Introduction: The aims of this retrospective multicentre study were to assess the technical success and adverse events of ERCP procedures in children in French and Belgian centres. Methods: All children aged one day to seventeen years who underwent ERCP between January 2008 and March 2019 in 15 tertiary care hospitals were retrospectively included. Results: 271 children underwent 470 ERCP procedures. Clinical long-term follow-up was available for 72% of our patients (340/470). The median age at intervention was 10.9 years. ERCP was therapeutic in 90% (423/470) and diagnostic in cases of neonatal cholestasis in 10% of the patients. The most common biliary indication was choledocholithiasis, and the most common pancreatic indication was chronic pancreatitis. Biliary cannulation was successful in 92% of cases (270/294); pancreatic cannulation, in 96% (169/176) of cases; and planned therapeutic procedures, in 91% (388/423) of cases. The overall complication rate was 19% (65/340). The most common complication was post-ERCP pancreatitis (PEP) in 12% (40/340) and sepsis in 5% (18/340) of cases. In the univariate analyses, pancreatic stent removal was protective against PEP (OR 0.1; 95% CI: 0.01-0.75, p=0.03), and sepsis was associated with liver transplantation history (OR 7.27, 95% CI: 1.7-31.05, p=0.01). Five patients had post-ERCP haemorrhage, and two had intestinal perforation. All complications were managed with supportive medical care. There was no procedure-related mortality. Conclusion: Our cohort demonstrates that ERCP can be performed safely with high success rates in many pancreaticobiliary diseases of children. The rate of adverse events was similar to that in previous reports.

Background and Objectives: For the treatment of pancreatic duct stenosis due to chronic pancreatitis (CP) or postoperative (PO) stenosis, endoscopic procedures are usually the first choice. In cases of failure of the recommended treatment by ERCP, anastomosis between the Wirsung duct and the stomach or duodenum can be performed under EUS guidance. The objective of this retrospective study was to compare the outcomes of pancreatico-gastric or pancreaticoduodenal anastomosis under EUS for PO stenosis versus CP stenosis. Subjects and Methods: This was a retrospective, single-center, consecutive case study of patients who underwent EUS-guided Wirsungo-gastric/bulbar anastomosis. Results: Forty-three patients were included. Twenty-one patients underwent treatment for PO stenosis, and 22 patients underwent treatment for CP stenosis. The technical success rate was 95.3% (41/43), with 100% in cases of PO stenosis and 90.9% in cases of CP stenosis. The clinical success rate was 72.5% (29/40): 75% (15/20) in cases of PO stenosis and 70% (14/20) in cases of CP stenosis. The overall morbidity rate was 34.9% (15/43). The main complication was postprocedural pain, occurring in 20.9% (9/443) of patients. The rate of stent migration or obstruction was 27.9% (12/43). There was no difference in patient outcomes or morbidity according to the etiology of the stenosis. The median follow-up duration in this study was 14 months. Conclusions: EUS-guided Wirsungo-gastric/duodenal anastomosis is a feasible, minimally invasive, safe, and relatively effective procedure. The rates of technical success, clinical success, and complications were not different between patients with PO and CP stenosis. However, the follow-up period was too short to assess recurrent symptoms in these patients.

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