Dance of the sugar: two case reports of chorea associated with nonketotic hyperglycemia

Pereira, Rafaela C.; Emidio, Fábio Caleça; Dias, Ângelo; Saez, Rosário Blanco; Shamasna, Motasem; Pestana, Joana

http://hdl.handle.net/10400.1/26570

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Abstract(s)

Hyperglycemia-induced chorea/ballism is a rare clinical entity that often occurs in the setting of nonketotic hyperglycemia due to poor glycemic control in elderly patients with a diagnosis of type 2 diabetes mellitus (DM). This condition is typically characterized by hemichorea/hemiballism and unique brain imaging findings in the contralateral basal ganglia. Treatment involves the correction of blood glucose, and most cases resolve without additional therapy. Here we report two cases of this condition in which patients with type 2 DM presented with nonketotic hyperglycemia and typical neuroimaging findings. Although rare, clinicians should be aware of this condition in patients with diabetes who present with sudden abnormal movements since its prompt diagnosis and treatment often lead to a favorable outcome.