Harvard Heart Letter

What is a “full metal jacket”?

Ask the doctor Q. I heard my cardiologist say to another doctor that I have a “full metal jacket.” What does that mean? A. Cardiologists use the term “full metal jacket” to refer to a long series of stents in one of the heart’s three major arteries. Stents are tiny metal cylinders, often with drug coatings, that help prop open arteries to restore blood flow to the heart. They’re placed…

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