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<article><div id="d-article"><div class="page-info"><div class="page-title"><a name="start" id="start">
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</a><h1 class="with-also" itemprop="name">Stent</h1>
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</noscript></div><div class="main"><div id="ency_summary"><p>A stent is a tiny tube placed into a hollow structure in your body. This structure can be an artery, a vein, or another structure, such as the tube that carries urine (ureter). The stent holds the structure open.</p><img title="Coronary artery stent" alt="Coronary artery stent" src="//medlineplus.gov/ency/images/ency/fullsize/23193.jpg" class="img-e" itemprop="image"/></div><section><div class="section"><div class="section-header"><div class="section-title"><h2>Description</h2></div><div class="section-button"><button type="submit" aria-controls="section-1" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-1"><p>When a stent is placed into the body, the procedure is called stenting. There are different kinds of stents. Most are made of a metal or plastic mesh-like material. However, stent grafts are made of fabric. They are used in larger arteries.</p><p>A coronary artery stent is a small, self-expanding, metal mesh tube. It is placed inside a coronary artery after <a test="test" href="./002953.htm">balloon angioplasty</a>. This stent prevents the artery from re-closing.</p><p>A drug-eluting stent is coated with a medicine. This medicine helps further prevent the arteries from re-closing. Like other coronary artery stents, it is left permanently in the artery.</p></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>Why the Procedure is Performed</h2></div><div class="section-button"><button type="submit" aria-controls="section-2" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-2"><p>Most of the time, stents are used when arteries become narrow or blocked. </p><p>Stents are commonly used to treat the following conditions that result from blocked or damaged blood vessels:</p><ul><li><a test="test" href="./007115.htm">Coronary heart disease</a> (CHD) (angioplasty and stent placement - heart)</li><li><a test="test" href="./000170.htm">Peripheral artery disease</a> (angioplasty and stent replacement - peripheral arteries)</li><li><a test="test" href="./000204.htm">Renal artery stenosis</a></li><li><a test="test" href="./000162.htm">Abdominal aortic aneurysm</a> (aortic aneurysm repair - endovascular)</li><li><a test="test" href="./007427.htm">Carotid artery disease</a> (carotid artery surgery) </li></ul><p>Other reasons to use stents include:</p><ul><li><a test="test" href="./007373.htm">Keeping open a blocked or damaged ureter</a> (percutaneous urinary procedures)</li><li><a test="test" href="./001122.htm">Treating aneurysms</a>, including <a test="test" href="./001119.htm">thoracic aortic aneurysms</a></li><li><a test="test" href="./000220.htm">Keeping bile flowing in blocked bile ducts</a> (biliary stricture)</li><li>Helping you breathe if you have a blockage in the airways </li></ul></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>Risks</h2></div><div class="section-button"><button type="submit" aria-controls="section-3" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-3"><p>Related topics include:</p><ul><li><a test="test" href="./007473.htm">Angioplasty and stent placement - heart</a></li><li><a test="test" href="./007393.htm">Angioplasty and stent placement - peripheral arteries</a></li><li><a test="test" href="./007375.htm">Percutaneous urinary procedures</a></li><li><a test="test" href="./007210.htm">Transjugular intrahepatic portosystemic shunt</a> (TIPS)</li><li><a test="test" href="./002951.htm">Carotid artery surgery</a></li><li><a test="test" href="./007391.htm">Aortic aneurysm repair - endovascular</a></li><li><a test="test" href="./001119.htm">Thoracic aortic aneurysm</a></li></ul></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>Alternative Names</h2></div><div class="section-button"><button type="submit" aria-controls="section-Alt" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-Alt"><p>Drug-eluting stents; Urinary or ureteral stents; Coronary stents</p></div></div></section><section><div class="section sec-mb"><div class="section-header"><div class="section-title"><h2>Patient Instructions</h2></div><div class="section-button"><button type="submit" aria-controls="section-carepnt" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div name="Patient Instructions" class="section-body" id="section-carepnt"><ul class="side-nav"><li><a href="../patientinstructions/000091.htm">Angioplasty and stent - heart - discharge </a></li>
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<li><a href="../patientinstructions/000235.htm">Angioplasty and stent placement - carotid artery - discharge </a></li>
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<li><a href="../patientinstructions/000234.htm">Angioplasty and stent placement - peripheral arteries - discharge </a></li>
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<li><a href="../patientinstructions/000236.htm">Aortic aneurysm repair - endovascular - discharge</a></li>
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<li><a href="../patientinstructions/000096.htm">Cardiac catheterization - discharge </a></li>
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<li><a href="../patientinstructions/000238.htm">Carotid artery surgery - discharge</a></li>
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<li><a href="../patientinstructions/000137.htm">Percutaneous urinary procedures - discharge</a></li>
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<li><a href="../patientinstructions/000239.htm">Peripheral artery bypass - leg - discharge </a></li>
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</ul></div></div></section><section><div class="section sec-mb"><div class="section-header"><div class="section-title"><h2>Images</h2></div><div class="section-button"><button type="submit" aria-controls="section-tnails" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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<li><img src="//medlineplus.gov/ency/images/ency/tnails/23193t.jpg" alt="Coronary artery stent" title="Coronary artery stent" class="side-img"/><a href="../imagepages/9949.htm">Coronary artery stent</a></li>
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<li><img src="//medlineplus.gov/ency/images/ency/tnails/19001t.jpg" alt="Coronary artery balloon angioplasty - Series" title="Coronary artery balloon angioplasty - Series" class="side-img"/><a href="../presentations/100160_1.htm">Coronary artery balloon angioplasty - series</a></li>
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</ul></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>References</h2></div><div class="section-button"><button type="submit" aria-controls="section-Ref" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-Ref"><p>Tambyraja AL. Vascular and endovascular surgery. In: Garden OJ, Parks RW, Wigmore SJ, eds. <em>Principles and Practice of Surgery</em>. 8th ed. Philadelphia, PA: Elsevier; 2023:chap 22.</p><p>Teirstein PS, Kirtane AJ. Interventional diagnosis and treatment of coronary artery disease. In: Goldman L, Cooney KA, eds. <em>Goldman-Cecil Medicine</em>. 27th ed. Philadelphia, PA: Elsevier; 2024:chap 59.</p><p>Textor SC. Renovascular hypertension and ischemic nephropathy. In: Yu ASL, Chertow GM, Luyckx VA, Marsden PA, Skorecki K, Taal MW, eds. <em>Brenner and Rector's The Kidney</em>. 11th ed. Philadelphia, PA: Elsevier; 2020:chap 47.</p><p>White CJ. Atherosclerotic peripheral arterial disease. In: Goldman L, Cooney KA, eds. <em>Goldman-Cecil Medicine</em>. 27th ed. Philadelphia, PA: Elsevier; 2024:chap 65.</p></div></div></section>
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<section><div class="section"><div class="section-header"><div class="section-title"><h2>Review Date 5/10/2024</h2></div><div class="section-button"><button type="submit" aria-controls="section-version" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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<div id="section-version" class="section-body"><p>Updated by: Neil Grossman, MD, Saint Vincent Radiological Associates, Framingham, MA. Review provided by VeriMed Healthcare Network. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.</p>
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