✕
☰

What is a Heart Attack?

Heart attacks are a leading killer of both men and women. Each year, more than 1 million people in the United States have a heart attack, and about half of them die. A heart attack happens when the flow of oxygen-rich blood in one or more of the coronary arteries suddenly becomes blocked and a section of heart muscle can’t get enough oxygen. The blockage is usually caused when a plaque (fatty deposit) ruptures. If blood flow isn’t restored quickly, either by a medicine that dissolves the blockage or a catheter placed within the artery that physically opens the blockage, the section of heart muscle begins to die. A heart attack is an emergency, so call 911 right away if you experience any of the following:

If you or someone you know might be having a heart attack, call 9-1-1 right away. Also call 9-1-1 if you are taking prescription drugs for angina (chest pain) and the pain doesn’t go away as usual after you take the medication. You need to take an ambulance to the hospital as soon as possible. Do not try to drive yourself, and do not have someone else drive you unless there is no ambulance service where you live. While waiting for the ambulance, the patient can be given one regular strength or baby aspirin and told to chew and swallow it if possible.

The sooner you get to a hospital, the more emergency medical professionals can do to stop any heart damage and prevent deadly heart rhythm problems, heart failure, and death. If blood flow in the blocked artery can be restored quickly, permanent heart damage may be prevented. Yet, many people do not seek medical care for 2 hours or more after symptoms start.

The good news is that excellent treatments are available for heart attacks. These treatments—which work best when given right after symptoms occur—can save lives and prevent disabilities.

Source: National Institute on Aging. To learn more about heart attacks, visit the National Heart, Lung, and Blood Institute.

Back to topbutton