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About Your Condition

Because you have recently experienced a heart attack or heart-related chest pain while at rest (unstable angina) and undergone angioplasty, it's important to know all you can so that you are better prepared to take care of your heart and your health. As always, if you have questions or concerns, you should speak with your doctor.

What is acute coronary syndrome (ACS)?
This is a general term used to describe the chest pain or discomfort associated with unstable angina and acute myocardial infarction. This chest pain is due to insufficient blood supply to the heart muscle from a complete or partial blockage (clot) in a coronary artery.

What is unstable angina?
Unstable angina is a type of heart-related chest pain that is unexpected and usually occurs while at rest. People who suffer from unstable angina often describe it feeling like a heaviness or tightness in the chest, aching or squeezing, or a fullness or burning of the chest. It may also include pain in the arm or forearm.

What is acute myocardial infarction?
This is a medical term for a heart attack, which occurs when the blood supply to part of the heart muscle itself—the myocardium—is severely reduced or stopped.

Recognize the symptoms of a heart attack
Despite the steps you are taking to ensure your heart stays healthy, it is still important that you remain cautious and be aware of the symptoms of another heart attack. Symptoms that can occur with a heart attack include but are not limited to:

  • Angina (chest pain) is the most common
  • Pain in the neck, shoulder, and arm
  • Shortness of breath
  • Weakness or dizziness
  • Nausea
  • Sweating
  • Palpitations (irregular heartbeats, skipped beats, or a "flip-flop" feeling in your chest)
  • A faster heartbeat

If you are experiencing symptoms of a heart attack, do not drive yourself to the hospital. Instead, call EMS (Emergency Medical Services)—or the equivalent 9-1-1 service in your area—immediately. Not only can these medical professionals get you to the hospital, but they are trained to provide care to heart patients. Do not wait to get help.

To learn more about your condition, contact your doctor.

Learn what to do your first few weeks at home.

Watch a video that shows how ACS and unstable angina lead to a heart attack.
View this video

In the United States, more than a million people have a heart attack each year.