myoclonus


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Related to myoclonus: myoclonus epilepsy

myoclonus

[mī′äk·lə·nəs]
(medicine)
Clonic muscle spasm.
Any disorder characterized by scattered, irregular, arrhythmic muscle spasms.
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As reported previously in the 52 h fasted rats (2), repetitive myoclonus of hindlimbs occurred starting before or after food intake in animals deprived of food for 3 or 24 h (Table 2).
Summary of studies that estimated knee extension angle in healthy adults Study Evaluation Endpoint n method 61 male Current study AKE Knee flexion until the myoclonus stops 62 female 21 male Kuilart et al.
We aimed to evaluate and compare hemodynamic changes in controlled hypertensive patients during induction of anesthesia using propofol or etomidate as an induction agent and to study the incidence of adverse effects such as myoclonus, nausea, pain during injection and thrombophlebitis.
A probable diagnosis is established in the presence of rapidly progressive dementia and two of the following: akinetic mutism, myoclonus, visual/cerebellar signs, pyramidal/extrapyramidal signs; plus one of the tests: EEG with periodic sharp-wave complexes, positive 14-3-3, or MRI with high signal abnormalities in caudate/putamen on DWI or FLAIR; and with routine investigation not suggestive of alternative conditions (5).
By definition, patients develop encephalo-pathy, which can be associated with seizures, myoclonus, hallucinations, and stroke-like episodes with normal or non-specific CSF and brain MRI abnormalities3.
A temporal association was demonstrated between the episodes of myoclonus and stressors in the life-chart of analysis.
The Dystonia Medical Research Foundation define myoclonus dystonia as a genetic condition that causes sudden, brief, shock-like jerks, that most frequently affects the central part of the body, including the shoulders, arms, neck, and torso.
Hyperkinetic movement disorders are characterized by excessive and abnormal involuntary movements and include myoclonus, dystonia, and chorea.
There were no fasciculations or myoclonus. Reflexes and sensation were intact.