Heart

Myocardial infarction

Myocardial infarction

A myocardial infarction (commonly called a heart attack) is an extremely dangerous condition caused by a lack of blood flow to your heart muscle. The lack of blood flow can occur because of many different factors but is usually related to a blockage in one or more of your heart's arteries.

  1. What is the main cause of a myocardial infarction?
  2. What is the difference between a heart attack and a myocardial infarction?
  3. What happens during myocardial infarction?
  4. What are the warning signs of a myocardial infarction?

What is the main cause of a myocardial infarction?

A heart attack occurs when one of the heart's coronary arteries is blocked suddenly or has extremely slow blood flow. A heart attack also is called a myocardial infarction. The usual cause of sudden blockage in a coronary artery is the formation of a blood clot (thrombus).

What is the difference between a heart attack and a myocardial infarction?

Ischemia results when the heart muscle is starved for oxygen and nutrients. When damage or death of part of the heart muscle occurs as a result of ischemia, it's called a heart attack, or myocardial infarction (MI). About every 40 seconds, someone in the United States has a heart attack.

What happens during myocardial infarction?

If a blood clot totally blocks the artery, the heart muscle becomes "starved" for oxygen. Within a short time, death of heart muscle cells occurs, causing permanent damage. This is called a myocardial infarction (MI), or heart attack.

What are the warning signs of a myocardial infarction?

What are the symptoms of heart attack?

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