Supplementary Material for: Comparison of Mannequin Training Satisfaction with a Conventional Box Trainer and a Low-Fidelity Fetoscopic Surgical Simulator for Selective Fetoscopic Laser Photocoagulation

Background: A low-fidelity fetoscopic surgical simulator (FSS) for training of selective fetoscopic laser photocoagulation (SFLP) was developed. Objective: To evaluate and compare training satisfaction with an FSS and with a conventional box trainer (BT). Methods: The BT consisted of a cleaned human placenta attached to the inside of a plastic storage box with a watertight lock cover and an ultrasound-transparent rubber skin. The FSS consisted of the replica of a monochorionic twin placenta attached to the inside of a spherically shaped, ultrasound-transparent phantom. Tap water was used as an ultrasound conduction agent. Evaluation of the mannequin trainings was conducted on 8 junior maternal-fetal medicine (MFM) attending physicians and 22 MFM fellows. Training satisfaction was scored from 0 to 10 on 8 different domains. Results: The mean satisfaction score (±SD) with the FSS was higher than with the BT in all domains (p p Conclusions: As evaluated by a small group of trainees, our FSS is superior to the BT in mannequin training of SFLP. However, the BT may be more useful for trainees with limited clinical experience.背景：本研究开发了一款用于选择性胎儿镜激光光凝术（selective fetoscopic laser photocoagulation, SFLP）培训的低逼真度胎儿镜手术模拟器（fetoscopic surgical simulator, FSS）。 目的：评估并对比该胎儿镜手术模拟器（FSS）与传统箱式训练器（box trainer, BT）的培训满意度。 方法：传统箱式训练器（BT）由经清洁处理的人类胎盘构成，将其固定于带有防水锁闭盖的塑料储物箱内部，并覆盖超声透明橡胶外皮。本研究所开发的FSS则由单绒毛膜双胎胎盘复制品构成，将其固定于球形超声透明体模内部，并以自来水作为超声传导介质。本次共招募8名低年资母胎医学（maternal-fetal medicine, MFM）主治医师与22名MFM专科进修医师，针对SFLP模拟培训开展效果评估。培训满意度从0至10分，共涵盖8个不同维度进行评分。 结果：在所有评分维度中，FSS的平均满意度得分（±标准差）均高于BT（原文此处标注为p p，推测存在统计显著性标注遗漏）。 结论：基于本次小样本受训人员的评估结果，本研究所开发的FSS在SFLP模拟培训中优于BT。但对于临床经验有限的受训人员而言，BT或许更具应用价值。