Is glycosylated hemoglobin A1 c associated with increased risk for severe early postoperative complications in nondiabetics after laparoscopic gastric bypass?

Elevated HbA1 c levels in patients without pharmacologic treatment for diabetes undergoing laparoscopic gastric bypass surgery is associated with an increased risk for severe complications during the first 30 postoperative days. This is the case, even at levels not regarded as diagnostic for diabetes.