Objective:To summarize the experience of complete resection of the right mesogastrium in laparoscopic radical gas-tric cancer surgery.Methods:From Mar.2022 to Dec.2022,clinical data of 58 patients who underwent membrane anatomy-guided radi-cal distal gastrectomy and total gastrectomy under 3D laparoscopy were collected.In 42 cases the portal vein was exposed after resection of the duodenum,right mesogastrium was finally resected in front of the portal vein,and in 16 cases the portal vein was exposed before resection of the duodenum,the right mesogastrium was resected in front of the portal vein.The number of lymph nodes in the right meso-gastrium,postoperative complications and postoperative recovery were recorded.Results:The right mesogastrium was completely separa-ted and vessels were resected in all the 58 patients.The average number of lymph nodes dissected in the right mesogastrium was(1.2±0.5).The pathological examination results of the specimens showed that the lymph nodes in the right mesogastrium were negative.One case suffered from anastomotic bleeding and one case developed gastroparesis after surgery,both were cured and discharged after conser-vative treatment.Conclusions:After lifting the right mesogastrium from the back,the right mesogastrium can be better and completely separated than after separating it from the front.Before or after the duodenum is excised,the resection of the right mesogastrium in front of the portal vein has its own advantages.The right mesogastrium resection before excising duodenum has less bleeding,and the surgical field is broader after excising duodenum.When completing the right mesogastrium resection in front of the portal vein,the damage of the common bile duct due to excessive pull should be prevented.
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