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TAMAR LAPIDOTH, MD; EITHAN GALUN, MD
JERUSALEM,ISRAEL

Arch Intern Med. 1989;149(8):1905.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

To the Editor.—Choreoathetotic movements are sometimes caused by metabolic disorders, such as hypernatremia. The following case suggests that hyperglycemia might have caused the chorea.

Report of a Case.—A 70-year-old woman presented with bilateral involuntary choreoathetotic movements of the face and limbs, which started 3 days prior to admission. She has also noticed polydipsia and polyuria for the last 4 days. Results of the rest of the physical examination were normal. Results of laboratory tests disclosed the following values: blood glucose, 22 mmol/L; sodium, 132 mmol/L; potassium, 3.8 mmol/L; and urea, 6 mmol/L (plasma osmolality of 300 mOsm/kg). The blood pH was 7.46 and there were no ketones in the urine. Results of a computed tomographic scan of the brain were normal. The patient was treated with insulin. The following morning, the blood glucose level was 4 mmol/L, and the involuntary movements disappeared, but returned when the blood . . . [Full Text PDF of this Article]

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