Some observations on
hemiballismus. Neurology 1960;10:619-622.
The second most common cause of hemiballismus following stroke is known to be hyperglycemia (2).
However, hemiballismus may continue for more than three months in 20% of the patients (2).
Hyperglycemia-induced Hemiballismus Hemichorea: A Case Report and Brief Review of the literature.
However, she developed severe truncal ataxia, upper extremity tremors (resting and intentional), athetosis,
hemiballismus, dysmetria, and dystonia.
Zhang et al., "Neuronal activity in the basal ganglia in patients with generalized dystonia and
hemiballismus," Annals of Neurology, vol.
Hemiballismus, involuntary movements of a sudden, violent and flailing nature are rarely seen.
Olanzapine has been used in various movement disorders: choreic syndromes [Huntington's disease (HD), hemichorea] (1,4,5,6,7), tardive dystonia (8,9,10), tardive dyskinesia (9,11,12), hemiballismus (13), dystonia (14,15), and essential tremor (16,17).
Patient distribution was as follows: Seven patients had chorea due to HD, 1 had tardive dystonia, 1 had oromandibular dystonia (OMD), 1 had post-ischemic hemidystonia, 1 had hemiballismus, and 1 patient had post-traumatic rubral tremor.
Furthermore, lesions in the STN may result in
hemiballismus; DBS should be used for this target.
Hemiballismus may also be seen in a patient with basal ganglia infarct.[4]