Myoclonic disorder, Myoclonic Jerk, Myoclonic Jerking, Myoclonic jerks, Myoclonus, Myoclonus disorder, Myoclonus disorder &/or observation |
| Spanish | mioclono, trastorno caracterizado por mioclonos, trastorno mioclonico |
| Parent Concepts | Degenerative Diseases, Central Nervous System (C0270715), Extrapyramidal Disorders (C0015371), Myopathy (C0026848), Brain Diseases (C0006111), Movement Disorders (C0026650), MOTOR NEURON/PERIPHERAL MOTOR (C0549641), Other and unspecified extrapyramidal diseases and abnormal movement disorders (C0154678), Dyskinetic syndrome (C0013384), Neurological observations (C0422837), Myoclonus (C0027066), Involuntary Movements (C0427086), Ambiguous concept (C1274012) |
| Sources | AOD, CSP, CST, DXP, ICD9CM, LCH, MSH, NCI, NDFRT, OMIM, SCTSPA, SNOMEDCT Derived from the NIH UMLS (Unified Medical Language System) |
