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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 ]
Arterial thromboembolism (ATE) is a less common but more severe form of thromboembolism, which can affect various organs, such as the brain, heart, kidneys, limbs, and mesentery. ATE can cause life-threatening conditions, such as stroke, myocardial infarction, acute kidney injury, limb ischemia, and mesenteric ischemia.
Alternatively, arterial occlusion occurs as a consequence of embolism of blood clots originating from the heart ("cardiogenic" emboli). The most common cause is atrial fibrillation, which causes a blood stasis within the atria with easy thrombus formation, but blood clots can develop inside the heart for other reasons too as infective endocarditis.
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 .
Possible complications of arterial embolism depend on the site of the obstruction: In the heart it can cause myocardial infarction [2] In the brain, it can cause a transient ischemic attack (TIA), [2] and, in prolonged blood obstruction, stroke. [2] Blockage of arteries that supply arms or legs may result in necrosis and gangrene [1]
Ischemia is a vascular disease involving an interruption in the arterial blood supply to a tissue, organ, or extremity that, if untreated, can lead to tissue death. It can be caused by embolism, thrombosis of an atherosclerotic artery, or trauma. Venous problems like venous outflow obstruction and low-flow states can cause acute arterial ischemia.
Other causes include vasculitis and in situ thrombosis related to hypercoagulable states. [53] Additional mechanisms of peripheral artery disease include arterial spasm and fibromuscular dysplasia. [19] The cause and pathophysiology of arterial spasm are not fully understood, but it is hypothesised that they can occur secondary to trauma. [54]
Evidence remains inconclusive about whether these risks outweigh the benefit of a coronary arterial stent. [3] [4] Inflammation may play a causal role in coronary artery disease and subsequent myocardial infarction due to coronary thrombosis. Increased levels of inflammation may lead to higher risk of clotting as well as an increased risk of ...
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related to: arterial occlusive events causes- 262 Neil Avenue # 430, Columbus, Ohio · Directions · (614) 221-7464