Endocrine practice : official journal of the American College of Endocrinology and the American Association of Clinical Endocrinologists
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To determine the implications of the presence of hyperglycemia after a cardiac surgical procedure in patients with no history of diabetes mellitus (DM). ⋯ Hyperglycemia after a cardiac surgical procedure implies a high risk of persistent glucose dysregulation. Preoperative FPG levels correlated better with 2-hour OGTT results than did the 6-week postoperative FPG values, but both were insensitive markers for diagnosing type 2 DM in these patients. In our cohort, hemoglobin A1c was not predictive of abnormalities of glucose metabolism. Our data support the need for performing a postoperative OGTT in patients with no known history of DM but the presence of hyperglycemia after a cardiac operation.