stenttityyppiä

Stenttityyppiä refers to a specific category or classification of stents, which are medical devices used to keep blood vessels open. Stents are typically made of metal mesh or plastic and are inserted into a blood vessel to prevent it from narrowing or collapsing. This can be crucial in treating conditions such as coronary artery disease, peripheral artery disease, and aneurysms.

There are several types of stents, each designed for specific applications and patient needs. The most common types include:

1. Bare Metal Stents (BMS): These are made of stainless steel or cobalt-chromium alloy and are coated with a drug to prevent blood clots from forming. They are often used in coronary arteries.

2. Drug-Eluting Stents (DES): These stents are coated with a medication that is released over time to inhibit the growth of smooth muscle cells and prevent the vessel from narrowing again. DES are commonly used in coronary arteries and peripheral arteries.

3. Biodegradable Stents: These stents are made of materials that break down over time, reducing the risk of long-term complications such as stent thrombosis and in-stent restenosis. They are often used in smaller blood vessels.

4. Self-Expanding Stents: These stents are designed to expand once they are inserted into the blood vessel, providing a more precise fit and reducing the risk of complications. They are commonly used in peripheral arteries.

5. Covered Stents: These stents have a polymer coating that protects the metal mesh from the bloodstream, reducing the risk of blood clots and inflammation. They are often used in coronary arteries.

The choice of stent type depends on various factors, including the location and severity of the blockage, the patient's overall health, and the specific medical condition being treated. Stent placement is typically performed using angiography, a procedure that involves injecting a contrast dye into the blood vessels and taking X-ray images to guide the insertion of the stent.