Fenestrated endograft
A specialized stent-graft with custom openings designed to maintain perfusion to branch vessels during endovascular aortic repair.
Full Definition
Fenestrated endografts feature precisely positioned openings (fenestrations) that align with critical branch vessels such as renal and mesenteric arteries during endovascular repair of complex aortic aneurysms. Each device is custom-manufactured based on individual patient anatomy using advanced imaging. Covered stents are typically deployed through the fenestrations to ensure branch vessel patency and seal. This technology extends endovascular treatment to patients with short infrarenal necks or juxtarenal aneurysms who would otherwise require open surgical repair.
Usage
Usage note: Distinguish from branched grafts. Note custom manufacturing requirements in documentation.
In Context
- "The fenestrated endograft successfully preserved renal and superior mesenteric artery flow while excluding the juxtarenal aneurysm." — Complex EVAR procedure report
- "Manufacturing time for fenestrated endografts typically requires 6-8 weeks, limiting their use in urgent cases." — Treatment planning discussion