A randomized trial of 60 patients with type 2 diabetes and obesity, published in the Lancet, revealed that diabetes remission rates were found to be significantly higher in the years following surgery, in comparison with conventional medical therapy.

The 2-year outcomes reported earlier had suggested that diabetes remission was attained in 75% of patients who underwent Roux-en-Y gastric bypass (RYGB) and 95% of patients who underwent biliopancreatic diversion (BPD). Diabetes remission was characterized by an HbA1c below 6.5% and fasting glucose less than 100 mg/dL (5.55 mmol/L) in the absence of ongoing pharmacological treatment for at least a year.

The 10-year outcomes revealed that 50% of the patients who underwent BPD could maintain diabetes remission by year 10. Additionally, 25% of those who underwent RYGB could maintain their remission at 10 years… (Medpage Today)