At present, the prevalence of type 2 diabetes mellitus (DM-2) is steadily increasing. Surgical methods of treatment (restriction and shunting operations) occupy a leading position in the treatment and correction of this pathology due to the highest metabolic efficiency. Each of the existing shunting operations (gastric gastrointestinal, biliopanсreatic bypass (PBS)), in turn, is used in various modifications. Among the operations of BPS are known modifications of Scopinaro, modification of Hess-Marceau and SADI appeared in recent years (duode-iliac bypass with gastric resection and one anastomosis).