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Some patients will get bare-metal stents, but most will get newer ones coated with a drug to prevent re-clogging of the artery around the stent. Everyone will get at least 81 milligrams of aspirin a day and an anticlotting drug. After a year, those who haven't had complications will be split in two groups, with one continuing on the blood-thinning therapy for 18 months and the rest stopping it.
About 800,000 to 1 million American patients a year have one or more stents implanted after angioplasty. Less than 1 percent have a clot form near the stent, according to FDA officials, but that still leads to many strokes, heart attacks and deaths.
In afternoon trading, shares of Abbott rose 3 cents to $44.04.
Copyright 2009 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.
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