Effect of prophylactic endoscopic clipping for prevention of delayed bleeding after endoscopic papillectomy for ampullary neoplasm: a multicenter randomized trial

Abstract

Background Endoscopic clip placement is technically challenging using a duodenoscope, limiting their application for treatment of bleeding after endoscopic papillectomy. This study evaluated the efficacy of newly designed clips to prevent bleeding after endoscopic papillectomy.

Methods Patients (n = 80) with suspected benign adenomas on the major papilla who were scheduled for endoscopic papillectomy with or without clipping were randomized. A new duodenoscope-compatible clip capable of being rotated, reopened, and repeatedly repositioned was used. The primary end point was incidence of delayed bleeding.

Results The clipping procedure was successful in all patients. The incidence of delayed bleeding was nonsignificantly higher in the no-clipping group than in the clipping group (31.6 % [95 % confidence interval (CI) 19.1–47.5] vs. 15.0 % [95 %CI 7.1–29.1]). The incidence of post-endoscopic retrograde cholangiopancreatography pancreatitis did not differ significantly between the groups (clipping vs. no-clipping: 17.5 % [95 %CI 8.7–31.9] vs. 5.3 % [95 %CI 1.5–17.3]), and all cases were mild.

Conclusions Placement of the newly designed rotatable clip was technically feasible and tended to have a protective effect by preventing delayed bleeding after endoscopic papillectomy, although statistical significance was not reached.

• References

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