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Stents are small wire mesh tubes that keep clogged arteries open after an angioplasty, a non-surgical procedure that opens up blood flow in a blocked artery.
After an angioplasty, all stents are at risk of developing scar tissue which can clog the arteries again and block blood flow. Drug-eluting stents are coated with medicine which is slowly released into the artery to help prevent re-blockages and repeat angioplasties.
Today, approximately 75% of all stents placed during an angioplasty are drug-eluting stents.
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