2018 Volume 32 Issue 2 Pages 216-223
We often experience early plastic stent (PS) occlusion in preoperative endoscopic biliary stenting (EBS) with distal malignant biliary obstruction (DMBO). In our retrospective analysis for preoperative cases with DMBO, which consisted of 22 cases of pancreatic cancer and 14 cases of biliary tract cancer, we did not require re-drainage with the self-expandable metallic stent (SEMS) group. On the other hand, in the PS group, the re-drainage rate was 81.8% and 23.5 % (p=0.008) and the mean stent patency was 32.8 days and 57.6 days (p=0.006) for 7Fr and 8.5Fr, respectively. In the 8.5Fr PS group the stent patency rate was 94.1% on the 25 day. No differences were found between the PS and SEMS groups in regards to duration of surgery, amount of bleeding, hospitalization, and postoperative complications. For preoperative EBS, if the waiting period before surgery is less than 25 days, we should use a PS whose size is more than 8.5Fr, and if it is 25 days or more, we should use SEMS.
