what is an occlusion of an artery
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Coronary Artery Chronic Total Occlusion Coronary artery chronic total occlusion (CTO) is complete or almost complete blockage of a coronary artery for 30 or more days. Coronary CTO is caused by a heavy build-up of atherosclerotic plaque within the artery.
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Thrombosis Arterial thrombosis is the formation of a thrombus within an artery. In most cases, arterial thrombosis follows rupture of atheroma (a fat-rich deposit in the blood vessel wall), and is therefore referred to as atherothrombosis.
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- Occlusion (usually embolic, but can be thrombotic, inflammatory or traumatic) of the bloodflow in the retinal blood vessel. The main artery supplying the globe is the ophthalmic artery. The portion of the ophthalmic artery that enters the eye at the optic nerve is called the central retinal artery (CRAO).
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MayoClinic Health Library Renal artery stenosis is the narrowing of one or more arteries that carry blood to your kidneys (renal arteries). Narrowing of the arteries prevents normal amounts of oxygen-rich blood from reaching your kidneys. Your kidneys need adequate blood flow to help filter waste products and remove excess fluids.
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An Overview of Occlusive Arterial Disease Occlusive arterial disease is a general term for any condition that causes a blockage of arteries in any part of the body.It can be a serious disorder because a block in circulation can lead to complications including organ failure and death.cclusive arterial disease is a general term for any condition that causes a blockage of arteries in any part of the body.
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- Branch retinal artery occlusion (BRAO) is a rare retinal vascular disorder in which one of the branches of central retinal artery is obstructed. 1 Epidemiology.
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Artery Occlusion and Bypass for Aneurysms Artery occlusion and bypass is a two-part procedure combining open microsurgery and endovascular coiling. The purpose of this procedure is to coil the entire diseased portion of the blood vessel and then bypass the blood flow to the specific location in the brain.
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Retinal Artery Occlusion Those which make other debris more likely to break off into the bloodstream. 1  Debris (such as fatty plaques or infected material) may detach and form loose bits of material (emboli) which can lodge in the retinal artery: 2  Atherosclerosis. This accounts for about 8 out of every 10 cases.
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Carotid Artery Disease (Stroke Prevention) Carotid artery disease is also called carotid artery stenosis. The term refers to the narrowing of the carotid arteries. This narrowing is usually caused by the buildup of fatty substances and cholesterol deposits, called plaque. Carotid artery occlusion refers to complete blockage of the artery. When the carotid arteries are obstructed, you are at an increased risk for a stroke, the third leading cause of death in the U.S.
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Central retinal artery occlusion Central retinal artery occlusion (CRAO) is a disease of the eye where the flow of blood through the central retinal artery is blocked (occluded).igns and symptoms [edit]. Central retinal artery occlusions cause sudden, acute, and painless loss of vision in one eye. Fundoscopic exam will show a red lesion, called a cherry red spot, with surrounding pale retina (the pale color is caused by ischemia of the retina).
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- Vertebral artery dissection, like arterial dissection elsewhere, is a result of blood entering the media through a tear in the intima.It is potentially lethal and can be difficult to diagnose clinically and radiologically.s with other arterial dissections, blood enters the wall of the artery through a tear in the intima, and dissects along the intima-media plane. As the blood expands the wall, it compromises the lumen resulting in stenosis or occlusion.
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- Carotid artery stenosis. Carotid stenosis is a narrowing or constriction of the inner surface (lumen) of the carotid artery, usually caused by atherosclerosis.
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- Print a Message in Yahoo! To print a conversation or email from Yahoo! Mail: 1  Open the message you want to print in Yahoo! 2  Mail. 3  Press P. 4  You can also click More | Print in the toolbar. 5  To print an individual message from a conversation: 6  Click More at the bottom of the email you want to print.ail Basic (similar to Yahoo! Mail Classic): 1  Open the message you want to print in Yahoo! 2  Follow the Printable View link. 3  Print the message using the printing dialog that appears. 4  Close the printing view's tab or window.
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- An aneurysm is an arterial condition in which the wall of an artery weakens, creating a bulge, or distension of the artery.4,5. A comparison between an artery with an aneurysm and two different types of artery.
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Intracranial artery stenosis Intracranial stenosis is a narrowing of the arteries inside the brain. Similar to carotid stenosis in the neck, it is caused by a buildup of plaque in the inner wall of the blood vessels. This narrowing of the blood vessels causes decreased blood flow to the area of the brain that the affected vessels supply. There are three ways in which intracranial artery stenosis can result in a stroke: Plaque can grow larger and larger, severely narrowing the artery and reducing blood flow to the brain.
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- Retinal vessel occlusion. A retinal vessel occlusion is a blockage in the blood vessels of your eye that can cause sight loss. There are two types of retinal blood vessels, arteries and veins, and either of these can be affected by an occlusion. This information describes these two different types of vessel occlusion and their affect on vision.
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What is the renal artery? Renal artery occlusion is a blockage of the major arteries that supply blood to the kidneys caused by thrombosis or embolism.
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Retinal Vein Occlusion Retinal vein occlusions usually occur because your arteries harden and cause a clot, much like a stroke. Blockages are more common in people with narrowed or damaged blood vessels, or those with chronic conditions that cause them. Such diseases include: atherosclerosis, which is a hardening of the arteries.
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- Carotid artery disease is also called carotid artery stenosis. The term refers to the narrowing of the carotid arteries. This narrowing is usually caused by the buildup of fatty substances and cholesterol deposits, called plaque.Carotid artery occlusion refers to complete blockage of the artery.n this article. Carotid artery disease is also called carotid artery stenosis. The term refers to the narrowing of the carotid arteries. This narrowing is usually caused by the buildup of fatty substances and cholesterol deposits, called plaque. Carotid artery occlusion refers to complete blockage of the artery.
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- Central Retinal Artery Occlusion. When one of the vessels that carries blood to your eye's retina gets blocked, it can cause painless, but usually sudden, vision loss in one eye. Doctors call this a central retinal artery occlusion (CRAO). Click Image to Enlarge.Your retina is the layer of nerves at the back of your inner eye that sense light.Like a tiny video camera, your retina transforms images into electrical signals that your optic nerve carries to your brain. If an occlusion, or blockage of a blood vessel, occurs in your retina, it can be quite serious.entral Retinal Artery Occlusion. When one of the vessels that carries blood to your eye's retina gets blocked, it can cause painless, but usually sudden, vision loss in one eye. Doctors call this a central retinal artery occlusion (CRAO). Click Image to Enlarge.
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Chapter 8 medical terminology - the cardiovascular system a general term for a disease that afflicts the coronary arteries supplying the heart coronary occlusion a blockage within a coronary artery, resulting in a reduced blood flow to an area of the heart muscle
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- Retinal artery occlusion. Retinal artery occlusion is a blockage in one of the small arteries that carry blood to the retina. The retina is a layer of tissue in the back of the eye that is able to sense light. Causes. Retinal arteries may become blocked when a blood clot or fat deposits get stuck in the arteries.
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Vertebral artery dissection Vertebral artery dissection. Vertebral artery dissection (abbreviated VAD, often vertebral dissection) is a dissection (a flap-like tear) of the inner lining of the vertebral artery, which is located in the neck and supplies blood to the brain.
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Background Retinal vein occlusion (RVO) is a common vascular disorder of the retina and one of the most common causes of vision loss worldwide. Specifically, it is the second most common cause of blindness from retinal vascular disease after diabetic retinopathy.
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Arterial Occlusive Disease Arterial Occlusive Disease. Atheroclerosis, or hardening of the arteries, is caused by the accumulation of a fatty substance called plaque on the inside of the walls of the arteries. This is a condition that affects up to 35% of Americans.
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Vertebral artery dissection Vertebral artery dissection is a flap-like tear of the inner lining of the vertebral artery, which is located in the neck and supplies blood to the brain. After the tear, blood enters the arterial wall and forms a blood clot, thickening the artery wall and often impeding blood flow. The symptoms of vertebral artery dissection include head and neck pain and intermittent or permanent stroke symptoms such as difficulty speaking, impaired coordination and visual loss. It is usually diagnosed with a contrast-enhanced CT or MRI scan.