Feasibility Study on a Prehospital Extracorporeal CardioPulmonary Resuscitation in the Pavia's Province.

Inclusion Criteria: * out-of-hospital cardiac arrest occurred in Pavia province * the age of the patient is between 18 and 70 * witnessed cardiac arrest * CPR started within 5 minutes of the patient's collapse or presence of gasping at the arrival of the ACLS team * eCPR team arrived within 60 minutes of the patient's collapse * etCO2 ≥ 10 mmHg * mechanical chest compression is ongoing * refractory cardiac arrest after at least 15 minutes of ACLS Exclusion Criteria: * Modified Rankin Scale (mRS) ≥ 3 * Advanced COPD or other advanced pulmonary illness * End-stage or metastatic neoplasm