Stentt

Stentt is not a widely used term in medical literature. It may be a typographical error for "stent" or a specific brand or fictional usage.

A stent is a small tubular device inserted into a vessel or duct to keep the passage open and to support the vessel's inner wall. Stents are used throughout the body, most commonly in coronary arteries after angioplasty, but also in peripheral arteries, bile ducts, ureters, and other hollow structures.

There are several stent types, including bare-metal stents and drug-eluting stents, which release medication to reduce tissue growth that can narrow the vessel again. Materials include metal alloys such as nitinol and stainless steel, as well as polymer coatings for drug delivery. Delivery systems are balloon-expandable or self-expanding.

The procedure typically involves local anesthesia and imaging guidance; a catheter is guided to the target site, and the stent is deployed to expand against the vessel walls. Common risks include restenosis (re-narrowing), stent thrombosis, bleeding, infection, or vessel injury. Benefits include improved blood flow and reduced need for repeat procedures.

Antiplatelet therapy is often required after stent placement, with duration varying by stent type and clinical context. The stent concept emerged in the 1980s, and drug-eluting variants reduced restenosis rates but increased need for prolonged antiplatelet therapy.

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