In a surprising new study that may affect thousands of heart-attack victims, researchers determined that the effectiveness of angioplasty and stenting is greatly diminished if the procedure takes place even a few days after the initial attack. The study, known as the Occluded Artery Trial (OAT), was funded by the National Institute of Health’s National Heart, Lung, and Blood Institute (NHLBI) and is set to appear in the December 7 issue of the New England Journal of Medicine.
According to the NIH, “About one-third of heart attack patients do not receive treatment to open blocked arteries within the recommended 12-hour timeframe after a heart attack…. For years it has been thought that late balloon angioplasty of these patients’ arteries, if they are totally blocked, is still beneficial and might prevent future heart failure, another heart attack, or death. However, according to the results of a large international multi-center clinical trial, stable patients who had angioplasty plus stenting three to 28 days after a heart attack did no better than patients on medical therapy (primarily drug treatment) alone.â€
More NIH-Funded Study Disputes Current Practice Regarding Angioplasty and Stents


