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Procedures - Polypectomy

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Video case report
Open Access
Usefulness and safety of a scissors-type knife in endoscopic submucosal dissection for nonampullary duodenal epithelial tumors
VideoGIE
Vol. 2Issue 10p287–289Published online: July 23, 2017
- Tomoyuki Nishimura
- Toshio Kuwai
- Toshiki Yamaguchi
- Hiroshi Kohno
- Sauid Ishaq
Cited in Scopus: 5
- Video
Duodenal endoscopic submucosal dissection (ESD) is considered challenging because of poor endoscopic operability. Furthermore, the muscle layer of the duodenum is thinner than that of any other site in the GI tract, resulting in higher reported perforation rates of up to 30%.^1-3 To prevent the risk of adverse events (especially perforations) associated with the use of a conventional knife in ESD for nonampullary duodenal epithelial tumors (NADETs), we used a scissors-type knife, a stag beetle (SB) Knife Jr (Sumitomo Bakelite Co, Tokyo, Japan), which maintains an adequate dissection layer and a controlled cut that prevents unexpected muscular layer injuries.