embolus


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Related to embolus: thromboembolus

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 thrombosisthrombosis
, obstruction of an artery or vein by a blood clot (thrombus). Arterial thrombosis is generally more serious because the supply of oxygen and nutrition to an area of the body is halted.
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), 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

[′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.

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
References in periodicals archive ?
The rationale behind thrombolytic therapy is to dissolve the arterial occlusion (thrombus or embolus) and reestablish blood flow to ischemic brain before the area becomes infarcted.
The Diagnosis of Pulmonary Embolus: A Clinician's Approach was designed to help physicians recognize the variable presentation of this treatable disease."
Risk factors for developing cerebral air embolus during invasive vascular manipulations include hypovolemia, increased intrathoracic pressure in deep inspiration, and mobile or upright patients [2, 15, 20].
Eichelberger, "Shotgun pellet embolus to the middle cerebral artery," Neurology, vol.
3 Palp with long embolus, winding once around tegulum, tip U-shaped (Fig.
To the best of our knowledge, this is the first report of a case with intra-cardiac thrombus as the source of embolus in an adult with CHD and CVE.
As suspected, the CT showed a large saddle embolus with characteristics consistent with tumour thromboembolus (Fig.
1, 7); embolus surrounding tegulum, supported by conductor; conductor sclerotized ventrally, with retrolateral laminar projection supporting embolus tip (Figs.
In other words, pulmonary embolus as a cause for respiratory deterioration is difficult to exclude, but potentially dangerous if missed.
Acute pulmonary emboli can be classified further by degree of pulmonary artery involvement, embolus mobility, the presence or absence of a major predisposing factor, or the interaction of PE size and underlying cardiovascular status.