Pancreatic stent insertion after an unintentional guidewire cannulation of the pancreatic duct during ERCP.

Introduction: the guidewire (GW) may enter the pancreatic duct during common bile duct (CBD) cannulation attempts in endoscopic retrograde cholangiopancreatography (ERCP). After GW passage into the pancreas, the most effective maneuver for CBD cannulation and pancreatitis prevention has not been determined.

Aim: to study CBD cannulation and post-ERCP pancreatitis rates when a pancreatic stent is inserted after an unintentional GW cannulation of the pancreatic duct.