Thoracic endovascular aortic repair
Pronunciation: TEV-ar
An endovascular technique for treating thoracic aortic pathology using stent-grafts deployed in the descending thoracic aorta.
Full Definition
Thoracic endovascular aortic repair (TEVAR) involves deployment of covered stent-grafts in the descending thoracic aorta to treat aneurysms, dissections, traumatic injuries, and other aortic pathology. The procedure requires precise device sizing and positioning to avoid covering critical branch vessels while achieving adequate seal zones. TEVAR may necessitate adjunctive procedures such as left subclavian artery revascularization or cerebrospinal fluid drainage to prevent spinal cord ischemia. Post-procedural surveillance focuses on endoleaks, device integrity, and aortic remodeling.
Usage
Usage note: Abbreviate as TEVAR after first use. Document spinal cord protection measures when applicable.
In Context
- "TEVAR was performed for acute type B aortic dissection with malperfusion syndrome, achieving false lumen thrombosis." — Emergency procedure report
- "Prophylactic cerebrospinal fluid drainage was initiated before extensive TEVAR coverage to prevent paraplegia." — Perioperative management