In addition to gastric resection, many people know of another early procedure, gastric banding, which is a laparoscopic procedure in which a silicone band is placed over the upper part of the stomach and can be adjusted with water. However, this procedure has slowly been replaced by the mainstream sleeve gastric surgery and gastric bypass surgery, and has become an obsolete procedure in bariatric surgery. Why is this? Adjustable gastric banding surgery: This is because gastric banding surgery has more complications compared to other surgical procedures, and its long-term weight loss results have been found to be inferior to the above two modalities in clinical studies over the years. The common complications of gastric banding surgery are: 1. Nausea and vomiting are the most common complications in the first year postoperatively. Nausea and vomiting in the immediate postoperative period are mostly caused by reactions to anesthetic drugs, tight banding, postoperative edema of the gastric wall or improper placement of the banding, etc. In the later period, they are often caused by patients eating too quickly and too much water injection into the gastric banding. In our hospital, the gastric tube is routinely left in place for 24 hours after surgery, and after the upper gastrointestinal tract is confirmed to be appropriately positioned by pantopamine imaging and there is no outflow tract obstruction, the gastric tube is removed and a liquid diet is fed, and antiemetic medication is routinely used early to prevent it. 2, incisional infection: obese patients with thick abdominal fat, surgery is easy to form fat liquefaction necrosis, local infection foci formed, at the same time, because patients are mostly combined with diabetes, easy to cause secondary infection. Can take preventive use of antimicrobial, subcutaneous as little as possible to use electric knife, postoperative strict control of blood sugar and other measures to reduce the incidence of incisional infection. 3, gastric band/injection pump displacement: mostly caused by unsatisfactory intraoperative gastric band/injection pump encapsulation and fixation, can be fixed and encapsulated through the exact intraoperative gastric band/injection pump to reduce its incidence. 4, gastric bursa dilatation: Mostly due to the large volume of gastric bursa left in place during surgery and inaccurate fixation of the band. Intraoperative control of the volume of gastric bursa to 10-15 ml by adjustable gastric catheter and simultaneous exact encapsulation of gastric band is the fundamental measure to reduce the dilatation of gastric bursa. For fat people who want to undergo weight loss surgery, please choose a mature and regular weight loss surgery team and have a professional doctor evaluate the right weight loss procedure for your individual situation.