Glossary term Heart & Blood

Stent

In one sentence

A stent is an expandable mesh scaffold placed inside a narrowed artery to hold it open, usually during angioplasty.

A stent is an expandable mesh scaffold placed inside a narrowed artery to hold it open, usually during angioplasty.

Why it matters

In heart attacks, stents restore blood flow within minutes and save heart muscle. In stable disease, the decision is more nuanced — symptoms, anatomy and medication response all weigh in.

Living with one

The medication that keeps a stent open — antiplatelet therapy — is not optional. Never stop it before any procedure without the cardiologist who placed the stent agreeing.

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