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Ureteropelvic junction obstruction in children with renal ectopy
Journal D'Urologie
|January 1, 1984
Summary
Renal ectopy in children frequently causes hydronephrosis due to ureteropelvic junction obstruction or vesicoureteral reflux. Surgical reconstruction, often at the renal level, is necessary for most cases.
Area of Science:
- Pediatric Urology
- Congenital Abnormalities
- Nephrology
Background:
- Renal ectopy is a congenital condition where kidneys are abnormally positioned.
- Hydronephrosis, or kidney swelling, is a common complication in children with renal ectopy.
Purpose of the Study:
- To investigate the causes and management of hydronephrosis in children with renal ectopy.
- To evaluate surgical outcomes for ureteropelvic junction obstruction and vesicoureteral reflux in these patients.
Main Methods:
- Retrospective analysis of 49 children diagnosed with renal ectopy.
- Excretory urography used to assess renal anatomy and identify hydronephrosis.
- Surgical intervention outcomes were reviewed for ureteropelvic junction obstruction and vesicoureteral reflux.
Main Results:
- 51% of children with renal ectopy presented with hydronephrosis.
- Causes included primary ureteropelvic junction obstruction (17 children) and vesicoureteral reflux (6 children).
- Vesicoureteral reflux was prevalent, seen in 52% with crossed renal ectopy and 70% with pelvic kidney.
Conclusions:
- Hydronephrosis in renal ectopy is often caused by ureteropelvic junction obstruction or vesicoureteral reflux.
- Surgical reconstruction at the renal level is frequently required.
- Ureterocalicostomy offers a promising alternative to pyeloplasty for improved drainage.
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