Open Access
CC BY-NC-ND 4.0 · Endosc Int Open 2022; 10(09): E1261-E1267
DOI: 10.1055/a-1845-5556
Original article

Development of new gastric endoscopic submucosal dissection training model: A reproducibility evaluation study

Tomohiro Mitsui
1   Department of Gastroenterology and Endoscopy, National Cancer Center Hospital East, Chiba, Japan
,
Yusuke Yoda
1   Department of Gastroenterology and Endoscopy, National Cancer Center Hospital East, Chiba, Japan
2   NEXT Medical Device Innovation Center, National Cancer Center Hospital East
3   Division of Endoscopy, Saitama Cancer Center, Saitama, Japan
,
Hironori Sunakawa
1   Department of Gastroenterology and Endoscopy, National Cancer Center Hospital East, Chiba, Japan
,
Seiichiro Takayama
4   KOTOBUKI Medical, INC., Yashio, Japan
,
Keiichiro Nishihara
1   Department of Gastroenterology and Endoscopy, National Cancer Center Hospital East, Chiba, Japan
,
Atsushi Inaba
1   Department of Gastroenterology and Endoscopy, National Cancer Center Hospital East, Chiba, Japan
,
Daiki Sato
1   Department of Gastroenterology and Endoscopy, National Cancer Center Hospital East, Chiba, Japan
3   Division of Endoscopy, Saitama Cancer Center, Saitama, Japan
,
Tatsunori Minamide
1   Department of Gastroenterology and Endoscopy, National Cancer Center Hospital East, Chiba, Japan
,
Kenji Takashima
1   Department of Gastroenterology and Endoscopy, National Cancer Center Hospital East, Chiba, Japan
2   NEXT Medical Device Innovation Center, National Cancer Center Hospital East
,
Keiichiro Nakajo
1   Department of Gastroenterology and Endoscopy, National Cancer Center Hospital East, Chiba, Japan
,
Tatsuro Murano
1   Department of Gastroenterology and Endoscopy, National Cancer Center Hospital East, Chiba, Japan
,
Tomohiro Kadota
1   Department of Gastroenterology and Endoscopy, National Cancer Center Hospital East, Chiba, Japan
,
Kensuke Shinmura
1   Department of Gastroenterology and Endoscopy, National Cancer Center Hospital East, Chiba, Japan
,
Hiroaki Ikematsu
1   Department of Gastroenterology and Endoscopy, National Cancer Center Hospital East, Chiba, Japan
,
Tomonori Yano
1   Department of Gastroenterology and Endoscopy, National Cancer Center Hospital East, Chiba, Japan
2   NEXT Medical Device Innovation Center, National Cancer Center Hospital East
› Institutsangaben

KOTOBUKI Medical Inc
Preview

Abstract

Background and study aims Gastric endoscopic submucosal dissection (ESD) is a highly technical procedure mainly due to the distinctive shape of the stomach and diverse locations of lesions. We developed a new gastric ESD training model (G-Master) that could accurately recreate the location of the stomach and assessed the reproducibility of located lesions in the model.

Methods The model comprises a simulated mucous membrane sheet made of konjac flour and a setting frame, which can simulate 11 locations of the stomach. We assessed the reproducibility of each location in the model by assessing the procedure speed and using a questionnaire that was distributed among experts. In the questionnaire, each location was scored on a six-point scale for similarity of locations.

Results The mean score for all locations was high with > 4 points. Regarding locations, lower anterior and posterior walls had medium scores with 3 to 4 points. The procedure speed was slower in the greater curvature of the upper and middle gastric portions, where ESD is considered more difficult than the overall procedure speed.

Conclusions The new gastric ESD training model appears to be highly reproducible for each gastric location and its application for training in assuming actual gastric ESD locations.



Publikationsverlauf

Eingereicht: 04. Mai 2022

Angenommen nach Revision: 04. Mai 2022

Accepted Manuscript online:
06. Mai 2022

Artikel online veröffentlicht:
14. September 2022

© 2022. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)

Georg Thieme Verlag KG
Rüdigerstraße 14, 70469 Stuttgart, Germany