Endovascular aneurysm repair
A minimally invasive technique for treating aortic aneurysms using stent-grafts deployed through femoral artery access to exclude the aneurysm from circulation.
Full Definition
Endovascular aneurysm repair (EVAR) involves percutaneous or surgical exposure of femoral arteries to deliver modular stent-graft components that exclude aortic aneurysms from systemic circulation. The procedure requires adequate proximal and distal landing zones, appropriate vessel access, and suitable anatomy. EVAR offers reduced perioperative morbidity and mortality compared to open surgical repair but requires lifelong surveillance for endoleaks, device migration, and aneurysm expansion. Patient selection depends on anatomical suitability, life expectancy, and ability to comply with follow-up requirements.
Usage
Usage note: Abbreviate as EVAR after first use. Always specify device manufacturer and model in operative reports.
In Context
- "The patient underwent successful endovascular aneurysm repair with complete aneurysm exclusion and no immediate endoleaks." — Operative report
- "EVAR eligibility requires adequate aortic neck length and diameter within device specifications." — Patient selection criteria