Helicopter Emergency Medical Services for Trauma: An Update

Purpose of ReviewHelicopter emergency medical services (HEMS) have become a well-established component of most contemporary trauma systems throughout the world. HEMS is associated with significant costs, safety concerns, and potential inappropriate use. In this update, we briefly review the historical context, evidence for clinical effectiveness, and methods for ensuring proper utilization of HEMS.Recent FindingsA recently validated prehospital triage scorethe Air Medical Prehospital Triage (AMPT)is reviewed. Examples of system improvements using evidence-based practices and adherence to both national and local utilization guidelines are also discussed.SummaryAppropriate triage for HEMS use remains an important goal for developed trauma systems. Although associated with significant costs and safety concerns, recent literature has highlighted the association of HEMS with improved outcomes for trauma patients.