As many as 40 percent of people who receive older "bare metal" stents experience reclogging of the artery, usually within six months of the surgery. ❋ Unknown (2009)
Such coated stents help prevent arteries from reclogging after a stent is implanted. ❋ Unknown (2009)
Heart stents include several parts -- mechanical gadgetry to place a scaffold inside a clogged artery, a polymer coating that slowly releases a drug, and the drug itself, which prevents an artery from reclogging. ❋ Unknown (2008)
But in 2006, several studies suggested that by using coated stents, patients may be trading in a more-benign side-effect, reclogging, for one that is graver: the formation of blood clots years after a stent is implanted. ❋ Unknown (2008)
Stents are small scaffolds used to prop open blocked blood vessels, and some are coated with a medication that prevents reclogging. ❋ Unknown (2008)
Drug-coated stents are designed to prevent scar tissue from reclogging the artery later and thus reduce the need for patients to return for a repeat operation. ❋ Unknown (2008)
Taxus is coated with drugs that reduce reclogging and is the top-selling model world-wide, with $1.8 billion in sales last year. ❋ Unknown (2008)
In the end, after nine months, the Atlas study found that 8% of the patients suffered reclogging. ❋ Unknown (2008)
In a vital part of its calculation, called the "standard error," Boston Scientific assumed that the difference between the true rates of reclogging between Liberte and Express was one percentage point-what the trial showed. ❋ Unknown (2008)
The lucrative, tiny devices are inserted during angioplasty procedures to prop open heart arteries; they use medication to fight reclogging. ❋ Unknown (2008)
Boston Scientific proposed-and the FDA okayed-a benchmark in which Liberte could be up to three percentage points worse than Express -- meaning that if 6% of Express patients 'arteries reclog, Boston Scientific would have to prove that Liberte's rate of reclogging was less than 9%. ❋ Unknown (2008)
The fanciest models are coated with drugs that prevent scar tissue from reclogging an artery and cost about $2,000, making them far more profitable than uncoated, bare-metal stents, which sell for less than half the price. ❋ Unknown (2008)
Boston Scientific has promoted the Liberte as easier to implant than Express and just as good at preventing arteries from reclogging after implantation. ❋ Unknown (2008)
Last year, the agency opined in draft recommendations that the fanciest stents -- those coated with drugs to keep arteries from reclogging -- weren't worth the extra cost. ❋ Unknown (2008)
Models coated with drugs to reduce reclogging, from Boston Scientific Corp., of Natick, Mass., and Johnson & Johnson, of New Brunswick, N.J., account for most of the U.S. market. ❋ Unknown (2008)
Assume that the rates of reclogging actually do differ by at least three percentage points. ❋ Unknown (2008)
The fanciest, most profitable kind -- those coated with drugs to prevent reclogging -- were used in 88% of stentings as recently as mid-2006. ❋ Unknown (2008)
Answering that question calls for a bit of statistical hypothesis since observing reclogging in just 871 patients is only an estimate of the total population. ❋ Unknown (2008)
