Abstract
Hyperglycemia rarely manifests as hemichorea-hemiballism (HH), which is characterized by simple partial motor seizures. One of the difficulties in the management of hyperglycemia-induced HH is the failure to recognize this entity due to its relatively uncommon presentation. We herein present a case series of hyperglycemia-associated dyskinesias, highlighting the different possible clinical presentations of this entity. Both hyperglycemia and hyperosmolality are probable predisposing factors, while ketoacidosis has a protective role in preventing the dyskinesias. One of our patients had ketotic hyperglycemia leading to HH, a previously unreported finding. Early recognition of this entity is crucial as prompt glycemic control leads to the resolution of symptoms and signs.
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