Stent


Stent with Umbrella Filter : An angioplasty in the carotid arteries can pose the very serious risk of creating embolisms, tiny blood clots, which may travel to the smaller blood vessels of the brain. There they can become lodged and cause a stroke. To guard against this, a tiny umbrella-like filter can be attached to the stent, a coil of wire mesh used to expand the blocked vessel. At the end of the stenting procedure, the filter and its debris are removed from the artery.

In medicine, a stent is a tube or other device placed in the body to create a passage between two hollow spaces, and stenting is the placement of a stent. There is a wide variety of stents used for different purposes, from expandable coronary, vascular and biliary stents, to simple plastic stents used to allow the flow of urine between kidney and bladder. Stent is also used as a verb to describe the placement of such a device, particularly when a disease such as atherosclerosis has pathologically narrowed a structure such as an artery.


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