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Infarction is tissue death due to a lack of oxygen caused by an obstruction of the tissue's blood supply. The clinical effects of infarction depend on the location and severity of the infarction. For example, a myocardial infarction (heart attack) occurs when blood flow to the heart is blocked, causRead more
Infarction is tissue death due to a lack of oxygen caused by an obstruction of the tissue’s blood supply. The clinical effects of infarction depend on the location and severity of the infarction. For example, a myocardial infarction (heart attack) occurs when blood flow to the heart is blocked, causing tissue in the heart muscle to die. Symptoms may include chest pain, sweating, nausea or vomiting, and fainting. A pulmonary infarction occurs when blood flow to the lungs is blocked, causing tissue in the lungs to die. Symptoms may include coughing or spitting up blood and shortness of breath.
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The factors that influence infarction depend on the location and type of infarction. For example, a myocardial infarction (heart attack) is usually caused by a buildup of fat, cholesterol, and other substances in the heart's (coronary) arteries. This buildup forms plaques that can rupture and form aRead more
The factors that influence infarction depend on the location and type of infarction. For example, a myocardial infarction (heart attack) is usually caused by a buildup of fat, cholesterol, and other substances in the heart’s (coronary) arteries. This buildup forms plaques that can rupture and form a clot that blocks blood flow to the heart. Many risk factors for myocardial infarction are potentially modifiable, with the most important being tobacco smoking (including secondhand smoke), obesity, lack of physical activity, and alcohol use.
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