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Simulation in a virtual combat environment puts surgical skills to the test

SANTA MONICA, CA Traditional medical training may not adequately prepare doctors in times of war. A unique study by human factors/ergonomics researchers in Norfolk, Virginia, concluded that virtual reality-based simulators can provide a safe venue for training military medical personnel in high-stress, high-workload conditions such as combat. The researchers will present their results on Friday, October 20, 2006, at the HFES 50th Annual Meeting at the Hilton San Francisco Hotel, which takes place October 1620.

Simulations provide safe and controlled environments, immediate performance feedback, and practice for skills under unique or dangerous conditions. Virtual environments have proven to be effective in training dismounted soldiers and military checkpoint guards, for example.

In this study, 15 medical students had to perform an emergency chest tube thoracostomy incision and insertion of a tube in the chest to permit fluid to drain on a mannequin in a CAVE (Cave Automatic Virtual Environment) while surrounded by visual and auditory depictions of gunfire, explosions, and a virtual sniper. They performed the surgery under both daytime and nighttime combat conditions. When tested again four months later, they demonstrated that they retained the necessary skills for the procedure.

The students' completion times demonstrated that they could perform the surgery efficiently, but the quality of their work suffered. Those who performed the procedure faster were more susceptible to "sniper" fire. Furthermore, stress created by the simulated environment may have caused some students to engage in inappropriate and dangerous behavior that would likely result in their being killed in a real combat situation.

This study is possibly the first to test performance with a standard mannequin-based medical simulator within a fully immersive virtual environment.


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Contact: Lois Smith
lois@hfes.org
310-394-1811
Human Factors and Ergonomics Society
16-Oct-2006


Page: 1

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