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Published on: August 1, 2025
Surgical procedures for renal artery aneurysms
Masatoshi Jibiki1, Yoshinori Inoue, Toshifumi Kudo
1Department of Vascular Surgery, Tokyo Medical and Dental University, Tokyo, Japan.
Objective:
The aim of this study was to assess the strategy and surgical procedures for treating a renal artery aneurysm (RAA).
Patients And Methods:
We retrospectively reviewed the surgical strategy for 21 cases with RAA between 2001 and 2010 at this institution. Treatment was indicated for patients with an RAA larger than 2 cm and/or symptoms. Surgical treatment was the initial strategy, and coil embolization was indicated in the case of narrow-necked, saccular, extraparenchymal aneurysms.
Results:
Fifteen patients in 21 cases received an aneurysmectomy and renal artery reconstruction with an in-situ repair. One patient underwent an unplanned nephrectomy, and coil embolization was performed in 5 patients.
Conclusion:
In-situ repair was safe and minimally invasive. RAA, even in the second bifurcation, could be exposed by a subcostal incision, and the transperitoneal approach permitted the safe treatment of an RAA with acceptable results, in our simple preservation of renal function.
Insights
This study assessed renal artery aneurysm (RAA) treatments. In-situ repair proved safe and effective, preserving renal function, while coil embolization was used for specific aneurysm types.
Area of Science:
- Vascular Surgery
- Interventional Radiology
- Nephrology
Background:
- Renal artery aneurysms (RAAs) are rare vascular conditions.
- Treatment strategies aim to prevent rupture and preserve renal function.
Purpose of the Study:
- To evaluate the surgical strategies and procedures for treating renal artery aneurysms (RAAs).
- To assess the safety and efficacy of in-situ repair and coil embolization for RAA management.
Main Methods:
- Retrospective review of 21 RAA cases (2001-2010).
- Treatment criteria: RAA > 2 cm and/or symptomatic.
- Surgical repair (aneurysmectomy with in-situ repair) was the primary strategy.
- Coil embolization reserved for narrow-necked, saccular, extraparenchymal aneurysms.
Main Results:
- 15 patients underwent aneurysmectomy with in-situ renal artery reconstruction.
- 5 patients were treated with coil embolization.
- 1 patient required an unplanned nephrectomy.
Conclusions:
- In-situ repair is a safe and minimally invasive option for RAA treatment.
- The transperitoneal approach with subcostal incision allows safe access for RAA repair.
- Treatment resulted in acceptable outcomes and preserved renal function.
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