The common practice of inserting a stent to repair a narrowed artery has no benefit over standard medical care in treating stable coronary artery disease, according to a new review of randomized controlled trials published on Monday.
Stable coronary artery disease is the type of heart ailment that causes angina, or chest pain, after physical exercise or emotional stress but generally not at other times. The review did not include studies of the emergency use of stents for heart attacks.
Stent implantation involves a procedure called percutaneous coronary intervention, or P.C.I., in which a
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