"The primary goal of Early Heart Attack Care is to promote public awareness that heart attacks have "beginnings" that can occur weeks before the actual attack. EHAC focuses on intervention during these beginnings to help prevent acute myocardial infarction (heart attack) and cardiac arrest." Source
"Cardiac arrest – an electrical malfunction in the heart that causes an irregular heartbeat (arrhythmia) and disrupts the flow of blood to the brain, lungs and other organs – is a leading cause of death. Each year, more than 350,000 EMS-assessed out-of-hospital cardiac arrests occur in the United States.
When a person has a cardiac arrest, survival depends on immediately receiving CPR from someone nearby. According to the American Heart Association, about 90 percent of people who suffer out-of-hospital cardiac arrests die. CPR, especially if performed immediately, can double or triple a cardiac arrest victim’s chance of survival." Source