Fig. 3From: Implementation of a mechanical CPR device in a physician staffed HEMS – a prospective observational studyProposed standard operating procedure for HEMS-assisted patients with refractory OHCA in a region without hospitals with ECLS capacity. OHCA out-of-hospital cardiac arrest; ALS advanced life support; ROSC return of spontaneous circulation; ECLS extracorporeal life support; etCO2 end-tidal CO2Back to article page