Neurogenic diabetes insipidus in a child with fatal Coxsackie virus B1 encephalitis.

A 5 year-old boy presented with fever, sore throat, diarrhea, and general soreness which evolved into encephalitis. His cerebrospinal fluid showed a cell count of 3 mononuclear cells/microliters, protein 2800 mg/l, and growth of Coxsackie virus B1. Cardiorespiratory arrest was noted after a convulsion and infusion of diazepam. Although he was immediately resuscitated, he remained unconscious with a modified Glasgow coma score of 4 or 3. He developed neurogenic diabetes insipidus 169 hours after the convulsion and died the next day. We conclude that although Coxsackie virus infection is usually benign it may become overwhelming and be complicated with neurogenic diabetes insipidus. It is important to recognize this potential sequel by regularly monitoring weight, intake and output, plasma sodium level, and urine specific gravity.