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Chorea, or (rarely) choreia, (/ k ə ˈ r i ə /) is an abnormal involuntary movement disorder, characterized by quick movements of the hands or feet. It is one of a group of neurological disorders called dyskinesias. The term chorea is derived from Ancient Greek χορεία 'dance', as the movements of the body is comparable to dancing. The ...
Dyskinesia refers to a category of movement disorders that are characterized by involuntary muscle movements, [1] including movements similar to tics or chorea and diminished voluntary movements. [2] Dyskinesia can be anything from a slight tremor of the hands to an uncontrollable movement of the upper body or lower extremities.
Typical manifestations include pacing around, wringing of the hands, uncontrolled tongue movement, pulling off clothing and putting it back on, and other similar actions. [1] In more severe cases, the motions may become harmful to the individual, and may involve things such as ripping , tearing, or chewing at the skin around one's fingernails ...
Some examples of these types of involuntary movements include: [10] Grimacing; Tongue movements; Lip smacking; Lip puckering; Pursing of the lips; Excessive eye blinking; Rapid, involuntary movements of the limbs, torso, and fingers may also occur. [11] In some cases, an individual's legs can be so affected that walking becomes difficult or ...
The age at onset is between 1 and 20 years old. The attacks of involuntary movements last less than one minute and have a known trigger, usually a sudden voluntary movement. For example, if a PKD patient stands up or begins walking after being sedentary for a period of time, or a person goes from a walk to a run, it can trigger an attack.
Movement disorders are clinical syndromes with either an excess of movement or a paucity of voluntary and involuntary movements, unrelated to weakness or spasticity. [1] Movement disorders present with extrapyramidal symptoms and are caused by basal ganglia disease . [ 2 ]
This is characterized by a diminished ability for voluntary movements, as well as the presence of involuntary movements. The hands and upper body are the areas most likely to be affected by tremors and tics. In some cases, Parkinson's patients experience dyskinesia as a negative side effect of dopamine medications. [7] Dystonia
Myoclonus is defined as a sequence of repeated, often nonrhythmic, brief, shock-like jerks due to sudden involuntary contraction or relaxation of one or more muscles. These movements may be asynchronous, in which several muscles contract variably in time, synchronous, in which muscles contract simultaneously, or spreading, in which several ...
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