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Unstable angina; Heart attack; Sudden death caused by lethal arrhythmias.
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An arrhythmia is a disorder of the heart rate (pulse) or heart rhythm, such as beating too fast (tachycardia), too slow (bradycardia), or irregularly.
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An arrhythmia is an abnormality in the heart ' s rhythm, or heartbeat pattern. The heartbeat can be too slow, too fast, have extra beats, skip a beat, or otherwise beat irregularly.
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A heart attack is when low blood flow causes the heart to starve for oxygen. Heart muscle dies or becomes permanently damaged. Your doctor calls this a myocardial infarction.
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A heart attack is the death of, or damage to, part of the heart muscle because its blood supply is severely reduced or stopped. Heart attack is the leading cause of death in the United States.
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A heart attack is the death of, or damage to, part of the heart muscle because the supply of blood to the heart muscle is severely reduced or stopped. Heart attack is the leading cause of death in the United States.
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A myocardial infarction, or heart attack, is the death or damage of part of the heart muscle because the supply of blood to the heart muscle is severely reduced or stopped. Myocardial infarction (MI) is the leading cause of death in the United States.
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Unstable angina is a type of acute chest pain that occurs when your heart doesn't get enough oxygen. It can be a warning sign of a heart attack. See also: Stable angina; Variant angina.
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