Related Experiment Video
Updated: Jan 26, 2026

A Modified Surgical Technique for Kidney Transplantation in Mice
Published on: July 22, 2022
Urologic Complications After Transplantation of Kidneys With Duplicated Ureter: A Retrospective Study
R Cylke1, E Karpeta2, M Bieniasz1
1Department of General and Transplant Surgery of the Infant Jesus Teaching Hospital in Warsaw, Poland.
Background:
Duplication of ureters is a common anatomic abnormality and occurs in 0.7% to 1% of the general population. In this article we focus on the safety of using of kidneys with complete ureteral duplication, provided no hydronephrosis or ureterocele was present in the donor.
Methods:
From 1998 to March 2018 there were 1965 kidneys transplanted at our institution, including 27 kidneys with duplicated ureter, which corresponds to incidence of 1.4%. Patients' medical records, surgery protocols, and Poltransplant registries were searched for urinary complications.
Results:
In the double ureter group, urologic complications occurred in 4 patients (15.4%). Similarly, severe urinary complications developed in 4 patients from the control group (17.4%).
Conclusions:
Transplantation of kidneys with duplicated ureters appears to be a safe and feasible procedure.
Related Concept Videos
Imaging Studies I: Kidney, Ureter, and Bladder Studies
Anatomy of the Genitourinary System I: Kidneys and Ureters
Kidney Transplant I: Introduction
Ureters
Kidney Structure
Kidney Transplant II: Surgical Procedure

