Heart AttackA heart attack or acute myocardial infarction (MI) occurs when one of the arteries that supplies the heart muscle becomes blocked. This blockage deprives the heart of oxygen, causing damage to your heart muscle. Recognizing and treating a heart attack right away improves your chance for survival.
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Symptoms vary from minor to crippling pain, and can come on immediately or over time. They include:
- Pain, tightness or squeezing in the chest
- Pain and discomfort that radiates to arms, shoulders, neck or jaw
- Shortness of breath with or without chest discomfort
- Indigestion or fullness in stomach or chest that may feel like heartburn
- Cold sweat
- Back pain
- Irregular heartbeat