Tema 16. Coronary Circulation Comisión Papanicolaou Unit 16. Coronary Circulation 1. Morfofunctional
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ABSTRACT Coronary artery disease (CAD)‚ also known as coronary heart disease (CHD) or coronary atherosclerosis‚ involves the progressive narrowing of the arteries that nourish the heart muscle. Often there are no symptoms‚ but if one or more of these arteries become severely narrowed‚ angina may develop during exercise‚ stress‚ or other times when the heart muscle is not getting enough blood. Your coronary arteries are the major blood vessels that supply your heart with blood‚ oxygen and nutrients
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Coronary artery disease (CAD) is a progressive disease that causes narrowing or occlusion of the coronary arteries‚ causing a decreased blood supply to the myocardial layer of the heart‚ and prevents the arteries from dilating. As a result the tissue is deprived of oxygen necessary to thrive‚ which in turn can lead to myocardial ischemia‚ leading to several types of infarctions. Depending on the area of the ischemia‚ there can be several complications. For example‚ a ST segment elevation myocardial
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Pd. 6 Coronary Artery Disease Coronary heart disease (CHD)‚ also called coronary artery disease‚ is a condition in which plaque builds up inside the coronary arteries. These arteries supply oxygen-rich blood to your heart muscle. This plaque is made up of fat‚ cholesterol‚ calcium‚ and other substances found in the blood. When plaque builds up in the arteries‚ the condition is called atherosclerosis‚ the buildup of plaque occurs over many years. Over time‚ the plaque hardens which causes your coronary
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Coronary arteries supply the heart with a constant supply of blood. These arteries are essential‚ providing oxygen and nutrients that keep the heart constantly pumping. Arteries have three layers including the external layer‚ tunica external‚ middle layer‚ tunica media and the inner layer‚ called the tunica intima. The outer layer is made up of connective tissue with elastic and collagenous fibers. Tunica media is the thickest layer composed of smooth muscle and can change the diameter of the arteries
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Coronary Artery Disease Coronary artery disease Definition “Coronary artery disease is a type of blood vessel disorder that is included in the general category of atherosclerosis. Atherosclerosis is derived from two Greek words: athero‚ meaning “fatty mush” and skleros‚ meaning “hard.” Atherosclerosis is often referred to as “hardening of the arteries.” Although this condition can occur in any artery in the body‚ the atheromas (fatty deposits) have a preference for coronary arteries”(Lewis &
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The treatment choice of coronary artery disease depends on the severity of the disease. Treatments include‚ but are not limited to lifestyle changes‚ drug therapy‚ percutaneous transluminal coronary angioplasty‚ and coronary bypass surgery. CAD is a chronic disease that will require lifelong care‚ it can be treated which aids in progression‚ but there is no cure. Although coronary artery disease cannot be cured‚ adequate lifestyle changes can prevent the disease from developing. Some of these lifestyle
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and Blood Institute states that “more than a million persons in the U.S. have a heart attack and about half (515‚000) of them die in each year. About one-half of those who die do so within 1 hour of the start of symptoms and before reaching the hospital”. A heart attack happens to a person when the blood flow and oxygen supply to heart muscle is blocked‚ and it is mostly caused by the Coronary Artery Disease (CAD). CAD occurs when the arteries that supply blood to the heart muscle (coronary arteries)
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Coronary heart disease is the buildup of plaque in the heart’s arteries that could lead to a myocardial infarction. However‚ coronary heart disease‚ or CHD‚ is actually a result of coronary artery disease‚ or CAD. With coronary artery disease‚ plaque accumulates within the walls of the coronary arteries until the blood flow to the heart is limited‚ causing ischemia. It may be chronic‚ caused by narrowing of the coronary artery over time. It can be acute‚ resulting from a sudden rupture and formation
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January 21‚ 2014 Coronary Artery Disease (CAD)‚ is a condition in which plaque builds up inside the coronary arteries. These arteries supply oxygen-rich blood to your heart muscle. This plaque is made up of fat‚ cholesterol‚ calcium‚ and other substances found in the blood. When plaque builds up in the arteries‚ the condition is called atherosclerosis‚ the buildup of plaque occurs over many years. Over time‚ the plaque hardens which causes your coronary arteries to narrow‚ which limits the
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