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What causes chest pain and shortness of breath in Myocardial Infarction?

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nessa1 | Student, Undergraduate | eNotes Newbie

Posted June 8, 2009 at 10:45 PM via web

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What causes chest pain and shortness of breath in Myocardial Infarction?

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lit24 | College Teacher | (Level 3) Valedictorian

Posted June 10, 2009 at 11:01 PM (Answer #1)

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Coronary arteries are the blood vessels which supply the heart muscle with blood and oxygen. When a blood clot blocks the coronary artery, the blood supply and oxygen supply to the heart muscle are cut off resulting in injury to the heart muscle. This in turn causes severe chest pain and shortness of breath.

If the blood supply is not restored quickly, irreversible death of the heart muscle will occur resulting in scarring of the heart muscle.

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