Myocardial infarction

A blockage of blood flow to the heart, also known as a heart attack.


Heart attack (myocardial infarction) usually occurs when a blood clot blocks blood flow to the heart. Without blood, tissue loses oxygen and dies. A heart attack is a medical emergency.


Symptoms include tightness or pain in the chest or arms, indigestion, and shortness of breath.


Treatment ranges from medications to surgical procedures.

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