A simulation-based biodefense and disaster preparedness curriculum for internal medicine residents

Disaster and bioterrorism preparedness is poorly integrated into the curricula of internal medicine residency programs. Given that victims may present to a variety of healthcare venues, including primary care practices, inpatient hospital wards, and intensive care units, we developed a curriculum to address this need.

The curriculum consisted of four didactic sessions with supplemental readings covering biologic, chemical, and radiologic agents, as well as public health infrastructure. All 30 internal medicine resident participants also underwent a four hour training seminar at a high fidelity human simulation center. Instruction included the use of personal protective equipment (PPE)and participation in simulated scenarios utilizing technologically sophisticated mannequins with monitoring and interactive capability. Sessions were videotaped, reviewed with participants, and followed by self-evaluation and constructive feedback.

Compared to a control group of residents who did not undergo training, the participants' level of knowledge was significantly better, with mean objective test scores of 66.8%+/-11.8% SD vs. 50%+/-13.1% SD, p < 0.0001. Although there was a trend toward increasing knowledge with increasing level of training in the control group, this difference was not significant. Subjective preparedness was also significantly better in the intervention group (p < 0.0001). Objective improvements were not maintained after one year.

In this pilot study, a disaster-preparedness curriculum including simulation-based training had a positive effect on residents' knowledge base and ability to respond to disaster. However, this effect had diminished after one year, indicating the need for reinforcement at regular intervals.