Abstract:

(1) yellow-white borderline formed by the adhesion of the small mesentery root and the posterior peritoneum in the right iliac fossa were opened, from which the Told’s space was entered. The space was expanded to the cephalic liver-colonic ligament, behind the superior mesenteric vessels and the inferior branches, and to the prepancreatic space.(2)The ventral side of the mesentery was exposed, and the superior mesentery vein was fully exposed. The mesocolon was incised longitudinally in front of the vein, and the superior mesentery vein was dissected, which was through the right fusion space. Then the mesangial membrane and vascular root were separated successively, and the colonic vessels were ligated and severed along the right margin of the vein to the cephalic side. The gastric colonic trunk was ligated and the accessory right colonic vein was severed.(3)The gastrocolic ligaments were separated into the lesser omental sac. Separate the mesangium of stomach and mesocolon. The fusion space and the anterior pancreatic space are expanded, reaching the caudal space in front of the pancreas.(4)After complete dissociation, an end-to-side anastomosis of ileum and transverse colon was performed.

Key words: Colectomy, Laparoscopes, D3 lymph node dissection