   HeartAttack
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Sigma KEE - HeartAttack
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HeartAttack
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A myocardial infarction (MI), commonly known as a heart attack, occurs when blood flow decreases or stops to a part of the Heart, causing damage to the heart muscle. The most common symptom is ChestPain or discomfort which may travel into the shoulder, arm, back, neck or jaw. Often it occurs in the center or left side of the chest and lasts for more than a few minutes. The discomfort may occasionally feel like heartburn. Other symptoms may include shortness of breath, nausea, feeling faint, a cold sweat or feeling tired. About 30% of people have atypical symptoms. Women more often present without chest pain and instead have neck pain, arm pain or feel tired. Among those over 75 years old, about 5% have had an MI with little or no history of symptoms. An MI may cause heart failure, an irregular heartbeat, cardiogenic shock or cardiac arrest.[from Wikipedia]
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A disordered process, activity, or state of the Organism as a whole, of a body system or systems, or of multiple Organs or Tissues. Included here are normal responses to a negative stimulus as well as patholologic conditions or states that are less specific than a disease. Pathologic functions frequently have systemic effects.
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