A method for treating cardiac arrest includes defibrillating the patient and/or ventilating the patient and/or administering a cardiac arrest drug such as epinephrine to resuscitate the patient, and then cooling the patient's body temperature using one or more cooling catheters (51, 52) placed in the central venous system and/or particularly cooling the patient's brain temperature using a catheter in the aortic arch or carotid artery.
