After admission, bowel preparation with polyethylene glycol was performed. Colonoscopy was performed using a water-jet-scope (PCFQ260JI or PCF290I, PCF260AZI; Olympus Optical, Tokyo, Japan). Once the sources of bleeding were identified (Fig. 2A ), they were marked with hemoclips (HX-610-135; Olympus Optical) near the origin of bleeding. Subsequently, the endoscope was removed and reinserted with the band-ligator device attached (MD-48710 EVL Device; Sumitomo Bakelite, Tokyo, Japan). We used a band-ligator device that was similar to that used for the treatment of esophageal varices. The bleeding site was suctioned into the band ligator, and the elastic O-band was released (Fig. 2B ). Marking with hemoclips was not performed in the case of post-polypectomy bleeding (Fig. 3 ).
Where early re-bleeding occurred, colonoscopy was performed to identify the source of re-bleeding, and additional treatments such as repeat EBL, endoscopic clipping, heat coagulation, and epinephrine injection were performed as necessary.
Where early re-bleeding occurred, colonoscopy was performed to identify the source of re-bleeding, and additional treatments such as repeat EBL, endoscopic clipping, heat coagulation, and epinephrine injection were performed as necessary.