Hemiballismus is a very rare movement disorder, classified by a decrease in activity of the subthalamic nucleus of the basal ganglia, resulting in decreased suppression of undesired movements. It is 500 times more rare than Parkinson's disease. Its effects can sometimes be severe enough to prevent patients from being able to perform daily functions. It is usually associated with structural brain lesions but can occur with metabolic abnormalities. The symptoms can also decrease while the patient is asleep, unlike some movement disorders.

Read more about Hemiballismus:  General Definition, Anatomy, History, Causes, Treatments, Prognosis, Further Questions, Conclusion

Other articles related to "hemiballismus":

Hemiballismus - Conclusion
... Hemiballismus is a rare movement disorder that is caused primarily by damage to various areas in the basal ganglia ...
Overactive - Classification - Hemiballismus
... Typically caused by damage to the subthalamic nucleus or nuclei, hemiballismus movements are nonrhythmic, rapid, nonsuppressible, and violent ...
Overactive - Management - Athetosis, Chorea and Hemiballismus
... and perphenazine which block dopamine receptors these are the first line of treatment for hemiballismus ... presynaptic catecholamine and serotonin stores both of these drugs treat hemiballismus successfully but may cause depression, hypotension and parkinsonism ...