Heart Disease Guide

Heart Disease Facts & Resources from Health Issues Today

Heart Disease Information

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Coronary Heart Disease

Coronary artery disease (CAD) occurs when the arteries that supply blood to the heart muscle (coronary arteries) become hardened and narrowed. The arteries harden and become narrow due to the buildup of plaque on the inner walls or lining of the arteries (atherosclerosis). Blood flow to the heart is reduced as plaque narrows the coronary arteries. This decreases the oxygen supply to the heart muscle.

CAD is the most common type of heart disease. It is the leading cause of death in the U.S. in both men and women.

When blood flow and oxygen supply to the heart are reduced or cut off, you can develop:
  • Angina. Angina is chest pain or discomfort that occurs when your heart is not getting enough blood.

  • Heart attack. A heart attack happens when a blood clot suddenly cuts off most or all blood supply to part of the heart. Cells in the heart muscle that do not receive enough oxygen-carrying blood begin to die. This can cause permanent damage to the heart muscle.
Over time, CAD can weaken your heart muscle and contribute to:
  • Heart failure. In heart failure, the heart is not able to pump blood to the rest of the body effectively. Heart failure does not mean that your heart has stopped or is about to stop working. But it does mean that your heart is failing to pump blood the way that it should.

  • Arrhythmias. Arrhythmias are changes in the normal rhythm of the heartbeats. Some can be quite serious

Author: encyclopedia
coronary heart disease Related: Pathology see coronary artery disease . ...

Heart Disease Additional Information

  • congenital heart disease
    heart disease Related: Pathology any of several abnormalities of the heart and its function in maintaining blood circulation. Heart disease is the cause of approximately half the deaths in the United States each year. Among the most common causes of heart disease are degenerative changes in the coronary blood vessels, infectious diseases, and congenital heart disease . Congenital defects result from abnormal development of the fetal heart, commonly in the valves or septa. Such defects can be precipitated by environmental conditions in the uterus, such as the presence of the rubel ...
    Author: encyclopedia
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  • coronary heart disease
    coronary heart disease Related: Pathology see coronary artery disease . ...
    Author: encyclopedia
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  • coronary artery disease
    coronary artery disease Related: Pathology condition that results when the coronary arteries are narrowed or occluded, most commonly by atherosclerotic deposits of fibrous and fatty tissue. Coronary artery disease is the most common underlying cause of cardiovascular disability and death. Men are affected about four times as frequently as women; before the age of 40 the ratio is eight to one. Other predisposing factors are lack of blood supply; spasms in the coronary vessels, which cause and/or are caused by hypertension; diabetes; high cholesterol levels; adverse physical reactions ...
    Author: encyclopedia
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    See entire summary of Heart Disease and Heart Attack Articles