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embolus |
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embolus (ĕm`bələs), foreign matter circulating in and obstructing a blood vessel. It may be a portion of a clot that has separated from the wall of a vessel (see thrombosis thrombosis (thrŏmbō`sĭs), obstruction of an artery or vein by a blood clot (thrombus). ..... Click the link for more information. ), a bubble of gas or air (known as an air embolus), a globule of fat, a clump of bacterial matter, or a clump of tumor cells. It circulates freely through the vessels until it reaches one so small that it cannot go further. An embolus in one of the vessels leading to the lungs, brain, or heart, if large enough, can be fatal; in an arm or leg it may lead to gangrene and, ultimately, the need for amputation. Emergency surgical removal is usually the treatment of choice for a solid embolus. Otherwise, drugs that dilate the vessels and anticoagulants are indicated. embolus material, such as part of a blood clot or an air bubble, that is transported by the blood stream until it becomes lodged within a small vessel and impedes the circulation embolus [′em·bə·ləs] (medicine) A clot or other mass of particulate matter foreign to the bloodstream which lodges in a blood vessel and causes obstruction. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| 7) It has been suggested that patients who do not respond to this strategy should be placed on amikacin therapy and that IJV ligation be employed only after more conservative therapy has been attempted (8) or if evidence of septic emboli appears. Years before, while on a trip from Los Angeles to San Francisco, she had a massive myocardial infarction coupled with pulmonary emboli (blood clots in the lungs). Emboli (clots) can also come from the heart (which happens when patients develop atrial fibrillation--an erratic and inefficient beating of the atria or upper chambers of the heart) or from the aorta (the great vessel exiting the heart). |
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