Cognitive Load and Performance in Immersive Virtual Reality Versus Conventional Virtual Reality Simulation Training of Laparoscopic Surgery - a Randomized Trial
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 31
- 试验地点
- 1
- 主要终点
- Cognitive load
研究概览
简要总结
In this study, the investigators examine the cognitive load (CL) and performance of a laparoscopic procedure in immersive virtual reality and controlled virtual reality in a randomized, controlled setup. Virtual reality (VR) simulators combined with head mounted displays (HMDs) enable highly immersive virtual reality (IVR) for surgical skills training, potentially bridging the gap between the simulation environment and real-life operating room (OR) conditions. However, the increased complexity of the learning situation in IVR could potentially induce high CL thereby inhibiting performance and learning.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Other
- 盲法
- None
盲法说明
Participants and the principal investigators were blinded to performance metrics by the simulator during the supervised procedure and the three test procedures. Participants and the data collector could not be blinded to the allocation/intervention. The investigator in charge of the statistical analysis was blinded to participants' group allocation.
入排标准
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •First year resident
排除标准
- •Previous participation in trials involving laparoscopic training
- •Prior experience with laparoscopic surgery (having performed one or more laparoscopic procedures as primary surgeon, including supervised procedures)
- •Not speaking Danish on a conversational level
研究组 & 干预措施
Immersive virtual reality
Completing the procedures in immersive virtual reality
干预措施: Immersive virtual reality (Other)
Conventional virtual reality
Completing the procedures in conventional virtual reality
结局指标
主要结局
Cognitive load
时间窗: 6 months
Measurement of the participants cognitive load during four different time periods during the three procedures. Cognitive load was estimated by secondary-task reaction time. The investigators used an external and commercially available reaction timer (American Educational Products LLC, USA) to measure participants response time (in hundreds seconds) to an auditory stimulus (a beep). Reaction time was measured before and after the simulation to provide an individual baseline, and during the simulation at t=80 s, t=130 s, t=180 s and t=240 s. All reaction time measurements were done in series of four repeated measurements. It was also noted if the reaction time was measured while the participant was using the foot pedal for cauterization in the simulation.
次要结局
- Efficience of instrument movements (degrees)(6 months)
- Time to completion of procedure(6 months)
- Diathermy damage(6 months)
- Blood loss(6 months)
- Efficience of instrument movements (length)(6 months)
研究者
Joakim Grant Frederiksen
Principal Investigator
Copenhagen Academy for Medical Education and Simulation