Acute coronary syndrome (ACS) is a broad term for three types of coronary artery disease that affect millions of people each year. Types of ACS includes:

  • Unstable angina which involves sudden, unexpected chest pain or pressure
  • Non-ST-elevation myocardial infraction(NSTEMI), which is a heart attack meaning the coronary arteries aren’t fully blocked or were blocked for a short amount of time
  • ST-elevation myocardial infraction(STEMI), which is a much more severe heart attack that occurs when blood flow to your heart is fully blocked

These potentially life-threatening conditions occur when a blockage causes blood flow to your heart to suddenly slow or stop.

Acute coronary syndrome is a medical emergency that requires immediate attention.

For more details: Acute Coronary Syndrome (ACS): Causes, Symptoms & Treatment (