Purpose of study: Analyze prognosis and characteristics of patients who have suffered from a cardio-respiratory failure out of hospital undergoing therapeutic hypothermia. Material and methods: Retrospective transverse study of 49 patients admitted from 2011 with CPR diagnosis subject to hypothermia fulfilling inclusion criteria. Results: 38 men (77.55%) and 11 women (22.45%) were studied. The average person was 60.63 years old (11.78). 17 people were under 53 years (×34.69), 15 between 53–65 (×30.61), and 17 older than 65 (×34.69). The admission time of 50% was 13 days (×15,136). Time from the beginning of the CPR to the monitoring of 50% was 10min (×11,666). Time between monitoring beginning until hypothermia beginning in 50% was 20min (×20,174). 14 People died (28.57%) and 35 survived (71.43%). Conclusions: Hypothermia is an option that should be considered in the context of a protocol for comprehensive care to this kind of patients that ranges from the first outpatient care to the overheating phase.