Case Report
Copyright ©The Author(s) 2021. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Clin Cases. May 6, 2021; 9(13): 3177-3184
Published online May 6, 2021. doi: 10.12998/wjcc.v9.i13.3177
Renal artery embolization in the treatment of urinary fistula after renal duplication: A case report and review of literature
Tao Yang, Jun Wen, Tan-Tan Xu, Wen-Jing Cui, Jian Xu
Tao Yang, Jun Wen, Tan-Tan Xu, Jian Xu, Department of Interventional Radiology, Jinling Hospital, Medical School of Nanjing University, Nanjing 210029, Jiangsu Province, China
Tao Yang, Graduate School, Xuzhou Medical University, Xuzhou 221000, Jiangsu Province, China
Wen-Jing Cui, Department of Radiology, The Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing 210029, Jiangsu Province, China
Author contributions: Xu J was guarantor of integrity of the entire study and edited the manuscript; Yang T prepared and edited the manuscript; Wen J, Xu TT, and Cui WJ performed the literature research, data analysis, and text proofreading.
Informed consent statement: All study participants, or their legal guardian, provided informed written consent prior to study enrollment.
Conflict-of-interest statement: The authors declare that they have no conflict of interest.
CARE Checklist (2016) statement: The authors have read the CARE Checklist (2016), and the manuscript was prepared and revised according to the CARE Checklist (2016).
Open-Access: This article is an open-access article that was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution NonCommercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See:
Corresponding author: Jian Xu, MM, Chief Doctor, Department of Interventional Radiology, Jinling Hospital, Medical School of Nanjing University, No. 305 Zhongshan East Road, Nanjing 210029, Jiangsu Province, China.
Received: December 17, 2020
Peer-review started: December 17, 2020
First decision: January 24, 2021
Revised: February 2, 2021
Accepted: March 4, 2021
Article in press: March 4, 2021
Published online: May 6, 2021
Processing time: 125 Days and 23.7 Hours

Duplicate renal malformation is a congenital disease of the urinary system, with an incidence rate of 0.8%. Surgical treatment is suitable for symptomatic patients. Urinary fistula is one of the complications of heminephrectomy. Long-term urinary fistula has a great impact on patients' lives.


This article mainly reports on a 47-year-old man with duplication of kidney deformity, long urinary fistula after partial nephrectomy, and no improvement after conservative treatment. We have achieved positive results in the arterial embolization treatment of the residual renal artery, indicating that selective arterial embolization is a good way to treat urinary fistula after partial nephrectomy. It is worth noting that this patient violated the Weigert-Meyer law, which also gave us more consideration.


Renal artery embolization may be a simple and safe method to treat urinary fistula inefficacy with conservative treatment.

Keywords: Renal artery embolization, Urinary leakage, Urinary fistula, Duplicate renal malformation, Selective arterial embolization, Case report

Core Tip: Urine leakage is one of the complications of heminephrectomy, and it leads to a serious decline in the patient’s quality of life. For patients who fail conservative treatment, they may also face the risk of reoperation. We successfully treated a patient with urine leakage after heminephrectomy through selective renal artery embolization. After 3 years of follow-up observation, the patient's renal function was normal and no urinary fistula recurred.