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Arterial occlusion is a condition involving partial or complete blockage of blood flow through an artery. Arteries are blood vessels that carry oxygenated blood to body tissues. [ 1 ] [ 2 ] An occlusion of arteries disrupts oxygen and blood supply to tissues, leading to ischemia . [ 1 ]
The small blood vessels form a natural bypass of the blockage, but often do not supply enough blood to meet an increased demand when stressors are applied like exercise. [8] When a plaque has a greater than 50% diameter stenosis, the reduced blood flow through the coronary artery during exertion may lead to angina. [10]
Over time, arteries that carry blood throughout the body get filled with a sticky material called plaque, which is made of materials like cholesterol, calcium and fibrin. To some degree, clogged ...
Vascular occlusion is a blockage of a blood vessel, usually with a clot. It differs from thrombosis in that it can be used to describe any form of blockage, not just one formed by a clot. When it occurs in a major vein , it can, in some cases, cause deep vein thrombosis .
Atherosclerosis is characterized by the build-up of plaque inside your blood vessels. It can lead to stenosis, which is a narrowing of your artery walls. Plaque is a fatty substance made up of:
The thrombus then travels downstream to other blood vessels, where the blood clot may partially or completely block blood flow. If the blood flow is completely blocked, cell deaths occur due to the lack of oxygen supply to nearby cells, resulting in necrosis. [82] The narrowing or obstruction of blood flow can occur in any artery within the body.
The relatively narrow coronary arteries are commonly affected by atherosclerosis and can become blocked, causing angina or a heart attack. The coronary arteries are classified as "terminal circulation", since they represent the only source of blood supply to the myocardium; there is very little redundant blood supply, that is why blockage of ...
Chris Kirmsse's blood pressure was 200/100. Daughter Christine made her go to the ER where Chris learned she had had a heart attack and three blocked arteries.
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