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A prospective randomized trial comparing a virtual reality simulator to bedside teaching for training in
1Division of Gastroenterology and Hepatology, Stanford University School of Medicine, Stanford, California 94305, USA. lgerson@stanford.edu
Endoscopy
|June 25, 2003
Summary
Virtual reality endoscopy simulators were found to be less effective than traditional bedside teaching for training residents in sigmoidoscopy. Bedside teaching resulted in better performance in key procedural aspects compared to exclusive simulator training.
Area of Science:
- Medical Education
- Gastroenterology
- Surgical Simulation
Background:
- Virtual reality (VR) technology enables clinical investigations using endoscopy simulators.
- Advances in VR allow for novel training methods in endoscopic procedures.
- This study compares VR simulator training with traditional bedside teaching for sigmoidoscopy.
Purpose of the Study:
- To prospectively evaluate the efficacy of exclusive virtual reality endoscopy simulator training versus bedside teaching for sigmoidoscopy.
- To compare resident performance in sigmoidoscopy after distinct training interventions.
Main Methods:
- Internal medicine residents were randomized into two groups: VR simulator training or bedside teaching.
- Performance was assessed during sigmoidoscopic procedures in asymptomatic patients.
- Evaluated metrics included procedure duration, completion, retroflexion ability, patient comfort, and a 1-5 scoring system.
Main Results:
- Simulator-trained residents showed greater difficulty with endoscope insertion and rectosigmoid navigation (2.9 vs. 3.8, P < 0.001).
- Independent splenic flexure navigation was achieved in 29% of simulator-trained procedures versus 72% of traditionally trained (P = 0.001).
- Retroflexion success rates were 56% for simulator training vs. 84% for traditional teaching (P = 0.02).
Conclusions:
- Exclusive use of current VR endoscopy simulators is inferior to traditional bedside teaching for sigmoidoscopy training.
- Bedside teaching remains the superior method for developing essential sigmoidoscopy skills in medical residents.