Cerebral embolism occurs when a blood clot from elsewhere in the circulatory system breaks free. If it becomes lodged in an artery supplying the brain, either in the brain or in the neck, it can cause a stroke.(CVA)
The most common cause of cerebral embolism is atrial fibrillation, a disorder of the heart beat. In atrial fibrillation, the upper chambers (atria) of the heart beat weakly and rapidly, instead of slowly and steadily. Blood within the atria is not completely emptied. This stagnant blood may form clots within the atria, which can then break off and enter the circulation. Atrial fibrillation is a factor in about 15% of all strokes. The risk of a stroke from atrial fibrillation can be dramatically reduced with daily use of anti-coagulant medication
Diseases. Stroke risk is increased for people with diabetes, heart disease (especially atrial fibrillation), high blood pressure, prior stroke, or TIA. Risk of stroke increases tenfold for someone with one or more TIAs.
Stroke risk increases with obesity, high blood cholesterol level, or high red blood cell count; cigarette smoking (especially if combined with the use of oral contraceptives), low level of physical activity, alcohol consumption above two drinks per day, or use of cocaine or intravenous drugs.
Other causes of cerebral embolism are hemorrhage; Hemorrhage, or bleeding, occurs when a blood vessel breaks, either from trauma or excess internal pressure. The vessels most likely to break are those with preexisting defects such as an aneurysm An aneurysm is a "pouching out" of a blood vessel caused by a weak arterial wall. Brain aneurysms are surprisingly common.
Clots most often form due to "hardening" (atherosclerosis) of brain arteries.
Cerebral thrombosis is often preceded by a transient ischemic attack, or TIA, sometimes called a "mini-stroke." In a TIA, blood flow is temporarily interrupted, causing short-lived stroke-like symptoms
Cerebral Fat Embolism as a Rare Possible Complication of Traumatic Pancreatitis
The surgical procedure of carotid endarterectomy (CEA) itself can produce CVCs( cerebro vascular complications) including disabling stroke and death.
Cerebral embolism is identified but mainly categorized into ischemia from carotid artery clamping, postoperative thrombosis and embolism, and intracerebral hemorrhage.
2007-11-04 21:05:05
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answer #1
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answered by rosieC 7
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2016-05-18 16:24:42
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answer #2
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answered by Arlene 3
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2016-09-17 16:10:40
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answer #3
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answered by ? 3
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Stress can be a major factor. Stress can causes a person to have a stroke. A stroke, sometimes called a "brain attack," occurs when blood flow to an area in the brain is cut off. As a result, the brain cells, deprived of the oxygen and glucose needed to survive, die. If not caught early, permanent brain damage can result.
People who have hypertension are 4 to 6 times more likely to have a stroke. Over time, hypertension leads to atherosclerosis and hardening of the large arteries. This, in turn, leads to blockage and weakening of the walls of small blood vessels in the brain, causing them to balloon and burst. The risk of stroke is directly related to how high the blood pressure is.
2007-11-04 20:42:22
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answer #4
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answered by LC 3
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If it is fresh, red/dark red, and on the outside of the stools, and has not recurred, then it is hemorrhoids or a small tear (fissure). Don't worry, it's harmless. Your abdominal pain is likely unrelated, and could be diet, stress, or any number of things. Your body makes 'noises' all the time, not meaning things you hear, but strange sensations and pains that are usually nothing at all. But if you are concerned, or see black, tarry blood 'IN' your stool, like as a component, then see your doctor.
2016-04-02 05:40:18
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answer #5
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answered by Anonymous
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high blood maybe?
stroke due to hypertension...?
2007-11-04 20:43:04
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answer #6
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answered by Anna Dominique Bautista Santos 2
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