Study settings

In collaboration with:


The patient population is adult patients (18 to 80 years of age, as estimated by crew on-scene) that suffers from an out-of-hospital cardiac arrest with assumed non-traumatic origin, as determined by the physician on scene.

Inclusion criteria

The subject must meet all the following criteria to be included in the trial:

  • Age 18 to 80 years
  • Out-of-hospital cardiac arrest
  • Non-traumatic cardiac arrest
  • Witnessed arrest or less than 10 minutes from debut of arrest to start of basic or advanced cardiac life support
  • Commenced ACLS is established and can be continued
Exclusion criteria

Fulfilling one criterion excludes the subject to be included in this trial.

  • Age less than 18 years or above 80 years
  • Traumatic cardiac arrest, including strangulation, electrocution and patients rescued from avalanches
  • Hypothermia, including drowning
  • Pregnancy, obvious or suspected
  • Suspected cerebral haemorrhage as aetiology of the arrest
  • Unable to perform ACLS as per national guideline
  • Patient included to the study site’s E-CPR protocol
  • Other factors as decided by the treatment team (environmental factors, safety factors and others)