Prophylactic Pancreatic Stent Placement for Endoscopic Duodenal Ampullectomy: A Single-Center Retrospective Study

Background/Aims: We investigated the efficacy of pro-phylactic pancreatic stent placement for preventing post-procedure pancreatitis in patients undergoing endoscopic papillectomy. Methods: This retrospective study included 82 consecutive patients who underwent endoscopic papil-lectomy for benign ampullary neoplasm at Samsung Medical Center between August 2002 and June 2011. The patients were subdivided into two groups, namely, those who received prophylactic pancreatic stent placement and those who did not. Patient demographics, baseline blood test, tumor characteristics, and endoscopic treatment data were col-lected. The primary endpoint was postprocedure pancreati-tis. Results: There was no difference in the development of postprocedure pancreatitis between the stent group and the no stent group (6/54, 10.5% and 2/28, 7.14%, respectively; p=1.00). At baseline, there were no significant differences between the two groups in terms of their risk factors for pan-creatitis except pancreatic duct dye injection. The stent group was more likely to have dye injection than the nonstent group (100% vs 42.8%, p