Safety debate casts shadow on booming stent market
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The booming market for drug-coated   stents faces an uncertain future as some heart experts question   the long-term safety record of the devices.
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Blood clotting is four to five times more likely in patients getting drug-coated heart devices known as stents, compared to the older bare-metal variety, according to a large data analysis released on Wednesday.
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Drug-coated stents that prop open the arteries of about 3 million people in the U.S. don't increase the risk of heart attack or death when used as labeled but may put patients at risk for blood clots, health advisers said Thursday.
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New drug-releasing stents used widely to keep clogged heart arteries open appear to increase the risk for potentially life-threatening blood clots more than older bare-metal versions, government investigators told an expert panel assessing the safety of the devices today.
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Drug-eluting stents are safe and   effective for use in patients who had severe heart attacks, but   the potential risk of blood clots needed more study before the   devices could be recommended for all heart attack patients,   according to an editorial in a major medical journal.
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The most exhaustive studies yet published on drug-coated stents show that the widely used heart devices are no better at preventing heart attacks and death than the older, cheaper devices they replaced, and in some cases may be slightly worse.
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Experts expressed concerns Sunday that drug-coated heart stents &#151; metal-mesh tubes used to prop open coronary arteries &#151; may in rare instances lead to potentially fatal blood clots.
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The new heart stent from Medtronic Inc. has been assocated with more blood clots than a rival product has, federal regulators have concluded.
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Drug-coated stents were linked to a higher death rate when given to people with a certain type of heart attack, a finding that may limit doctors' use of the mesh tubes to prop open arteries.
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Blood clotting is four to five times more likely to occur in patients who have drug-coated heart devices known as stents, compared with the older bare-metal variety, according to a large data analysis by the Cleveland Clinic released yesterday.
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GAITHERSBURG, Md. -- Drug-coated stents increase the risk of potentially fatal blood clots and heart attacks in some patients, but not enough to warrant limiting use of the devices, federal advisers said yesterday .
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Results of a study showing patients with acute heart attacks are more likely to die if given a drug-coated stent than a bare metal one are out of line with other findings, stent maker Johnson & Johnson said on Tuesday.
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Drug-coated stents may carry a delayed risk of potentially dangerous blood clots, according to a new report.
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Some cardiologists suggest drug-coated stents carry a higher risk of potentially fatal blood clots than older, bare-metal stents.
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The cardiovascular risk boogeyman is everywhere. First it struck Merck&#39;s (NYSE: MRK) Vioxx. Then Pfizer&#39;s (NYSE: PFE) Celebrex.
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Expensive drug-coated stents -- used to prop open clogged coronary arteries -- are not worth using in many patients, Swiss researchers said on Friday.
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The panel will weigh evidence that stents used to treat clogged arteries can cause fatal blood clots, and is expected to recommend stricter regulation of the devices.