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A heart attack is known medically as a myocardial infarct. In this situation, blood flow to the heart muscle itself is blocked and the heart muscle affected becomes starved for oxygen. In general, some damage is permanent, but the degree of damage is based upon what vessel was blocked, the percentage that was blocked and how long the blockage was in place. In this context, "damage" means "death of heart muscle cells".

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12y ago

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