According to these guidelines, patients were eligible for ECLS support if vital signs were still present during cardiopulmonary resuscitation (CPR), or if cardiac arrest was secondary to intoxication or hypothermia (≤32°C).  Causes of OHrCA included intoxication, isolated hypothermia <32°C, acute coronary syndrome, pulmonary edema, and other cardiac pathology.  Despite adherence to protocols, only two patients (6.2%) with hypothermia and acute myocardium ischemia, respectively, could be discharged from hospital after cardiac recovery. 
THERM