myoclonus

(redirected from Myoclonic jerk)
Also found in: Dictionary, Thesaurus, Medical.
Related to Myoclonic jerk: Hypnic jerk

myoclonus

[mī′äk·lə·nəs]
(medicine)
Clonic muscle spasm.
Any disorder characterized by scattered, irregular, arrhythmic muscle spasms.
Mentioned in ?
References in periodicals archive ?
The child was discharged 2 days after admission, having had no more myoclonic jerks.
Signal changes in cerebral white matter (Pattern 7) are seen in 4 cases of Wilson's, 2 cases of ataxia, 1 case of dystonia, myoclonic jerks and atypical Parkinson's disease.
12] injections, the patient showed marked improvement in social interaction, with gradual reduction in tremors and myoclonic jerks.
4 JME begins in the second decade of life with myoclonic jerks (MJ) and in most of patients generalized tonic clonic seizures (GTCS) are found.
Acute phase: A more rapidly progressive phase characterized by severe confusion, hallucinations, ataxia, dysarthria, myoclonic jerks and rarely seizures.
Directed questioning is essential to reveal unreported or unrecognised seizures such as myoclonic jerks and absences.
Myoclonic jerks and involuntary movements were noted in 5 (0.
At the other extreme are idiopathic generalized epilepsies with variable phenotypes--the most common being juvenile myoclonic epilepsy (JME)--which contribute to 5%-11% of all epilepsies and are characterized by myoclonic jerks, generalized tonic-clonic seizures (GTCSs), and absence seizures with normal cognition (Commission on Classification and Terminology of the International League Against Epilepsy, 1989; Panayiotopoulos, Tahan, & Obeid, 1991).
Over the years Anna has suffered myoclonic jerks, which caused her right arm to jerk up on its own, and absent seizures, periods which were similar to day dreaming.