http://74.125.155.132/scholar?q=cache:ZNOvlaxp0p8J:scholar.google.com/&hl=en&as_sdt=2000

Conclusions: In a systematic series of studies in dogs, the rapid induction of profound cerebral hypothermia (tympanic temperature 10°C) by aortic flush of cold saline immediately after the start of exsanguination cardiac arrest-which rarely can be resuscitated effectively with current methods-can achieve survival without functional or histologic brain damage, after cardiac arrest no-flow of 60 or 90 mins and possibly 120 mins. The use of additional preservation strategies should be pursued in the 120-min arrest model.