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Abnormal tonicity of muscle, characterized by prolonged, repetitive muscle contractions that may cause twisting or jerking movements of the body or a body part.

dys·ton′ic (-tŏn′ĭk) adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Pathology) med relating to or affected by dystonia
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
Acute dystonic reactions, akathisia, or drug-induced tremors are not rare in patients who are receiving treatment for migraine that includes phenothiazines or neuroleptic drugs for migraine-associated nausea or pain.
"He has dystonic cerebral palsy and he's tube fed and a wheelchair user.
The dysfunction of basal ganglia has traditionally been regarded as the main cause of many dystonic forms, but an increasing evident finding suggests that a network of additional cortical and subcortical structures may be involved (6).
Occasionally both sides of the body would be involved (quadriplegia) and dystonic hand movements were reported.
These symptoms commonly include tachycardia, tachypnea, hypertension, irritability, hyperthermia, diaphoresis, and dystonic posturing.
The pain area roughly corresponded to C5-7 dermatome, and the left-sided bradykinesia and rigidity were prominent during the "off-period", but dystonic posture or dyskinesia were not observed.
His brief seizures like faciobrachial dystonic seizures and cognitive dysfunction were also reported during his clinical follow-up in our clinic.
In addition, our patient had dyskinesia and dystonic movements, which were not known for biallelic mutations.
(34) The clinical features started in childhood and showed dystonic movement and dystonic posture in both cases (Fig.
In psychiatric patients, documentation of TMJ dislocation exists in literature and may cause the following orofacial dystonic reactions, which are drug induced in nature and frequently the use of dopaminergic agents are considered the main cause.
Beneath the seemingly indefensible wall of rituals, excuses, and defensiveness is a very different (dystonic) view of self.
(9) It has been suggested that an early dystonic movement may cause stress-induced memory consolidation via activation of the basolateral amygdala.