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Table 1 Inclusion and exclusion criteria

From: A national multi centre pre-hospital ECPR stepped wedge study; design and rationale of the ON-SCENE study

Inclusion criteria

Exclusion criteria

Witnessed out of hospital cardiac arrest

ROSC ≤ 20 min

 ≥ 18 ≤ 50 years (known or estimated)

Expected time from collapse to arrival at an ECPR centre with a direct available ECPR team is less than 30 min.

Initial rhythm of (p)VT /VF or suspected PE

EtCO2 et < 1.2 kPa (10 mmHg) during CPR

Refractory cardiac arrest ≥ 20 min ≤ 45 min

No clear ultrasound visualisation of either the femoral artery or the femoral vein.

Following initial inclusion, the following patients will be eliminated as soon as the following details are made available

Active malignancy

Cerebral vascular accident < 6 weeks

Patients with a “do not resuscitate” order, which was not known at time of the arrest

  1. (p)VT (pulseless) Ventricular Tachycardia, VF Ventricular Fibrillation, PE Pulmonary Embolism, ROSC Return of Spontaneous Circulation, ECPR Extracorporeal Cardiopulmonary Resuscitation, CPR Cardiopulmonary Resuscitation, kPa Kilopascal