Wire-guided cannulation over a pancreatic stent method increases the need for needle-knife precutting ın patients with difficult biliary cannulations.

Background And Aims: Cannulation of the major papilla can be problematic, and selective biliary cannulation may fail in up to 18% of cases. Various techniques, such as double-guidewire technique (DGWT), wire-guided cannulation over a pancreatic stent (WGC-PS), the precut endoscopic sphincterotomy (needle-knife precutting technique (NKP), and transpancreatic septostomy have been used to improve the success rate of biliary cannulation. We conducted a prospective, randomized study in order to compare the biliary cannulation success rates of DGWT and WGC-PS techniques in patients with inadvertent passage of guidewire to the pancreatic duct.

"Portal double ductopathy sign" in patients with portal vein cavernous transformation.

Background/aims: The aim of this study was to determine to what extent portal vein cavernous transformation affects the biliary tract and pancreatic duct system concurrently.

Methodology: Patients who had liver cirrhosis, liver malignancy, history of chronic alcohol use, chronic pancreatitis, pancreatic cancer, or surgery of upper abdomen were excluded. Endoscopic retrograde cholangiopancreatography was performed on all patients.