Euglycemic diabetic ketoacidosis caused by canagliflozin: a case report
Abstract
Background Diabetic ketoacidosis (DKA) is seen relatively frequently in the emergency department (ED). DKA is characterized by hyperglycemia, acidosis, and ketonemia, and sodium glucose transporter 2 inhibitors (SGLT2i) represent a new diabetes medication that has been associated with euglycemic DKA (eu-DKA). Case presentation A 71-year-old female who was being treated for type 2 diabetes with canagliflozin, metformin, and saxagliptin orally presented to the ED for evaluation of reduced oral intake, malaise, nausea, and abdominal pain. Although her blood glucose was not severely elevated (259 mg/dL), there was notable ketoacidosis (pH 6.89; CO 2 , 11.4 mmHg; HCO 3 , 1.9 mEq/L; base excess, − 31.3 mmol/L; 3-hydroxybutyric acid > 10,000 μmol/L) was observed. The uncontrolled acidosis improved following 3 days of continuous renal replacement therapy, but elevated urinary glucose continued for more than 10 days. Ringer’s lactated fluid supplementation was continued for management of polyurea and glucosuria. Urinary glucose turned negative on day 16, and there was improvement in the patient’s overall state; hence, she was discharged on day 18. Conclusion Although it is difficult to diagnose eu-DKA because of the absence of substantial blood glucose abnormalities in the ED, there is a need to consider eu-DKA when evaluating acidosis in a patient treated with SGLT2i. Moreover, even after discontinuing the SGLT2i, attention should be given to the possibility of continuing…
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