Aviation Medicine

An analysis of a single helicopter emergency medical service (HEMS) in South East England found 30-day survival among major trauma patients was higher than predicted by standard risk models, equivalent to about five additional survivors per 100 patients treated. The study, published online in the Emergency Medicine Journal, also reported improving rates of return of spontaneous circulation in traumatic cardiac arrest over the 2013–2022 period, while cautioning the findings do not prove the helicopter service caused the better outcomes.