Sleeve gastrectomy with duodenal transit bipartition combines two surgical concepts:
gastric metabolic restriction
intestinal metabolic stimulation
Surgical Concept
This procedure preserves the pylorus and maintains duodenal continuity.
Unlike classical duodenal switch, it does not exclude the duodenum.
Technical Features
In many models:
duodenoileal anastomosis ≈ 300 cm from ileocecal valve
anastomosis diameter ≈ 4–4.5 cm
Advantages
Preserved physiological digestion
Reduced malabsorption
Enhanced incretin stimulation
