US taxpayers are spending over $800 million a year on unnecessary heart stents, a report has found. inserted into weak or narrow arteries and other passages to keep them open in patients with coronary artery disease, to widen arteries that have become blocked with plaque and keep blood flowing.The new report estimated that one in five stents implanted between 2019 and 2021 was unnecessary because the patient was not at high risk of a heart attack, the Lown Institute, an independent research firm, found.
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