Inter-disciplinary cooperation in a physician-staffed emergency medical system

Background: On-scene management of pre-hospital emergencies is often inter-disciplinary, involving ground-emergency medical services (EMS), police- and fire services, and in Norway general practitioners on-call. This can also be supplemented by physician-staffed EMS (P-EMS), utilizing helicopters or rapid response vehicles. We hypothesized that P-EMS cooperates extensively with other emergency services, and therefore the primary aim of this study was to investigate the fraction of inter-disciplinary cooperation between P-EMS and other emergency services.

Methods: Retrospective, observational study of primary pre-hospital missions with patient contact performed at a Norwegian P-EMS base from 01.01.06 to 31.12.15. Descriptive statistics, comparisons using Student`s t-test, and chi-squared test for trend were applied.

Results: Inter-disciplinary cooperation occurred in 94.3% of the 8580 missions, of which physician-staffed EMS cooperated with ground EMS in 92.4%, general practitioner 32.9%, police service 11.6% and fire service 11.8%. Trauma constituted 34.4 and cardiac arrest 14.1% of missions. The mean National Advisory Committee for Aeronautics score was 4.21 (95% Confidence Interval 4.18-4.24). There was an overall decrease in cooperation with general practitioners and the police service (P < 0.001). During helicopter missions, we reported a decrease in general practitioner cooperation compared to an increase during rapid response car missions (P < 0.001). In cardiac arrest cases, cooperation with both general practitioners and the fire service increased (P < 0.001).

Conclusion: Physician-staffed EMS cooperates extensively with other professional emergency services, especially ground-EMS. On-scene cooperation with general practitioners decreased, whereas there was an increased cooperation with the fire service in a "first-responder" role during cardiac arrest missions.