Virtual reality simulation to enhance laparoscopic salpingectomy skills

Abstract

Background: To assess skill enhancement and maintenance by virtual-reality simulation of laparoscopic salpingectomy in gynecologic surgery fellows. Skill acquisition by virtual-reality surgical simulation is an active field of research and technological development. Salpingectomy is one of the first gynecologic surgery techniques taught to fellows that requires accompanied learning.

Methods: A single-center prospective study was performed in the University of Lyon, France, including 26 junior fellows (≤ 3 semesters' internship) performing laparoscopic salpingectomy exercises on a LapSim® virtual reality simulator. Salpingectomy was performed and timed on 3 trials in session 1 and 3 trials in session 2, at a 3-month interval. Analysis was based on students' subjective assessments and a senior surgeon's objective assessment of skill. Progress between the 2 sessions was assessed on McNemar test and Wilcoxon test for matched series.

Results: 26 junior specialist trainees performed all trials. Most performed anterograde salpingectomy, both in session 1 (69 %) and session 2 (86 %). Mean procedure time was significantly shorter in session 2: 6.10min versus 7.82min (p=0.0003). There was a significant decrease in blood loss between the first trial in session 1 and the last trial in session 2: 167ml versus 70.3ml (p=0.02). Subjective assessment showed a significant decrease in anxiety and significant increase in perceived efficacy, eye-hand coordination and ergonomics. Efficacy, performance quality and speed of execution as assessed by the senior surgeon all improved significantly from trial to trial, while hesitation significantly decreased.

Conclusions: The study showed that junior trainees improved their surgical skills on a short laparoscopic exercise using a virtual reality simulator. Virtual reality simulation is useful in the early learning curve, accelerating the acquisition of reflexes. Maintaining skill requires simulation sessions at shorter intervals.

Keywords: Laparoscopic salpingectomy; Simulation; Teaching; Training; Virtual reality simulator.