Coronary stent
Coronary Stent
A Coronary Stent (pronunciation: /kəˈrɒnəri stɛnt/) is a small, mesh-like device made of metal or plastic that is placed in the coronary arteries to keep them open in the treatment of coronary heart disease. It is used in a procedure called a percutaneous coronary intervention (PCI) or coronary angioplasty.
Etymology
The term "Coronary" comes from the Latin coronarius, meaning "crown" or "wreath", due to the crown-like circle the coronary arteries form around the heart. "Stent" is named after Charles Thomas Stent, a British dentist who developed a compound for setting dental impressions.
Procedure
The procedure to place a coronary stent involves threading a thin tube through a small puncture in a leg or arm artery to the heart. The blockage in the coronary artery is then crossed with a balloon catheter and the balloon is inflated to compress the plaque against the artery wall. After the balloon is deflated and removed, the stent is deployed at the site of blockage to keep the artery open.
Types of Stents
There are two main types of coronary stents: bare-metal stents and drug-eluting stents. Bare-metal stents are made of a metal mesh and do not contain any medication. Drug-eluting stents are coated with medication that is slowly released to help prevent the artery from becoming blocked again.
Related Terms
- Angioplasty
- Arteries
- Balloon Catheter
- Bare-metal Stents
- Coronary Arteries
- Coronary Heart Disease
- Drug-eluting Stents
- Percutaneous Coronary Intervention
External links
- Medical encyclopedia article on Coronary stent
- Wikipedia's article - Coronary stent
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