Endoscopic submucosal dissection of early gastric neoplasms in the fornix using the newly developed scissors-type SB knife GX

Endoscopic submucosal dissection (ESD) using a scissors-type knife, the Stag-Beetle knife (SB knife, Sumitomo Bakelite, Tokyo, Japan), is considered technically easy and safe due to its ability to grasp the target tissue to allow controlled resection without the complex endoscopic tip control required with conventional ESD devices. There are two types of SB knife (short-type and Jr-type), used mainly for esophageal and colorectal neoplasms (1-3). Recently, a new type, SB knife GX, has been developed for gastric ESD. The ridged base of the blades helps grasp tissue more tightly. More details about the characteristics of SB knife GX and comparison with another scissors-type knife, Clutch Cutter (Fujifilm, Tokyo, Japan) (4), are described in the video.

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