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Endografting of the aortic arch
1Department of Surgery II, Tokyo Medical University, Tokyo, Japan. ishimaru@tokyo-med.ac.jp
Summary
Endovascular repair using stent-grafts is advancing for aortic aneurysms. This review highlights the need for specialized thoracic aortic endografts, considering the aortic arch
Area of Science:
- Vascular Surgery
- Biomedical Engineering
- Medical Device Design
Background:
- Endovascular repair with stent-grafts offers a minimally invasive option for aortic aneurysm and dissection.
- While widely used for abdominal aorta pathologies, dedicated thoracic aortic endografts remain limited.
- Current thoracic aortic endografts often share designs with abdominal systems, overlooking unique aortic arch characteristics.
Purpose of the Study:
- To review current literature on stent-graft repair in the aortic arch.
- To identify critical design elements for effective thoracic aortic endografts.
- To address the specific morphological and hemodynamic challenges of the aortic arch.
Main Methods:
- Literature survey of aortic arch stent-graft repair.
- Analysis of endograft specifications and performance profiles.
- Identification of deployment techniques for navigating the aortic arch.
Main Results:
- Second-generation endografts for the thoracic aorta share similarities with abdominal systems.
- Existing endografts may not adequately account for the aortic arch's unique anatomy and hemodynamics.
- Deployment in the curved aortic arch presents specific technical challenges.
Conclusions:
- There is a need for thoracic aortic endografts specifically designed for the aortic arch.
- Successful aortic arch stent-graft repair requires consideration of anatomical and hemodynamic factors.
- Further research into specialized endograft design and deployment is crucial for this region.