SAIMSARA Journal

Machine Generated Science • ISSN 3054-3991

TEVAR (Thoracic Endovascular Aortic Repair): Scoping Review with ☸️SAIMSARA.

Cardiac & Vascular Health icon

Cardiac & Vascular Health

Issue 1, Volume 1, 2026

DOI: 10.62487/saimsara045f98bf

Editorial note
• Last update: 2026-04-29 21:59:34
What is this paper about
TEVAR is no longer just a less invasive alternative to open repair — across type B dissection, traumatic injury, and thoracic aneurysm, it has become a strategy whose success depends on timing, landing-zone judgment, branch preservation, and complication control. This review shows where TEVAR clearly wins, where the evidence is still conflicted, and which technical decisions most strongly shape survival, remodeling, and long-term failure.
Human-verified editorial review Verified by World ID proof-of-human. This editorial layer was submitted from a SAIMSARA account verified as a unique human.


Abstract: The aim of this scoping review is to synthesize the current evidence regarding the clinical outcomes, technical advancements, and complication profiles of thoracic endovascular aortic repair (TEVAR) across diverse aortic substrates, with a focus on optimizing patient selection and procedural timing. The review utilises 2530 original studies with 3319112 total participants (topic deduplicated ΣN). The mapped evidence supports TEVAR as the dominant contemporary strategy for descending thoracic aortic pathology, with consistent signals of lower perioperative mortality compared with open surgical repair (in-hospital mortality 5.9% versus 15.3% in acute type B aortic dissection) and improved 5-year survival relative to medical therapy (91.9% versus 82.2% in acute uncomplicated type B aortic dissection). Across the dominant research topics, TEVAR was associated with favorable false lumen thrombosis (up to 72.1% versus 20.0% with medical therapy) and superior aortic remodeling, particularly when performed in the subacute window, while controlled device-trial data also indicated lower aneurysm-related mortality for descending thoracic aneurysms in anatomically suitable patients. Recurrent signals across topics highlight that left subclavian artery management, proximal landing zone selection, oversizing strategy, and frailty status modulate risk of stroke, spinal cord ischemia, distal stent graft-induced new entry, and retrograde type A dissection, indicating that procedural success is anatomy- and patient-specific rather than uniformly favorable. Clinically, this evidence map supports a tailored approach combining subacute timing when feasible, selective left subclavian artery revascularization, conservative oversizing, and lifelong imaging surveillance for endoleak and aneurysmal progression. The most prominent uncertainty concerns preemptive TEVAR in uncomplicated type B aortic dissection, where randomized and observational data remain discordant on long-term mortality benefit. Future research should prioritize adequately powered randomized trials in high-risk uncomplicated type B aortic dissection, standardized definitions for distal stent graft-induced new entry and post-implantation syndrome, and prospective evaluation of patient-specific computational and digital twin planning to refine device selection and landing-zone strategy.

Keywords: Thoracic endovascular aortic repair; Type B aortic dissection; Aortic remodeling; Chimney TEVAR; Endoleak; Aortic arch pathologies; Blunt thoracic aortic injury; Postimplantation syndrome; Spinal cord ischemia; Stent-graft

Review Stats

Get access to the full paper

Unlock the full evidence map

The full evidence review, including the Introduction, Methods, Results, Discussion, Conclusion, figures, and complete reference index, opens after purchase or sign-in. The Evidence Object JSON is a separate machine-readable evidence product: a concentrated synthesis of results, topic-level evidence, and discussion across original and non-original studies. It can be directly input into your LLM, agent, or RAG workflow.

Reference Index (244)