There are standard resuscitation measures practiced by the emergency team reaching for a heart attack patient. First of all is cardiopulmonary resuscitation (CPR).
It has been seen by a group of researchers that after resuscitation of the patient from cardiac arrest if cold saline is infused to induce hypothermia the outcome is better. Better outcome has been seen in rhythm of heart, neurological function and above all the survival.
They studied 227 patients before adopting the protocol and 413 patients after implementation of the protocol and found that overall survival before the protocol was implemented was 17.2%, whereas after it was implemented, overall survival was 28.8%, with an adjusted odds ratio of 1.9 (95% confidence interval).
This was published in Medscape Medical News.