Assessment of a new kind of surgical simulator. The physical surgical simulator

Abstract Purpose: To evaluate whether the use of the physical surgical simulator may benefit the development of laparoscopic skills. Methods: Ten medical students were divided into two groups: the first one performed ten weekly training sessions with a physical surgical simulator - ETX A2 LAP and, afterwards, one laparoscopic cholecystectomy in a porcine model, while the second group performed only a laparoscopic cholecystectomy. Both groups were compared regarding bleeding, total surgical time, time to perform each surgical step and qualitative parameters, based on a previously validated tool. Results: There was no difference in any of the evaluated parameters. Conclusion: We did not find any evidence of benefit in the use of the physical simulator for surgical performance in medical students.

摘要

## 目的：评估物理手术模拟器（physical surgical simulator）的使用是否可促进腹腔镜操作技能的发展。

## 方法：将10名医学生分为两组，第一组每周完成10次ETX A2 LAP物理手术模拟器训练，随后在猪模型（porcine model）上完成1例腹腔镜胆囊切除术（laparoscopic cholecystectomy）；第二组仅直接在猪模型上完成腹腔镜胆囊切除术。采用预先经过验证的评估工具，对比两组的失血量、总手术时长、各手术步骤耗时及定性评估参数。

## 结果：所有评估参数均无显著差异。

## 结论：未发现物理手术模拟器对医学生的手术操作表现存在获益的相关证据。