Guidelines and consensus: Jejunoileostomy for diabetes mellitus-surgical norms and expert consensus (2023 version).

Diabetes mellitus (DM) is a group of diseases characterized by high blood glucose caused by insufficient absolute or relative secretion of insulin. Once diagnosed, patients need long-term treatment with hypoglycemic drugs. Currently, the existing first-line hypoglycemic drugs do not provide effective treatment for DM and its complications. In the past, the first generation and the second generation of weight loss surgery, such as gastric bypass and sleeve gastric surgery, had strict body mass index requirements. Moreover, post-surgery, patients are prone to fluctuating hypoglycemia, gastroesophageal reflux, and dumping syndrome. Hence, the curative effect of this type of surgery was compromised to a certain extent. Jejunoileostomy is a third-generation surgery for patients with DM, which has been shown to improve glucose and lipid metabolism, without changing the original gastrointestinal tract structure. Different from previous weight loss surgeries, jejunoileostomy has been clinically observed to delay the development of DM-related complications. Additionally, the postoperative complications are mild and do not affect the patient's quality of life. Based on our clinical observations from multi-center large samples, our team developed a consensus on the operative period and perioperative management of jejunoileostomy as a reference for clinical researchers.