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Bypass procedures in the management of juxtarenal aortic occlusion
Insights
Juxtarenal aortic occlusion, a rare atherosclerotic lesion, was surgically treated in 91 patients. The study discusses surgical techniques and outcomes for this condition.
Area of Science:
- Vascular Surgery
- Atherosclerosis Research
- Aortic Disease
Background:
- Juxtarenal aortic occlusion is a significant, albeit infrequent, manifestation of atherosclerosis.
- Surgical treatment indications are established, but its pathogenesis remains debated (thrombosis vs. primary atherosclerosis).
Purpose of the Study:
- To analyze the surgical management and outcomes of juxtarenal aortic occlusion.
- To investigate the clinical presentation and operative findings in patients with juxtarenal occlusion.
Main Methods:
- Retrospective analysis of 1,180 patients undergoing surgery for aorto-iliac occlusive disease.
- Identification of 91 cases (7.7%) with juxtarenal occlusion.
- Surgical intervention involved aortobifemoral bypass grafts or axillo-bifemoral bypass, with variations in proximal anastomosis techniques.
Main Results:
- Aortobifemoral bypass was the primary surgical approach in most cases.
- Axillo-bifemoral bypass was utilized in three patients.
- Different suture techniques were employed for proximal anastomosis during juxtarenal disobliteration.
Conclusions:
- Surgical intervention for juxtarenal aortic occlusion is feasible and effective.
- The study contributes to understanding the management strategies for this specific atherosclerotic lesion.
- Further discussion on operative indications and results is warranted.
Abstract:
Juxtarenal aortic occlusion is one of the most important though less frequent atherosclerotic lesions. The indications for surgical treatment using bypass techniques, are well known. However, controversy remains about the pathogenesis of the lesion; from either a thrombosis developing on an atherosclerotic lesion of the terminal aorta, or a primary atherosclerosis of the subrenal aorta. In our series of 1,180 patients submitted to surgery for aorto-iliac occlusive disease, we encountered 91 cases (7.7%) of juxtarenal occlusion. Apart from the different angiographic pictures, the patients were grouped on the operative finding of either thrombosis or atheroma. An aortobifemoral bypass graft was implanted on all but three of the cases; in these three we performed an axillo-bifemoral bypass. A different technique was used, for juxtarenal disobliteration, using a different (end-to-end, or end-to-side) suture of the proximal anastomosis. The operative indications and results are discussed.