A large study finds that people with stable heart disease from clogged arteries may have less chest pain if they get a stent or bypass procedure, but it won't cut their risk of having a heart attack or dying over the next few years.
In this Feb. 16, 2017 file photo, surgeons perform a non-emergency angioplasty at Mount Sinai Hospital in New York. Through a blood vessel in the groin, a tube is guided to a blockage in the heart. A tiny balloon is then inflated to flatten the clog, and a mesh tube called a stent is inserted to prop the artery open. According to a federally funded study released on Saturday, Nov.
That’s a different situation than a heart attack, when a procedure is needed right away to restore blood flow. “This study clearly goes against what has been the common wisdom for the last 30, 40 years” and may lead to less testing and invasive treatment for such patients in the future, said Dr. Glenn Levine, a Baylor College of Medicine cardiologist with no role in the research. Some doctors still may quibble with the study, but it was very well done “and I think the results are extremely believable,” he said.
So the federal government spent $100 million for the new study, which is twice as large, spanned 37 countries and included people with more severe disease — a group most likely to benefit from stents or a bypass. After one year, 7% in the invasively treated group had one of those events versus 5% of those on medicines alone. At four years, the trend reversed — 13% of the procedures group and 15% of the medicines group had suffered a problem. Averaged across the entire study period, the rates were similar regardless of treatment.
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