dystonia

dystonia /dys·to·nia/ (-to´ne-ah) dyskinetic movements due to disordered tonicity of muscle.dyston´ic

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dystonia musculo´rum defor´mans  a hereditary disorder marked by involuntary, irregular, clonic contortions of the muscles of the trunk and limbs, which twist the body forward and sideways grotesquely.

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dys·to·ni·a (ds-tn-)

n.

Abnormal tonicity of tissue.

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dys·tonic (-tnk) adj.

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Dystonia

A movement disorder characterized by sustained muscle contractions that result in writhing or twisting movements and unsual body postures.

Mentioned in: Huntington Disease, Schizophrenia

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dystonia

[distō′nē·ə]

Etymology: Gk, dys + tonos, tone

any impairment of muscle tone. The condition commonly involves the head, neck, and tongue and often occurs as an adverse effect of a medication.

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dystonia (distō´nē),

n a disorder or lack of tonicity.

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dystonia

abnormality of muscular tonus.

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dystonia

Neurology Involuntary, often acute movement and prolonged contraction of one or more muscles, resulting in twisting body motions, tremor, and abnormal posture Etiology Inherited, ↑ during voluntary movement, nervousness, and emotional stress; dystonias may affect the extrapyramidal system–despite lack of demonstrable lesions, task specific–eg, writer's cramp or associated with medications–especially antipsychotics or disease–eg, a form of lung cancer Location Tongue, jaw, eyes, neck, trunk, extremities, occasionally the whole body Management Dopamine, sedatives–benzodiazepines–eg diazepam, anticholinergics–eg, trihexyphenidyl, benztropine–which cause dry mouth, mydriasis, urinary retention, and visual hallucinations; surgery. See Cranial dystonia, Dopa-responsive dystonia, Focal dystonia, Idiopathic torsion dystonia, Oromandibular dystonia, Segawa's dystonia, Torsion dystonia.