Hyperkinetic Movement Disorder: Difference between revisions
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== Introduction == | == Introduction == | ||
'''Hyperkinetic movement disorders''' also referred to as '''Dyskinesias''' are characterized by abnormal, often repetitive, involuntary movements overlapped to normal motor activity. Its 5 major types are [[Tremor|Tremors]], [[Chorea]], [[Dystonia]], Myoclonus and Tics. | '''Hyperkinetic movement disorders''' also referred to as '''Dyskinesias''' are characterized by abnormal, often repetitive, involuntary movements overlapped to normal motor activity. Its 5 major types are [[Tremor|Tremors]], [[Chorea]], [[Dystonia]], [[Myoclonus]] and Tics. | ||
== Etiology == | == Etiology == | ||
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Introduction[edit | edit source]
Hyperkinetic movement disorders also referred to as Dyskinesias are characterized by abnormal, often repetitive, involuntary movements overlapped to normal motor activity. Its 5 major types are Tremors, Chorea, Dystonia, Myoclonus and Tics.
Etiology[edit | edit source]
Common etiologies seen in this condition
- Genetic abnormalities
- Neurodegenerative diseases
- Structural lesions
- Infection
- Drugs
- Psychogenic problems
Pathophysiology[edit | edit source]
Among all HMDs there appears to be decreased neural firing rates in the inhibitory output nuclei of the basal ganglia leading to a subsequent disinhibition of thalamocortical activity. Sensory abnormalities may also have a role.
