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Medtronic Inc.’s drug-coated heart stent Endeavor had more deaths and complications than Johnson & Johnson’s rival device to prop open clogged arteries, research funded by both companies found.
After 18 months, Medtronic’s Endeavor stent was tied to heart attacks, deaths and repeat surgeries in 9.7 percent of patients, compared with 4.5 percent for J&J’s Cypher, according to a study presented Monday at the American College of Cardiology meeting in Atlanta and published online by the journal Lancet.
