As part of a three-year pilot project, New York City paramedics are training to administer therapeutic hypothermia to cardiac arrest patients. The cooling technique helps lower the body's temperature to minimize the brain's need for oxygen and prevent cell damage, increasing the patient's chances of survival. The technique is now used in 43 city hospitals and has increased survival rates for cardiac arrest patients by 20% from 2008 to 2009, according to city officials.

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