Prehospital Resuscitation On Helicopter Study

All patients arriving to the participating center's trauma emergency department via helicopter directly from the scene will be screened and initial data collected. Of that group, all patients who meet the "highest risk" category (based on vital signs, type of injury, use of tourniquet, and/or intubation) or received blood during transport will be followed through "direct observation" through the initial resuscitation period and then indirectly through medical chart review until hospital discharge or 30 days after admission (whichever occurs first).

Inclusion criteria

Criteria for "at risk" population

• Patients with traumatic injuries received directly from the scene via air ambulance service (did not receive a lifesaving intervention at an outside hospital or healthcare facility)
• Estimated age of 15 or older or greater than/equal to a weight of 50 kg, if age unknown Criteria for "highest risk" population
• Meet at least one of the following during prehospital care: HR >120 bpm, SBP ≤90 mmHg, penetrating truncal injury, tourniquet application, pelvic binder application or intubation.
• Received blood products during transport (for those facilities with blood product availability)

Exclusion criteria

• Prisoners (defined as those received directly from a correctional facility.