myocardial infarction |
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| navigate by keyword : abnormal anatomy anxiety aorta arms atria atrium attack atypical blocks blood bloodclot chest clot diesnsymptoms emergency fatigue flow heart heartattack heartbeat human include infarction infection lightheadedness medical muscles myocardial neck necrosis organ oxygen pain pulmonary symptoms tightness tissue venacava ventricles women |
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| A heart attack is a medical emergency. A heart attack usually occurs when a blood clot blocks blood flow to the heart. Without blood, tissue loses oxygen and dies. Symptoms include tightness or pain in the chest, neck, back or arms, as well as fatigue, lightheadedness, abnormal heartbeat and anxiety. Women are more likely to have atypical symptoms than men. |
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