Abstract

Diabetic ketoacidosis is defined as hyperglycemia >250mg/dL with metabolic acidosis of arterial pH <7.3, serum bicarbonate <18 mEq/L with positive urine and serum ketones and an anion gap >10. Euglycemic ketoacidosis has been reported in patients with type 2 diabetes and in patients with type 1 diabetes. However, as a surgical complication, euglycemic ketoacidosis has not been reported. We report 2 cases from 2 teaching tertiary care centers of patients with type 2 diabetes who developed high-gap ketoacidosis in an intensive care unit while recovering from emergent abdominal surgery. Both patients developed altered mental status, metabolic acidosis with a bicarbonate level as low as 14mEq/L, and an anion gap > 18, without hyperglycemia. Both patients had β-hydroxybutyrate levels > 5mmol/L.

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