Sección de Bioelectrónica, Departamento de Ingeniería Eléctrica, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN), Ciudad de México, México.
Sección de Bioelectrónica, Departamento de Ingeniería Eléctrica, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN), Ciudad de México, México.
J Surg Educ. 2024 Aug;81(8):1133-1153. doi: 10.1016/j.jsurg.2024.05.006. Epub 2024 Jun 6.
Analyze the learning curve of medical students when they are trained with a laparoscopic box trainer and are presented with different modes of real-time feedback on their performance in the laparoscopic suturing procedure.
A prospective randomized controlled trial (RTC) was performed. Three groups were proposed: control, visual, and haptic. The block randomization technique was used to assign the participants to one of the three groups. Each group trained the intracorporeal square flat knot task in a standardized FLS box simulator. A total of 11 sessions were programmed for this study: a pre-training session, eight training sessions, a post-training session, and a follow-up session. Measurement of the generated reaction force during the task were taken weekly for the first 10 sessions (pre-training, training, and post-training); then, the follow-up measurement was taken a month after.
This study was carried out in a single center at the Unidad de Simulación de Posgrado (USIP) of the postgraduate medicine program of the Universidad Nacional Autónoma de México (UNAM) between May and August 2023.
The eligible participants were medical students without experience in minimally invasive surgery. All social service intern medics doing their social service in the USIP were invited to participate. A total of 20 participants entered the study from which 18 of them finished all the programmed sessions.
A total of ten metrics were extracted from the reaction force signal measured at each session. All metrics are directly proportional to the reaction force and low magnitudes imply high tissue-handling proficiency. All groups improved their tissue handling skills, being the visual group the one who achieved better performance, followed by the haptic group and lastly the control group.
The use of real time feedback, especially visual feedback can help novices to shorten the learning process of tissue handling and achieve a better proficiency in advanced tasks in shorter training periods.
分析医学生在使用腹腔镜箱式训练器进行训练时的学习曲线，并为他们提供腹腔镜缝合过程中表现的不同实时反馈模式。
前瞻性随机对照试验（RTC）。提出了三个组：对照组、视觉组和触觉组。使用块随机化技术将参与者分配到三个组之一。每个组在标准化 FLS 箱模拟器中训练腔内方形平结任务。本研究共编程 11 个课程：预培训课程、8 个培训课程、培训后课程和随访课程。在第一个 10 个课程（预培训、培训和培训后）中每周测量任务产生的反作用力；然后，在一个月后进行随访测量。
本研究在墨西哥国立自治大学（UNAM）研究生医学课程的高级模拟单元（USIP）的一个中心进行，时间为 2023 年 5 月至 8 月。
符合条件的参与者是没有微创外科经验的医学生。邀请所有在 USIP 做社会服务实习医生的社会服务实习医生参加。共有 20 名参与者进入研究，其中 18 名完成了所有计划的课程。
从每个课程测量的反作用力信号中提取了总共 10 个指标。所有指标都与反作用力成正比，低幅度意味着高组织处理能力。所有组都提高了他们的组织处理技能，其中视觉组的表现最好，其次是触觉组，最后是对照组。
实时反馈，特别是视觉反馈的使用可以帮助新手缩短组织处理的学习过程，并在较短的培训期内实现更高级任务的更好熟练程度。
