Clinical Research Details Clinical Research Aortic Occlusion for Resuscitation in Trauma and Acute Care Surgery (AORTA): A prospective observational study of the Endovascular Skills in Trauma and Resuscitative Surgery (ESTARS) Working Group Study Description Observation of outcomes for Aortic occlusion for resuscitation in trauma and acute care surgery. Inclusion/Exclusion Criteria Inclusion Criteria: 1. All adult (Age ≥ 18) trauma and acute care surgery patients treated with resuscitative Aortic Occlusion (AO) (via open or endovascular means) in the acute phases after injury Exclusion Criteria: 1. None Investigators David J. Skarupa, M.D., FACS, FCCM Surgery