coronary heart disease
- or ischemic heart diseaseProgressive reduction of blood supply to the heart muscle due to narrowing or blocking of a coronary artery (see atherosclerosis).Short-term oxygen deprivation can cause angina pectoris. Long-term, severe oxygen depletion causes a heart attack. Coronary bypass or angioplasty is needed if medication and diet do not control the disease.
* * *also called coronary artery disease or ischemic heart diseasedisease characterized by an inadequate supply of oxygen-rich blood to the heart muscle (myocardium) because of narrowing or blocking of a coronary artery by fatty plaques (see atherosclerosis). If the oxygen depletion is extreme, the effect may be a myocardial infarction ( heart attack); if the deprivation is insufficient to cause infarction (death of a section of heart muscle), the effect may be angina pectoris, or spasms of pain in the chest. Both conditions can be fatal because they can cause heart failure or ventricular fibrillation—an uncontrolled and uncoordinated contraction of the ventricles (the lower chambers of the heart) that induces sudden death. Middle-aged men, especially those with a family history of the disease, are particulary vulnerable to developing coronary heart disease, as are individuals with hereditary conditions such as familial hypercholesterolemia (a disorder in which the body's tissues are incapable of removing cholesterol from the bloodstream). coronary artery bypass surgery or balloon angioplasty may be necessary if medications and diet and lifestyle changes such as frequent exercise and cessation of smoking are not effective.
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coronary heart disease — n CORONARY ARTERY DISEASE * * * (CHD) ischemic heart d … Medical dictionary
coronary heart disease — A disease in which there is a narrowing or blockage of the coronary arteries (blood vessels that carry blood and oxygen to the heart). Coronary heart disease is usually caused by atherosclerosis (a build up of fatty material and plaque inside the … English dictionary of cancer terms
coronary heart disease — noun a heart disease due to an abnormality of the arteries that supply blood and oxygen to the heart • Hypernyms: ↑heart disease, ↑cardiopathy • Hyponyms: ↑coronary occlusion, ↑coronary thrombosis, ↑coronary * * * noun see … Useful english dictionary
coronary heart disease — noun Date: 1949 a condition and especially one caused by atherosclerosis that reduces blood flow through the coronary arteries to the heart and typically results in chest pain or heart damage called also coronary artery disease … New Collegiate Dictionary
coronary heart disease — noun Any disease caused by the accumulation of fatty deposits in the coronary arteries that supply blood to the myocardium. Syn: coronary artery disease … Wiktionary
coronary heart disease — noun a heart condition caused by atherosclerosis of the coronary arteries which can result in a heart attack … Australian English dictionary
Coronary artery disease — Classification and external resources Micrograph of a coronary artery with the most common form of coronary artery disease (atherosclerosis) and marked luminal narrowing. Masson s trichrome … Wikipedia
coronary artery disease — n a condition and esp. one caused by atherosclerosis that reduces the blood flow through the coronary arteries to the heart muscle and typically results in chest pain or heart damage called also coronary disease, coronary heart disease * * *… … Medical dictionary
coronary artery disease — CAD. A disease in which there is a narrowing or blockage of the coronary arteries (blood vessels that carry blood and oxygen to the heart). Coronary artery disease is usually caused by atherosclerosis (a build up of fatty material and plaque… … English dictionary of cancer terms
coronary artery disease — noun Any disease caused by the accumulation of fatty deposits in the coronary arteries that supply blood to the myocardium. Syn: coronary heart disease … Wiktionary