The present study is a prospective, single-center study. A total of 88 patients, who had placed a pancreatic stent for preventing post-ERCP pancreatitis, will be included in the study. Aim of the study is to establish a new algorithm based on a sonographic approach to remove the placed pancreatic stents. Another aim is to compare high-end sonographic devices with devices of medium price scale one's used on the ward. On the day of removal of the pancreatic stent, all patients receive a sonography by an experienced investigator on the ward and by another, uninformed investigator with a high-end device. If a pancreatic stent is visualized in the pancreatic duct, the patient will have an esophagogastroduodenoscopy to remove the pancreatic stent. If sonography cannot find a pancreatic stent in the pancreatic duct an x-ray will be performed as suggested by the European and international guidelines. If the pancreatic stent spontaneously dislocated into the small bowel tract according to x-ray, no further investigation will be performed. If a stent is visulized in situ by x-ray, it will be removed by endoscopyl. Statistical analysis will be done in cooperation with the statistical biomedical institute oft he university hospital in Frankfurt.
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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Confirmation of a new algorithm to remove a prophylactic pancreatic stent placed to prevent post-ERCP pancreatitis by using sonography as first approach and compare the findings statistically in a pivot table to x-ray and endoscopy.
Timeframe: The entire procedure will take place within one hour.