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What is the chance a coated stent will clog?

By July 17, 2014 - 5:47pm
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My mother had a heart attack a few months ago. The doctors inserted a non-coated stent into her heart and she was doing fine. A week ago she was having some shoulder pain, so she went to get it checked out. They cleared her but the pain did not go away. Yesterday she went in to get another test done and the stent had actually clogged again. Since it was only a few months old (and her heart conditions are genetic, not lifestyle related) they had ruled that the stent was clogged because her body was attacking the foreign object (the stent) in her body. They replaced the stent with a "coated" stent. I am concerned that this stent will be clogged as well. What are the chances this will happen?

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Hello John,

Drug-eluting stents have a polymer coating over mesh that emits a drug over time to help keep the blockage from recurring.

Generally, this type of stent is preferred over bare metal stents for most people. Stents are small mesh tubes inserted to keep arteries open after a procedure called angioplasty. they more likely to keep the blockage from recurring than are bare-metal stents, but studies show the latest drug-eluting stents to be at least as safe as bare-metal stents.

I hope this information is helpful. Well wishes to your mother.


July 22, 2014 - 5:53pm
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