| International Session（Workshop）3(JGES・JSGE・JSGS) |
| Sat. November 2nd 9:00 - 12:00 Room 4: Portopia Hotel South Wing Portopia Hall |
| Development of a new device for endoscopic submucosal resection with ligation device | |||
| Daisuke Kikuchi1, Junnosuke Hayasaka2, Satoshi Yamashita1 | |||
| 1Department of Gastroenterology, Digestive Tract Center, Toranomon Hospital Kajigaya, 2Department of Gastroenterology, Toranomon Hospital | |||
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| Introduction Endoscopic submucosal resection with ligation device(ESMR-L)has recently been performed for rectal neuroendocrine tumors(NETs)smaller than 10 mm. We have developed a new endoscopic band ligation(EBL)device(Endoligar)and verified its potential. Method Endoligar is divided into an inner cylinder with a tapered tip and an outer cylinder equipped with two O-rings. Injecting air with a 2.5ml syringe fires the first O-ring, then injecting air with a 5ml syringe fires the second O-ring. In this study, ESMR-L was performed on the mucosa of the excised anorectal region of pigs. First, glyceol was locally injected into the rectal mucosa, and EBL was performed. After that, the area just below the ligated O-ring was excised with a 10 mm snare. Result A total of eight ligations were performed using the four developed products. In all eight cases, it was possible to ligate the virtual lesion in the rectal mucosa under direct vision. In all eight cases, the virtual lesion was able to be removed by snare ring, and no adverse events such as perforation were observed. The average maximum major axis of the resected specimens was 22.9mm. Conclusion Endoligar has a tapered tip, has strong suction power, and has a long tip, making it possible to secure a good field of view. It has the potential to be useful in ESMR-L, and we aim to introduce it clinically in the future. |
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Index Term 1: ESMR-L Index Term 2: EBL |
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