Critical Care Helicopter Overtriage: A Failure Mode and Effects Analysis

Overtriage (OT) of helicopter emergency medical services (HEMS) poses significant burden to multiple stakeholders. The project aims were to identify the following: 1) associated factors, 2) downstream effects, and 3) focus areas for change.

We undertook a failure mode and effects analysis (FMEA) to evaluate our HEMS interfacility transport process. Data were collected from organizational finances and 3 key stakeholder groups: 1) interfacility patients transferred by HEMS in 2017 who were discharged from the receiving facility within 24 hours (n = 149), 2) flight registered nurses (n = 19), and 3) referring emergency medicine providers (EMPs) (n = 30) from the top HEMS users of 2017. The completed FMEA identified failure modes, the frequency and severity of effects, and unique risk profile numbers (RPNs).

Twelve failure modes were identified with 30 potential causes. Leading failure modes included inappropriate HEMS requests by EMPs (RPN = 343), inappropriate activation by EMS for interfacility transport (RPN = 343), and minimizing patient/family involvement in decision making (RPN = 315). Significant burdens to organizational finances and flight registered nurse satisfaction were identified.

Associated factors for interfacility HEMS OT, downstream effects, and areas for change were identified. EMP and emergency medical services practices, HEMS processes, and shared decision making may affect regional OT rates.