Skip Navigation
Skip to contents

Clin Endosc.  2023 Sep;56(5):604-612. 10.5946/ce.2022.163.

Usefulness of a new polyvinyl alcohol hydrogel (PVA-H)-based simulator for endoscopic submucosal dissection training: a pilot study

Affiliations
  • 1Department of Gastroenterology, Incheon St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Incheon, Korea
  • 2Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
  • 3Department of Gastroenterology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
  • 4Department of Gastroenterology, SMG-SNU Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea
  • 5Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea

Abstract

Background/Aims
We developed a new endoscopic submucosal dissection (ESD) simulator and evaluated its efficacy and realism for use training endoscopists.
Methods
An ESD simulator was constructed using polyvinyl alcohol hydrogel sheets and compared to a previous ESD simulator. Between March 1, 2020, and December 30, 2021, eight expert endoscopists from three different centers analyzed the procedure-related factors of the simulator. Five trainees performed gastric ESD exercises under the guidance of these experts.
Results
Although the two ESD simulators provided overall favorable outcomes in terms of ESD-related factors, the new simulator had several benefits, including better marking of the target lesion’s limits (p<0.001) and overall handling (p<0.001). Trainees tested the usefulness of the new ESD simulator. The complete resection rate improved after 3 ESD training sessions (9 procedures), and the perforation rate decreased after 4 sessions (12 procedures).
Conclusions
We have developed a new ESD simulator that can help beginners achieve a high level of technical experience before performing real-time ESD procedures in patients.

Keyword

Endoscopic submucosal resection; Endoscopy; Hydrogels; Polyvinyl alcohol; Simulation training
Full Text Links
  • CE
Actions
Cited
CITED
export Copy
Close
Share
  • Twitter
  • Facebook
Similar articles
Copyright © 2026 by Korean Association of Medical Journal Editors. All rights reserved.     E-mail: koreamed@kamje.or.kr