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Embolization of ruptured renal artery aneurysms

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Abstract

Background

Renal artery aneurysm (RAA) is a relatively rare vascular entity. Treatment of ruptured RAA could be either surgical or via an endovascular route with variable prognosis and remain controversial. To evaluate the results of ruptured renal artery aneurysms treated by endovascular treatment and explore the efficacy of selective embolization in ruptured RAAs, controlling hemorrhage, and preserving renal function.

Methods

From January 2001 to May 2011, 6 patients presented with gross hematuria or sudden onset severe abdominal or flank pain. This included a number in whom the aneurysm leaked, causing hematuria. Color Doppler ultrasonography (CDU) and contrasted computed tomography (CT) or computed tomography angiography (CTA) demonstrated 6 cases, and all cases were performed emergency angiography and 5 cases treated with selective coil embolization, and one case with trunk artery occlusion.

Results

All cases with a follow-up for mean 25 months (range 12–64 months),4 cases with selective coil embolization with complete durable occlusion was achieved in all aneurysms without relapse, patients’ renal function was not significantly deteriorated. The case with trunk occlusion underwent subsequent ischemic parenchymal loss and post-embolization syndrome and with mild kidney atrophy.

Conclusions

Superselective coil embolization provides a good therapeutic option for the ruptured RAAs with low mortality rates and good long-term outcome. RAAs have a probability of bilateral and multiple lesions,so attention for the presence of the contralateral RAA is important for medical choice.

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Acknowledgments

This study was supported by the National Natural Science Foundation for Young Scholars of China (Grant 81302211) and Tianjin Research Program of Application Foundation and Advanced Technology. (No. 14CYBJC29800).

Conflict of interest

The authors have declared that no conflict of interest exists.

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Author notes

    Authors and Affiliations

    1. Department of Urology, The Second Hospital of Tianjin Medical University, Tianjin Institute of Urology, Tianjin, 300211, China

      Gang Li, Hualin Song & Yi Wang

    2. Department of Radiology, Qinghai Provincial People’s Hospital, Xining, 810001, Qinghai, China

      Yanqiu Sun

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    1. Gang Li
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    2. Yanqiu Sun
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    3. Hualin Song
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    4. Yi Wang
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    Correspondence to Gang Li.

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    Gang Li, Yanqiu Sun and Hualin Song are equal contribution to the article.

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    Cite this article

    Li, G., Sun, Y., Song, H. et al. Embolization of ruptured renal artery aneurysms. Clin Exp Nephrol 19, 901–908 (2015). https://doi.org/10.1007/s10157-015-1087-1

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    • DOI: https://doi.org/10.1007/s10157-015-1087-1

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