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New study scrutinizes heart stent procedures
Health Key

A new study of more than 500,000 cardiac patients who underwent recent cardiac stent or angioplasty procedures in the United States has found that up to 15 percent were either unnecessary or appeared to be of uncertain medical benefit.

However, nearly all of the procedures performed on cardiac patients experiencing acute symptoms such as a heart attacks appeared to have been medically appropriate, the study found.

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