The study involved the examination of a number of bariatric surgery cases from the Cleveland Clinic. Overweight patients with type 1 who had exhibited poor diabetes management experienced a reduction in H1c from 10% to 8.9% P=0.039, as well as a reduction in daily insulin requirements from 0.74 to 0.40 U/kg/day, P=0.004 following bariatric surgery.
This new study sheds light on how bariatric surgery can help improve diabetic conditions in type 1 patients. Up until now, bariatric surgery has been highly recommended for overweight and obese individuals with type 2 diabetes, since the surgery can often result in the complete reversal of type 2 diabetes. Previously, the effects of weight-loss surgery on people with type 1 diabetes has remained largely unexplored.
All patients involved in the study had suffered from type 1 diabetes for an average of 22 years, and had an average body mass index (BMI) of 42. At the 3-year mark following weight-loss surgery, most patients were able to lose over 60 percent of their body weight and achieve an average BMI of 27.
The study authors speculate that the reduction in H1c levels and insulin requirements could be partly attributed to smaller portion sizes, however, additional studies would be needed to confirm this theory.