The purpose of this study is to test a new guide-wire (loop-tip wire) with a loop in the tip for the prevention of PEP and biliary tree access, in post-ERCP pancreatitis in high-risk patients.

Selective cannulation of common bile duct (CBD) by insertion of a guide-wire seems to be associated with fewer complication and post-ERCP pancreatitis (PEP) rate than the conventional biliary tree access with contrast injection even if results are conflicting. The aim of our study is to test a new guide-wire (loop-tip wire) with a loop in the tip for the prevention of PEP and biliary tree access, in PEP high-risk patients.

Type of study: Multicentric, prospective and randomized trial

Patients: PEP high-risk patients underwent ERCP for benign biliary pathology

Number of patients: 320 patients (160 for each group)

Aim:

Primary end point: The evaluation of the incidence of PEP . Secondary end point: The evaluation of CBD percentage cannulation.

Inclusion Criteria:

• high risk patients for post-ERCP pancreatitis

Exclusion Criteria:

• age < 18 yrs
• allergy to the contrast medium
• previous surgery
• neoplastic bilio-pancreatic disease
• previous EBS