Résumé
Objective To explore the experience of the double guide wires technology in the difficult ERCP examinations.Methods There were 776 difficult ERCP patients.701 cases with difficult cannulation of the bile duct had been inserted another guide wire into the upper left corner of the duodenal papilla after retained pancreatic guide wire.75 cases with difficult cannulation of the pancreatic duct had been inserted another guide wire into the right vertical direction of the duodenal papilla after retained a guide wire into the commom bile.Results 697cases(99.4%)with difficult cannulation of the bile duct were examined successfully at first time;74 cases(98.7%)with difficult cannulation of the pancreatic duct were examined successfully at first time.Conclusion Double guide wires technology is easy to use.The method of retaining a guide wire into the duct which was cannulated easily may increases the achievement ratio of cannulation into another duct.The check time was shortened significantly.