“…With regard to the safety issue, the rates of per-foration and postoperative hemorrhage did not differ between the two groups, although the IT-2 group consisted of more complicated cases. However, these rates of complications were apparently higher than those reported with conventional EMR, such as the strip biopsy method [9,10]. Nevertheless, perforations made by IT knives can usually be repaired endoscopically with endoclips (Olympus Medical Systems, Tokyo, Japan) [11], and we found, in the present study, that all the patients with postoperative hemorrhage could be conservatively treated, except for one patient who refused a nasogastric tube and for whom blood transfusion was necessary.…”