[Clinical analysis of endoscopic retrograde cholangiopancreatography and stent implantation for the pancreaticobiliary injuries in children].

To investigate the therapeutic effectiveness of endoscopic retrograde cholangiopancreatography (ERCP) and stent implantation in the treatment of pancreaticobiliary injuries in children. A retrospective analysis was conducted on the clinical data of children diagnosed with pancreaticobiliary injury and undergoing ERCP and stent implantation at Beijing Children's Hospital, Capital Medical University from January 2021 to December 2022. Demographic information, clinical data, endoscopic treatment methods, postoperative complications and clinical prognosis of the children were collected. The etiology, location of pancreaticobiliary injury, occurrence of complications after endoscopic treatment, and the time for improvement and recovery after endoscopic treatment were analyzed. The patients were divided into 5 groups according to the etiologies of pancreaticobiliary duct injuries: post-surgical, pancreatic trauma, acute pancreatitis, chronic pancreatitis, and systemic lupus erythematosus groups. They were also classified into 4 groups according to the sites of pancreaticobiliary duct injuries: common bile duct, pancreatic head, pancreatic body, and pancreatic tail groups. Multi-factor analysis of variance was used for comparing the time of improvement and recovery among different groups. Among 22 patients, there were 8 males and 14 females, and the age was 7.5 (3.3,10.8) years. There were 19 cases of pancreatic or bile duct fistula, and 3 cases of pancreatic or bile duct stenosis. A total of 33 endoscopic procedures were performed on the 22 patients, out of which, 3 duct stenosis were failed to insert the stent because the catheter failed to pass through the stenosis site. The success rate was 91% (30/33). The pancreatic duct or bile duct stent was inserted, with the stent located at pancreatic or bile duct fistula. Postoperative complications included pancreatitis in 3 cases (9%, 3/33), hyperamylasemia in 5 cases (15%, 5/33), and postoperative infection in 4 cases (12%, 4/33). All patients were followed up for more than 1 year. Significant improvement was observed in external drainage and imaging monitoring among patients with successfully placed stents. There was no significant difference in the improvement time of ERCP in the treatment of pancreaticobile duct injury caused by different etiology (=0.65,=0.637). However, there were significant differences in healing time (=6.46,=0.004), among which the healing time of injuries caused by systemic lupus erythematosus was significantly different from that after surgery, trauma, acute pancreatitis and chronic pancreatitis (all <0.05). There was no significant difference in the improvement and healing time among different injury sites (all >0.05). ERCP and stent implantation can safely and effectively improve the clinical symptoms of children with pancreaticobiliary injury. Early intervention can improve long-term prognosis.