Which characteristic is true of self-expandable stents?

Self-expandable stents possess a unique mechanism that allows them to adjust to the diameter of the vessel in which they are placed. This is achieved through the use of materials and designs that enable the stent to expand automatically once deployed in the body.

When the stent is released from its delivery system, the stored potential energy within its structure allows it to expand radially, conforming to the size of the vessel lumen. This characteristic is especially beneficial in treating conditions where the vessel may vary in diameter along its length, ensuring a more effective and stable deployment. The ability to automatically adjust contributes to the stent's effectiveness in maintaining vessel patency and preventing complications such as re-stenosis.

In contrast, self-expandable stents are designed specifically to simplify the deployment process and enhance their adaptability compared to other types of stents, making them popular for a wide range of applications, particularly in areas where vascular changes are likely. This adaptability is crucial for their successful use in treating various pathologies, including vascular obstructions.