Emergency Preservation and Resuscitation (EPR) is a research study that will be performed to see if cooling trauma victims who have suffered a cardiac arrest for bleeding can help them survive. Animal studies show that cooling could protect vital organs until the surgeons have time to stop the bleeding and restore normal blood volume. This procedure would be performed only when all other regular treatment and resuscitation procedures were unsuccessful. If the cooling procedure is not done on these patients the risk of death is 100%.
You can learn more about the study on the EPR trial website.