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Updated: Jul 4, 2026

A Large Animal Model for Acute Kidney Injury by Temporary Bilateral Renal Artery Occlusion
Published on: February 2, 2021
Complex renal artery aneurysms: liquids or coils?
Carlos Abath1, Gustavo Andrade, Douglas Cavalcanti
1ANGIORAD-Interventional Radiology, IMIP Medical Center, Recife, Brazil. carlosabath@angiorad.com.br
Endovascular treatment is now the preferred option for renal artery aneurysms, offering a less invasive approach. This method achieves complete occlusion with minimal complications, even for complex cases.
Area of Science:
- Interventional Radiology
- Vascular Surgery
- Nephrology
Background:
- Renal aneurysms are increasingly detected due to advanced imaging.
- Treatment criteria remain debated due to poorly understood natural history.
Purpose of the Study:
- To evaluate the efficacy of endovascular techniques for complex renal artery aneurysms.
- To present experience with various embolic agents and the remodeling technique.
Main Methods:
- Superselective embolization using microcatheter-guidewire systems.
- Utilized platinum detachable coils, liquid embolic agents (glue, Onyx), and remodeling technique.
- Applied strategy based on lesion architecture and topographic classification in 11 complex cases.
Main Results:
- Complete and durable occlusion achieved in all 11 complex renal artery aneurysms.
- Only two minor complications were reported.
- Successful treatment regardless of lesion complexity.
Conclusions:
- Endovascular treatment is the primary option for renal artery aneurysms when appropriate strategy and tools are available.
- This approach is less invasive than traditional surgery.
- The study supports the safety and effectiveness of endovascular embolization for complex renal aneurysms.
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