Endoscopy international open · 2026
Efficacy of next-generation endoscopy training simulator in improving international trainee endoscopic submucosal dissection skills.
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Uozumi Takeshi, Abe Seiichiro, Kawamura Reona, Mizuguchi Yasuhiko, Ichijima Ryoji, Nonaka Satoru, Suzuki Haruhisa, Saito Yutaka
Аннотация
BACKGROUND AND STUDY AIMS: Off-the-job training (OFF-JT) ensures that all trainees receive a standardized level of ESD training, regardless of the clinical workload or the regional context. This study aimed to evaluate the efficacy of OFF-JT using a next-generation laptop-based mock-up endoscopy simulator (NLMES) in improving endoscopic submucosal dissection (ESD) skills among international trainees.
METHODS: This study was a single-center, prospective pilot study employing a crossover design. International trainees in Group A underwent designated NLMES training and ESD observation during the early phase (Days 1-14), followed by ESD observation during the late phase (Days 15-28), whereas those in Group B followed the reverse schedule. On Days 1, 15, and 29, the trainees performed ESD using a biomaterial-free ESD model, and the ESD skills were assessed at each time point. The primary endpoint was the between-group comparison of improvement in dissection speed on Day 15.
RESULTS: A total of 10 international trainees were enrolled in this study. On Day 15, the improvement in dissection speed was greater in Group A than in Group B, although the statistical difference was not significant (6.40 mm 2 /min; 95% confidence interval [CI] 0.50-12.31] vs. -0.76 mm 2 /min; 95% CI -8.91 to 7.39], P = 0.087). The within-group comparison of dissection speed between before and after NLMES training demonstrated significant differences in both groups.
CONCLUSIONS: OFF-JT using NLMES might be a promising approach improving international trainee ESD skills. Dissection speed increased during the period when NLMES training was received, highlighting the importance of OFF-JT.
METHODS: This study was a single-center, prospective pilot study employing a crossover design. International trainees in Group A underwent designated NLMES training and ESD observation during the early phase (Days 1-14), followed by ESD observation during the late phase (Days 15-28), whereas those in Group B followed the reverse schedule. On Days 1, 15, and 29, the trainees performed ESD using a biomaterial-free ESD model, and the ESD skills were assessed at each time point. The primary endpoint was the between-group comparison of improvement in dissection speed on Day 15.
RESULTS: A total of 10 international trainees were enrolled in this study. On Day 15, the improvement in dissection speed was greater in Group A than in Group B, although the statistical difference was not significant (6.40 mm 2 /min; 95% confidence interval [CI] 0.50-12.31] vs. -0.76 mm 2 /min; 95% CI -8.91 to 7.39], P = 0.087). The within-group comparison of dissection speed between before and after NLMES training demonstrated significant differences in both groups.
CONCLUSIONS: OFF-JT using NLMES might be a promising approach improving international trainee ESD skills. Dissection speed increased during the period when NLMES training was received, highlighting the importance of OFF-JT.