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Published on: July 8, 2025
Laparoscopic nephrectomy for a single-system ectopic ureter draining a small, dysplastic and poorly functioning
Byong Chang Jeong1, Dae Jung Lim, Sang Chul Lee
1Department of Urology, Seoul National University Boramae Hospital, Seoul, Korea.
Summary
Laparoscopic nephrectomy effectively treats children with ectopic ureters and dysplastic kidneys. This minimally invasive surgery offers a safe and successful solution for urinary incontinence caused by these conditions.
Area of Science:
- Pediatric Urology
- Minimally Invasive Surgery
- Renal Pathology
Background:
- Single-system ectopic ureters draining dysplastic kidneys can cause urinary incontinence in children.
- Preoperative imaging may not always accurately identify dysplastic kidneys.
Purpose of the Study:
- To evaluate the efficacy and safety of laparoscopic nephrectomy for single-system ectopic ureters in children.
- To assess the technique's success even when preoperative imaging is inconclusive.
Main Methods:
- A cohort of 16 girls with ectopic ureters and dysplastic kidneys underwent transperitoneal laparoscopic nephrectomy.
- Diagnostic imaging included ultrasonography, intravenous urography, 99mTc-DMSA renal scan, CT, and MRI.
Main Results:
- Laparoscopic nephrectomy successfully removed dysplastic kidneys and ectopic ureters in all 16 patients.
- The procedure had a mean operative time of 109 minutes with minimal blood loss.
- Postoperative hospital stay averaged 2.6 days, and all patients achieved urinary continence.
Conclusions:
- Laparoscopic nephrectomy is a safe and effective treatment for ectopic ureters draining dysplastic kidneys in children.
- The technique is successful even when preoperative imaging fails to localize the affected kidney.
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