Chen Yu, Tan Qi, Zhu Jingzhen, Zhou Luqiang, Li Siyue, Zheng Ji
Army Medical University, Chongqing, China.
Front Oncol. 2024 Oct 4;14:1407393. doi: 10.3389/fonc.2024.1407393. eCollection 2024.
This study aimed to design a low-cost, simulation training platform for the ligation of deep dorsal vein (DVC) complex in radical prostatectomy and validate its training effectiveness.
A simplified prostate urethra model was produced by 0-degree silica gel and pulse pressure banding. This model was placed on a slope of about 30 degrees using cardboard to thus creating a narrow environment of the pelvis. The DVC ligation was performed by a 2D laparoscopy simulator. A total of 27 participants completed the study include 13 novices, 10 surgical residents and 4 urology experts. The novices were trained five trails with 24 hours interval, the residents and experts completed the DVC ligation once. The construct validity of this simulation training platform was performed by completing time, the GOALS (Global Operative Assessment of Laparoscopic Skills) and TSA (i.e. Task Specific Assessments) score. The face validity and content validity were performed by a specific closed-ended questionnaire.
There was no significant difference among three groups in demographic or psychometric variables ( > 0.05). Compared to the novices, the residents spend a shorter time to complete the DVC ligation ( < 0.05) and had higher GOALS scores ( < 0.05), but had no significant difference in TSA scores ( > 0.05). Additionally, the experts groups had a better performance compared to residents group in the completing time ( < 0.05), GOALS score ( < 0.05) and TSA score ( < 0.05). The learning curve of novices significantly promoted along with the increased times of training. Almost 90 percent of subjects considered that this simulator had a good performance in the realism and practicability.
We developed a novel low-cost a simulation training platform for the ligation of deep dorsal vein complex in radical prostatectomy, and this simulator had a good performance in the construct validity, face validity and content validity.
本研究旨在设计一种低成本的模拟训练平台，用于根治性前列腺切除术中深部背静脉（DVC）复合体的结扎，并验证其训练效果。
采用0度硅胶和脉冲压力绑扎制作简化的前列腺尿道模型。使用硬纸板将该模型放置在约30度的斜坡上，从而营造出狭窄的骨盆环境。通过二维腹腔镜模拟器进行DVC结扎。共有27名参与者完成了研究，包括13名新手、10名外科住院医师和4名泌尿外科专家。新手每隔24小时进行5次训练，住院医师和专家完成一次DVC结扎。通过完成时间、GOALS（腹腔镜技能全球手术评估）和TSA（即特定任务评估）评分来评估该模拟训练平台的结构效度。通过特定的封闭式问卷来评估表面效度和内容效度。
三组在人口统计学或心理测量学变量方面无显著差异（>0.05）。与新手相比，住院医师完成DVC结扎的时间更短（<0.05），GOALS评分更高（<0.05），但TSA评分无显著差异（>0.05）。此外，专家组在完成时间（<0.05）、GOALS评分（<0.05）和TSA评分（<0.05）方面比住院医师组表现更好。新手的学习曲线随着训练次数的增加而显著提升。几乎90%的受试者认为该模拟器在真实性和实用性方面表现良好。
我们开发了一种新型低成本的根治性前列腺切除术中深部背静脉复合体结扎模拟训练平台，该模拟器在结构效度、表面效度和内容效度方面表现良好。
