Anesthetic Management of a Patient With Suspected Insulinoma Undergoing Cardiopulmonary Bypass for Left Atrial...

Perioperative hypoglycemia is associated with neurological complications, cognitive dysfunction, and increased mortality, highlighting the need for appropriate glycemic control. This case report describes a patient with suspected insulinoma and recurrent hypoglycemia, in whom a left atrial tumor was incidentally discovered and resected under cardiopulmonary bypass. Both hypoglycemia due to insulinoma and hyperglycemia related to surgery and cardiopulmonary bypass were considered. Stable glycemic control was achieved through blood glucose monitoring every 15 minutes and continuous infusion of 10% glucose. Although the outcome was favorable, individualized blood glucose management is essential during cardiac surgery for patients with suspected insulinoma.