Association Between Preoperative Diabetes Control and Postoperative Adverse Events Among Veterans Health Administration Patients With Diabetes Who Underwent Elective Ambulatory Hernia Surgery

Abstract
Hernia surgery is commonly performed with a low rate of postoperative adverse events (AEs). Risk of complications (eg, infection, bleeding, and superficial wound dehiscence) is higher for patients with type 1 or 2 diabetes,1 and several academic societies recommend testing glycemic control preoperatively, including the American Diabetes Association,2 the Society for Ambulatory Anesthesia,3 and the Endocrine Society.4 However, there is limited evidence that keeping within recommended blood glucose (BG) concentrations of 100 to 180 mg/dL (to convert to millimoles per liter, multiply by 0.0555) is associated with improved outcomes in ambulatory surgery. Our objective was to test the hypothesis that poor same-day preoperative glycemic control was associated with higher odds of postoperative AEs among Veterans Health Administration (VHA) patients with diabetes undergoing ambulatory hernia surgery.