[Protection of sphincter of Oddi function from the viewpoint of confluence diseases of pancreaticobtlary ducts].

The confluence diseases of pancreaticobiliary ducts are important causes of benign and malignant diseases such as inflammation, stones, and tumors of the biliary and pancreatic systems. Endoscopic retrograde cholangiopancreatography (ERCP) has played an important role in the diagnosis and treatment of the confluence diseases of pancreaticobiliary ducts and the biliary and pancreatic systems diseases. However, excessive damage to the sphincter of Oddi (SO) can break the biliary tightness, leading to complications such as reflux cholangitis, stones, and tumors. Under the guidance of the concept of precision surgery, this article elaborates on the precise classification, diagnosis, treatment, and strategies of the confluence diseases of pancreaticobiliary ducts based on the anatomy and physiological function of the SO. By adopting the precise surgical strategies of cause elimination, damage control, and organ protection, which can not only effectively alleviate the obstruction of the biliary and pancreatic outflow tract, promote the rapid recovery of biliary and pancreatic diseases, reduce the incidence of postoperative complications, but also maximize the protection of the SO function, reduce the occurrence of long-term postoperative complications, and bring maximum benefits to doctors and patients.