biliary tract disease
Conditions
Interventions
None listed
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: Patients underwent ERCP at our hospital between April 2021 and September 2023 with naive papillae of Vater are enrolled in this study.
Exclusion criteria
Exclusion criteria: Exclusion criteria include patients who underwent the procedure for the second or subsequent times, previous endoscopic sphincterotomy, use of a forward-viewing endoscope or balloon-assisted enteroscopy was used, and discontinuation of treatment for anatomic reasons such as intestinal stenosis.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The success rate of deep bile duct cannulation using the conventional contrast method for several recognition patterns. | — |
Secondary
| Measure | Time frame |
|---|---|
| Precut sphincterotomies and adverse event rates. | — |
Countries
Japan
Contacts
Ehime Prefectural Central Hospital Gastroenterology Center