Introduction Resuscitative Endovascular Balloon Occlusion of the Aorta (REBOA) is an invasivetechnique aimed at stabilizing hemodynamically unstable patients. The technique is underconstant development and in 2016 a new REBOA balloon requiring a smaller sized sheathwas introduced aiming to decrease complications and mortality. Studies show contradictoryfindings concerning outcome and complications of REBOA. Aim To investigate if survival and complications of patients treated with REBOA changed overtime by comparing two time periods, 2011-2015 and 2016-2020. Methods This was a retrospective registry study. Data was extracted from the Aortic Balloon Occlusion(ABO) trauma registry and 217 patients were included in the study. Patients were divided intotwo calendar periods, an early period (2011-2015) and a late period (2016-2020). Results Mortality at the emergency department was 24 % in the early period compared to 9 % in thelate period (p= 0.018). Mortality within 24 hours was reported in 40 % in the early period and36 % in the late period. In the early period, mortality within 30 days was 59 % and 36 % inthe late period. Access related complications such as extremity ischemia was reported in 1 %in the early period and 12 % in the late period (p = 0.001). Conclusion Early mortality at the emergency department has decreased over time. Access relatedcomplications were present in both the early and late period but extremity ischemia was morecommon in the late period.

This is an educational design project exploring how prehospital care training can be altered to improve mental proficiency for emergency medical professionals.  The London Air Ambulance performs a complex life-saving procedure known as REBOA (Resuscitative Endovascular Balloon Occlusion of the Aorta) on the roadside; the only emergency medical service to do so worldwide. Teams consisting of a doctor-paramedic pairing are required to perform at their peak in extreme environments, making training for such circumstances crucial. As a result, this project strategically maps current mental processes into a framework, identifying multiple design opportunities to approach chaotic accident scenes. The framework acts as the basis for defining a curriculum, which, using Instructional Design principles, develops into a learning programme that highlights how learners experience training activities to modify communication habits and on-scene behaviour. A three-part toolkit embodies this learning programme, functioning as a sensory guide to explicitly direct attention at pre-, mid- and post-procedure interaction events between team members.

Introduction: Resuscitative Endovascular Balloon Occlusion of the Aorta (REBOA) is an endovascular technique for temporarily stabilizing hemodynamically unstable patients until permanent interventions can be performed. The benefits of in-hospital REBOA to control hemorrhage in different areas is now well studied, yet little is known about its use and indications in the pre-hospital setting. Aim: The aim of this study is to analyze if mortality amongst trauma patients who receive in-hospital REBOA is affected by total pre-hospital time (TPT) and if earlier prehospital REBOA intervention could be beneficial. Methods: A retrospective analysis using the ABOtrauma registry, an international registry for trauma patients that receive REBOA. There were 314 patients in the registry, 168 patients excluded because of missing data, wrong input, TPT < 15minuts or TPT > 120 minutes. The remaining 146 included were divided into 4 groups. Statistically analyzed using chi-square test for association or binomial logistic regression. Results: We found no significant correlation between TPT and mortality amongst the time groups that received in-hospital REBOA, at the emergency department (p=0.293), at 24 hours (p=0.209) or at 30 days (p=0.385), nor between time of injury and ABO insertion at 24 hours (p=0.917), or 30 days (p=0.840). Conclusion: Our findings suggests that pre-hospital time may not be a good indicator for survival amongst patients that receive in-hospital REBOA and that these patients might possibly have had a similar outcome even if earlier intervention of pre-hospital REBOA was performed. Future prospective randomized controlled trails on the subject is needed to draw certain conclusions.