A low-cost, DIY tourniquet simulator with built-in self-assessment for prehospital providers in Guatemala city.

BACKGROUND: Hemorrhage is the leading cause of preventable death after trauma. In high-income countries first responders are trained in hemorrhage control techniques but this is not the case for developing countries like Guatemala. We present a low-cost training model for tourniquet application using a combination of virtual and physical components. METHODS: The training program includes a mobile application with didactic materials, videos and a gamified virtual reality environment for learning. Additionally, a physical training model of a bleeding lower extremity is developed allowing learners to practice tourniquet application using inexpensive and accessible materials. Validation of the simulator occurred through content and construct validation. Content validation involved subjective assessments by novices and experts, construct validation compared pre-training novices with experts. Training validation compared pre and post training novices for improvement. RESULTS: Our findings indicate that users found the simulator useful, realistic, and satisfactory. We found significant differences in tourniquet application skills between pre-training novices and experts. When comparing pre- and post-training novices, we found a significantly lower bleeding control time between the groups. CONCLUSION: This study suggests that this training approach can enhance access to life-saving skills for prehospital personnel. The inclusion of self-assessment components enables self-regulated learning and reduces the need for continuous instructor presence. Future improvements involve refining the tourniquet model, validating it with first-responder end users, and expanding the training program to include other skills.

Use of geospatial analysis for priority setting in surgical system investment in Guatemala.

Background: Two-hour and 30 min travel times to a hospital capable of performing emergency general surgery and cesarean section are benchmarks for timely surgical access. This study aimed to estimate the population of Guatemala with timely access to surgical care and identify existing hospitals where the expansion of surgical services would increase access. Methods: The World Federation of Societies of Anaesthesiologists (WFSA) Anesthesia Facility Assessment Tool (AFAT) previously identified 37 public Guatemalan hospitals that provide surgical care. Nine additional public non-surgical hospitals were also identified. Geospatial analysis was performed to estimate walking and driving geographic access to all 46 hospitals. We calculated the potential increase in access that would accompany the expansion of surgical services at each of the nine non-surgical hospitals. Findings: The percentage of the population with walking access to a surgical hospital within 30 min, 1 h, and 2 h are 5·1%, 12·9%, and 27·3%, respectively. The percentage of people within 30 min, 1 h, and 2 h driving times are 27·3%, 41·1%, and 53·1%, respectively. The median percentage of the population within each of Guatemala's 22 administrative departments with 2 h walking access was 19·0% [IQR 14·1-30·7] and 2 h driving access was 52·4% [IQR 30·5-62·8]. Expansion of surgical care at existing public Guatemalan hospitals in Guatemala would result in a minimal increase in overall geographic access compared to current availability. Interpretation: While Guatemala provides universal health coverage, geographic access to surgical care remains inadequate. Geospatial mapping and survey data work synergistically to assess surgical system strength and identify gaps in geographic access to essential surgical care. Funding: None.