Direct Abdominal Aortic Access for Thoracic Endovascular Aortic Repair in a Patient with Severe Aortic and Arterial Calcification
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Updated: Nov 25, 2025

Novel and Innovative Hybrid Technique for Type A Aortic Dissection
Published on: March 28, 2025
Takuya Wada1, Takayuki Kadohama1, Daichi Takagi1
1Department of Cardiovascular surgery, Akita University Graduate School of Medicine, Akita, Japan.
Insights
Severe aortic and arterial calcification poses challenges for stent graft procedures. A direct transabdominal aortic approach offers a viable alternative access site for thoracic endovascular aortic repair in complex cases.
Area of Science:
- Vascular Surgery
- Cardiovascular Imaging
- Interventional Cardiology
Background:
- Aortic and arterial calcification complicates advanced atherosclerosis, posing intraoperative challenges for stent graft procedures.
- Standard transfemoral or iliac access may be infeasible in cases with extensive calcification.
- Thoracic endovascular aortic repair (TEVAR) requires adequate vascular access for stent graft delivery.
Observation:
- A challenging case of TEVAR for a thoracic aortic aneurysm with severe aortic and arterial calcification is presented.
- The patient had a severely limited noncalcified area in the infrarenal abdominal aorta, complicating standard access.
- A direct transabdominal aortic approach was utilized for stent graft introduction.
Findings:
- The direct transabdominal aortic approach provided a feasible access route despite severe calcification.
- Successful stent graft introduction was achieved using this alternative access strategy.
- This approach facilitated the completion of thoracic endovascular aortic repair.
Implications:
- Direct transabdominal aortic access may be a valuable strategy for TEVAR in patients with extensive aortic and arterial calcification.
- This technique expands treatment options for complex aortic aneurysms where conventional access is not possible.
- Further research could explore the safety and efficacy of this approach in a larger patient cohort.
Abstract:
Aortic and arterial calcification is a complication of advanced atherosclerosis and is a critical intraoperative issue that can reduce the ability to achieve safe and adequate access for stent graft introduction. Different vascular access sites are used to deliver stent grafts when a standard transfemoral or iliac access is not feasible. We report a challenging case of a direct transabdominal aortic thoracic endovascular aortic repair for a thoracic aortic aneurysm complicated with severe aortic and arterial calcification, in which the noncalcified area of the infrarenal abdominal aorta was extremely limited. This may be a reasonable access site, especially for patients with severe aortic and arterial calcification.
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