A few years back while recertifying, I got interested in what the world record was for longest successful CPR recovery. Longest I could find was this 4-hours i

A few years back while recertifying, I got interested in what the world record was for longest successful CPR recovery. Longest I could find was this 4-hours incident, involving someone who'd gone into hypothermia some hours before: http://www.cbc.ca/news/canada/british-columbia/christine-tink-newman-s-medical-miracle-revived-from-near-death-1.2591379 http://www.cbc.ca/news/canada/british-columbia/christine-tin... I think I read somewhere else the lowered body temperature contributed to her surviving long enough for rescue.