For Heart attack we have terms and definitions in 6 topics. The topics are Cholesterol, Female Health, Health, Huntingtons Disease, Medical and Quitting Smoking.

The death of heart muscle due to the loss of blood supply. The loss of blood supply is usually caused by a complete blockage of a coronary artery, one of the arteries that supplies blood to the heart muscle. Death of the heart muscle, in turn, causes chest pain and electrical instability of the heart muscle tissue.
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A heart attack occurs when the blood flow to a part of the heart is suddenly and permanently cut off, causing permanent damage to the heart muscle. Chest pain is typically severe and does not go away with rest or medicine that is effective with angina. Symptoms may indicate your heart is in danger many months or years before a heart attack occurs. Persistent symptoms, such as shortness of breath, nausea, great fatigue, angina/chest pain, fainting spells and gas-like discomfort - are red flags.
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See myocardial infarction.
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Heart attacks occur when a coronary artery is completely blocked and a portion of the heart muscle is left without a supply of oxygenated blood. If the portion is large enough, the heart attack may be deadly.
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See Myocardial infarction
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The death of heart muscle due to the loss of blood supply. The loss of blood supply is usually caused by a complete blockage of a coronary artery, one of the arteries that supplies blood to the heart muscle. Death of the heart muscle, in turn, causes chest pain and electrical instability of the heart muscle tissue.
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