Clonous
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- Clonus is a series of involuntary, rhythmic, muscular contractions and relaxations.
- Clonus is a sign of certain neurological conditions, particularly associated with UMNS involving descending motor pathways
- It is mostly accompanied by spasticity
- Range of frequency is from 3 to 8 Hz on average, and may last a few seconds to several minutes depending on the patient’s condition.
Related entities
Fasciculations are spontaneous twitches usually caused by LMNS. But clonus causes large motions that are usually initiated by a reflex.
Myoclonous: It differs from clonus, because of its irregularity.
Related disease
- CP
- Stroke
- MS
- Spinal cord damage
- Hepatic encephalopathy
- Serotonin syndrome