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KMID : 1038120230560050604
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Clinical Endoscopy
2023 Volume.56 No. 5 p.604 ~ p.612
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Usefulness of a new polyvinyl alcohol hydrogel (PVA-H)-based simulator for endoscopic submucosal dissection training: a pilot study
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Lee Dong-Seok
Lee Gin-Hyug
Kim Sang-Gyun
Lee Kook-Lae
Kim Ji-Won
Jeong Ji-Bong
Jung Yong-Jin
Kang Hyoun-Woo
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Abstract
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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.
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KEYWORD
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Endoscopic submucosal dissection, Endoscopy, Hydrogels, Polyvinyl alcohol, Simulation training
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