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How is sudden cardiac arrest different from a heart attack?

April 26, 2017arrest cardiac different Heart Attack Sudden

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How is sudden cardiac arrest different from a heart attack?

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Sudden cardiac arrest is caused by an electrical malfunction of the heart rhythm. A heart attack, or myocardial infarction, is a result of acute ischemia, or lack of oxygen in the heart. A heart attack occurs when the blood supply for part of the heart muscle – the myocardium – is severely reduced or stopped. This occurs when one or more arteries that supplies blood to the heart muscle (coronary artery) is blocked by an obstruction, either of plaque from atherosclerosis, a blood clot, or other causes.