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    What is a Stent? - American Heart Association

    Learn about the three main types of stents used to open up coronary arteries: bare metal, drug-eluting and biodegradable. Find out what to expect before, during and after the procedure and how to prevent complications.

    American Heart Association

    If an artery is about 70% blocked, you may need a stent to keep the artery open, improve blood flow to the heart and relieve symptoms like chest pain. Stents are a permanent fixture to increase blood flow to your heart and reduce the chance of a heart attack.

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    There are three main types of stents used to open up coronary arteries. 1. Bare metal stentsare simple, metal mesh tubes. 2. Drug-eluting stentsare coated with a medicine that releases into the artery over time. This helps prevent the artery from narrowing again. 3. Biodegradable stentsare temporary stents that dissolve after a few months.

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    Placing a stent is done through a minimally invasive procedure known as a percutaneous coronary intervention (PCI) or angioplasty (PDF). Your doctor will insert a long, thin, flexible tube called a catheter into the blood vessels to your heart. This tube has an empty balloon at the end of it, which will get inflated with air to open up the narrowed...

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