Trial reportSurgical endoscopy2025
Effects of training in pairs versus training alone on reaching proficiency in minimally invasive Roux-en-Y-gastric bypass on a virtual reality trainer in medical students: a randomized-controlled trial.
Trial report in Surgical endoscopy, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Authors and funding
11 authors.
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No grant is acknowledged in the PubMed record.
Abstract
backgroundMinimally invasive surgery (MIS) is the standard approach in bariatric surgery. The most common bariatric procedures are sleeve gastrectomy and Roux-en-Y-Gastric Bypass (RYGB). Simulation training, including virtual reality (VR), is useful when learning MIS. Training in pairs has proven beneficial in acquiring basic MIS skills. However, this has not been tested on more complex procedures such as MIS RYGB. The study aimed to assess the learning effects of training MIS RYGB on a VR trainer in pairs compared to solo training.
methodsMedical students (n = 60) were randomized into the intervention group, trained in pairs (n = 30), and the control group, trained solo (n = 30). Both groups needed to train MIS RYGB on a VR trainer under the supervision of trained tutors until proficiency was reached. The MIS RYGB proficiency was defined as 105/110 points according to the Bariatric Objective Structured Assessment of Technical Skills (BOSATS) score. The primary outcome was the number of exercise repetitions until proficiency was reached. Secondary outcomes compared the BOSATS scores, bleeding incidents, and the validated score on current motivation.
resultsThe intervention group achieved proficiency with significantly fewer repetitions than the control group (p = 0.002). Most participants in the intervention group reached proficiency by the fifth repetition, and none required an eighth repetition. The intervention group had better BOSATS scores than the control group after the second, fourth, and fifth MIS RYGB (91.1 ± 6.4 vs. 87.1 ± 7.0 points, p = 0.025; 104.0 ± 4.7 vs. 100.3 ± 6.1 points, p = 0.014; 106.2 ± 2.8 vs. 101.9 ± 5.8 points, p = 0.026), respectively. Additionally, the intervention group experienced fewer bleeding complications in the fifth and sixth MIS RYGB repetitions than the control group (2 vs. 10, p = 0.001; 0 vs. 8, p < 0.001, respectively).
conclusionsTraining MIS RYGB on a VR trainer in pairs enables trainees to reach procedural proficiency with fewer exercise repetitions than training alone.
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