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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 ]
Jankovic has contributed to classifications, characterization, and therapeutic guidelines of various movement disorders. His research on drugs for parkinsonian disorders and hyperkinetic movement disorders, including botulinum toxin [2] and tetrabenazine, [3] has led to their approval by the United States Food and Drug Administration.
A movement disorder similar to PKD was first mentioned in research literature in 1940 by Mount and Reback. They described a disorder consisting of attacks of involuntary movements but unlike PKD, the attacks lasted minutes to hours and were found to be caused by alcohol or caffeine intake. [15] They named it paroxysmal dystonic choreoathetosis.
Dyskinesia can be anything from a slight tremor of the hands to an uncontrollable movement of the upper body or lower extremities. Discoordination can also occur internally especially with the respiratory muscles and it often goes unrecognized. [3] Dyskinesia is a symptom of several medical disorders that are distinguished by their underlying ...
A Parkinson's Foundation Center of Excellence is a medical center with a specialized team of neurologists, movement disorder specialists, physical therapists, occupational therapists, mental health professionals and others who are up to date on the latest Parkinson's medications, therapies and research.
Subsets of functional neurological disorders include functional neurologic symptom disorder (FNsD) (conversion disorder), functional movement disorder, and functional seizures. The diagnosis is made based on positive signs and symptoms in the history and examination during consultation of a neurologist. [3]
Paroxysmal nonkinesigenic dyskinesia (PNKD) is an episodic movement disorder first described by Mount and Reback in 1940 under the name "Familial paroxysmal choreoathetosis". [2] It is a rare hereditary disease that affects various muscular and nervous systems in the body, passing to roughly fifty percent of the offspring.
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.