title: Usefulness and safety of SB knife Jr in endoscopic submucosal dissection for colorectal tumors.
abstract: Use of a Dual knife has become commonplace for endoscopic submucosal dissection (ESD) of colorectal tumors at Hiroshima University Hosipital. A Hook knife has been also used in combination with the Dual knife, depending on the location of the lesion. We have had recent opportunities to use a scissors-type SB knife Jr. We retrospectively compared outcomes of colorectal ESD performed with the Dual knife in combination with the SB knife Jr versus the Hook knife. In conclusion, although the Hook knife was shown to be a very useful auxiliary device for colorectal ESD, the SB knife Jr. yielded better results than the Hook knife in terms of complete en block resection and avoidance of perforation. Use of the Dual knife with the SB Knife Jr shows good potential for improving complete en bloc resection rate and safety of technically difficult colorectal ESD.
authors.affiliation: Department of Endoscopy, Hiroshima University Hospital, Hiroshima, Japan.
authors.forename: Shiro
authors.initials: S
authors.lastname: Oka
authors.forename: Shinji
authors.initials: S
authors.lastname: Tanaka
authors.forename: Sayaka
authors.initials: S
authors.lastname: Takata
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Kanao
authors.forename: Kazuaki
authors.initials: K
authors.lastname: Chayama
mesh_terms: D000368:Aged; D015179:Colorectal Neoplasms / Q000473:pathology / Q000601:surgery*; D004210:Dissection / Q000295:instrumentation* / Q000379:methods; D016099:Endoscopy, Gastrointestinal / Q000295:instrumentation*; D004867:Equipment Design; D005260:Female; D005355:Fibrosis; D006801:Humans; D007413:Intestinal Mucosa / Q000601:surgery; D008297:Male; D008875:Middle Aged