stent retriever
Self-expanding neurovascular device used for mechanical thrombectomy that captures and removes blood clots from cerebral arteries.
Full Definition
A stent retriever is a specialized endovascular device designed for mechanical thrombectomy in acute ischemic stroke. The device consists of a self-expanding nitinol mesh that is deployed within the occluding thrombus, allowing the stent struts to integrate with the clot material. After a brief deployment period, the device is withdrawn, capturing and removing the thrombus to restore arterial patency. Stent retrievers have revolutionized acute stroke treatment, offering high recanalization rates and improved clinical outcomes compared to earlier thrombectomy techniques. Multiple devices may be used in combination with aspiration catheters for optimal clot removal in complex cases.
Usage
Usage note: Often used with specific device brand names; may require technical specifications.
In Context
- "TICI 3 recanalization was achieved using a stent retriever device in a single pass." — Procedure report
- "The combination of aspiration and stent retriever techniques optimized clot removal efficiency." — Technical description