Optimizing a decision support system for damage-control resuscitation using mixed methods human factors analysis.

BACKGROUND: Damage-control resuscitation (DCR) improves trauma survival; however, consistent adherence to DCR principles through multiple phases of care has proven challenging. Clinical decision support may improve adherence to DCR principles. In this study, we designed and evaluated a DCR decision support system using an iterative development and human factors testing approach. METHODS: The phases of analysis included initial needs assessment and prototype design (Phase 0), testing in a multidimensional simulation (Phase 1), and testing during initial clinical use (Phase 2). Phase 1 and Phase 2 included hands-on use of the decision support system in the trauma bay, operating room, and intensive care unit. Participants included trauma surgeons, trauma fellows, anesthesia providers, and trauma bay and intensive care unit nurses who provided both qualitative and quantitative feedback on the initial prototype and all subsequent iterations. RESULTS: In Phase 0, 14 (87.5%) of 16 participants noted that they would use the decisions support system in a clinical setting. Twenty-four trauma team members then participated in simulated resuscitations with decision support where 178 (78.1%) of 228 of tasks were passed and 27 (11.8%) were passed with difficulty. Twenty-three (95.8%) completed a postsimulation survey. Following iterative improvements in system design, Phase 2 evaluation included 21 trauma team members during multiple real-world trauma resuscitations. Of these, 15 (71.4%) completed a formal postresuscitation survey. Device-level feedback on a Likert scale (range, 0-4) confirmed overall ease of use (median score, 4; interquartile range, 4-4) and indicated the system integrated well into their workflow (median score, 3; interquartile range, 2-4). Final refinements were then completed in preparation for a pilot clinical study using the decision support system. CONCLUSIONS: An iterative development and human factors testing approach resulted in a clinically useable DCR decision support system. Further analysis will determine its applicability in military and civilian trauma care. LEVEL OF EVIDENCE: Therapeutic/Care Management, Level V.

Interprofessional Simulations to Inform Perioperative Facility Planning and Design.

OBJECTIVE: The purpose of this study is to report our experience with interprofessional simulations, executed in a mock-up of a proposed perioperative space, that were designed to elicit valuable end-user feedback on the design of the perioperative space. DESIGN: A styrofoam, life-sized model of a perioperative unit was constructed. Various medical professionals and support staff participated in interactive sessions, including workflow simulations, and provided feedback on the perioperative design. Based on participant feedback, the perioperative design was modified, and the styrofoam model was re-constructed. A second round of sessions was conducted, and the change in participant feedback was analyzed. SETTING: This study took place under the auspices of the University of Pennsylvania in Philadelphia, Pennsylvania, within Penn Medicine. PARTICIPANTS: One-hundred and ninety-three medical professionals and front line operating room staff participated in the initial round of interactive sessions, and 134 participated in the second round (after re-construction). RESULTS: In the first round of simulations and interactive sessions, participants spent 560 hours engaging with the space. Modifications were then made to the perioperative design based on participant feedback, and a second round was conducted, in which participants spent 403 hours in the space. Floor plans for round 2 show significant changes compared with round 1, and mean design satisfaction scores for round 2 (3.78 ± 0.41) were significantly higher than for round 1 (3.61 ± 0.49) (p = 0.02). The quality of feedback was associated with the type of interactive session the user participated in. CONCLUSIONS: This study suggests that simulations and other interactive sessions, when executed in a mock-up of a proposed perioperative space, can elicit valuable end-user feedback that impacts the final design of the perioperative space and that would traditionally be difficult to obtain until after construction and move-in.