Drug-eluting stent. Computer illustration showing a drug-eluting stent (DES, blue) inside a blood vessel (red). Stents are mesh tubes that are used in order to provide support to or widen a narrow vessel in the body. They are commonly used to widen arteries that have become narrowed due to atherosclerosis. A DES is a stent that also slowly releases a drug to block cell proliferation at the site of the narrowing. This prevents fibrosis, helping to reduce blood clots that can block the artery.
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