Virtual reality simulation with eye-tracking feedback versus mannequin-based training for situational awareness in trauma management under simulated emergency department interruptions in Iran: a pilot randomized controlled trial
Abstract
Purpose: To primarily examine the feasibility of implementing eye-tracking-based feedback within a virtual reality (VR) trauma simulation with realistically simulated emergency department interruptions, and to explore preliminary changes in situational awareness (SA) (primary outcome), Advanced Trauma Life Support (ATLS) performance, and trauma-management errors (exploratory outcomes) compared with conventional mannequin-based simulation.
Methods: In this pilot randomized pretest-posttest study, 35 medical interns were assigned to VR training with eye-tracking heatmap feedback (n=17) or mannequin-based training with instructor verbal feedback (n=18). SA (modified Situation Awareness Global Assessment Technique), ATLS checklist performance, and trauma-management error scores were measured before and after the intervention. Within-group changes were tested with the Wilcoxon signed-rank test, and between-group differences were compared using the Mann-Whitney U test on change scores (Δ=post-pre), with effect sizes reported as r.
Results: Baseline pretest performance did not differ significantly between the groups. Both groups improved in SA and ATLS performance (all P<0.001) and reduced error scores (VR: P=0.004; mannequin: P<0.001). In exploratory between-group comparisons, the VR group showed numerically greater improvements in SA (mean change 6.59 vs. 3.11; P=0.006, r=0.46), ATLS performance (22.12 vs. 8.22; P=0.003, r=0.48), and error reduction (-9.36 vs. -3.61; P=0.005,…
How strong is the evidence?
Evidence Hub reads this as a randomized trial, done in people. Its evidence level is 3 of 5 (Moderate · trial / cohort / secondary analysis). Trials without a large randomized design, cohorts and secondary analyses give moderate evidence. Reported size: 18 participants or records.
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