Background: About 90% of type 2 diabetic patients are obese or overweight. The obvious clinical improvement observed with surgeries, such as Roux-en-Y gastric bypass, has opened space for research by different factors than only weight loss, as responsible for the return to euglycemia and reduction of medication use.
Aim: To evaluate the efficacy and safety of surgical treatment of diabetes in obese patients with BMI above 35 kg/m2 underwent to gastric bypass, for the control of diabetes, weight loss, improvement of laboratory findings and complications of diabetes.