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About heart attacks

A heart attack, or myocardial infarction, occurs when the heart muscle experiences a severe or prolonged lack of oxygen caused by blocked blood flow.

The blockage is often a result of atherosclerosis – a buildup of plaque made up of fat deposits, cholesterol and other substances.

When a plaque ruptures, a blood clot quickly forms, causing a heart attack. ​


Heart attack treatment


If you or someone you know shows any of warning signs of a heart attack, act immediately and call 911. Immediate treatment for a heart attack is important to preserve heart muscle function.

Treatment plans for patients will be determined by their care team based on age, medical history, type and stage of heart attack and personal preferences. Options may include:

  • Physical therapy
  • Intravenous therapy
  • Medication
  • Rest/lifestyle changes
  • Surgery
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