The second most common cause of hemiballismus
following stroke is known to be hyperglycemia (2).
Brain injury following NMS can cause truncal ataxia, limb ataxia, athetosis, hemiballismus
, dysmetria, dysarthria, sensory function problems, balance problems, persistent amnesia, difficulties comprehending commands, attention problems, and electroencephalograph or MRI abnormalities.
, involuntary movements of a sudden, violent and flailing nature are rarely seen.
Since transient "positive" local signs are often encountered as a manifestation of neurologic events associated with a small acute hemorrhage, as illustrated by hemiballismus
associated with hemorrhage in the subthalamic nucleus, this case provides substantial support for the concept that central tinnitus might indeed represent a pathologic activation of neural networks of nonspecific auditory perception.
Parkinsonism, dystonia, hemiballismus
, choreoathetosis, and oculogyric crises occur in 5-10% of patients with idiopathic hypoparathyroidism17, but are less common in patients with surgical hypoparathyroidism or other causes of hypocalcemia18.