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Updated: Jun 20, 2026
09:02
A Large Animal Model for Acute Kidney Injury by Temporary Bilateral Renal Artery Occlusion
Published on: February 2, 2021
Emergent coil embolization for ruptured renal artery aneurysm
Makiyo Hagihara1, Akira Kitagawa, Yuichiro Izumi
1Department of Radiology, Aichi Medical University, Aichi, Japan, hagihara@aichi-med-u.ac.jp
Japanese Journal of Radiology
|August 29, 2009
Summary
Emergent transcatheter embolization using microcoils offers a safe and effective treatment for ruptured renal artery aneurysms. This minimally invasive endovascular technique successfully occluded the aneurysm while preserving vital renal artery branches.
Area of Science:
- Vascular Surgery
- Interventional Radiology
- Endovascular Therapy
Background:
- Renal artery aneurysms (RAAs) are rare vascular lesions that can lead to life-threatening hemorrhage.
- Ruptured RAAs necessitate prompt intervention to control bleeding and preserve renal function.
Observation:
- A 66-year-old woman presented with acute flank pain and anemia due to a ruptured, partly calcified renal artery aneurysm with massive retroperitoneal hematoma.
- Emergency angiography revealed a saccular aneurysm at the left renal hilum.
Findings:
- Successful emergent transcatheter embolization was achieved using five microcoils.
- A novel anchoring technique with the first coil prevented migration and ensured effective occlusion of the aneurysm orifice.
- Two essential renal artery branches were preserved during the procedure.
Implications:
- Transcatheter coil embolization is a safe, effective, and less invasive alternative to surgical repair for ruptured RAAs.
- This endovascular approach should be considered a primary treatment option for ruptured renal artery aneurysms.
- Preservation of arterial branches during embolization may help maintain renal perfusion.
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