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Giant Bilateral Hydronephrosis in A Newborn-A Case Report
Martina Frech-Dörfler1, Sabrina Durand2, Friederike Prüfer3
1Department of Pediatric Surgery, University Children's Hospital, 4031 Basel, Switzerland.
Children (Basel, Switzerland)
|December 23, 2022
Summary
Severe bilateral hydronephrosis in a newborn resolved with prompt intervention, demonstrating good kidney function preservation. Careful prenatal counseling is essential for discussing potential treatments and outcomes.
Area of Science:
- Pediatric Urology
- Neonatal Medicine
- Fetal Medicine
Background:
- Prenatal hydronephrosis is a common finding during pregnancy.
- While often benign, it can indicate urinary tract obstruction of varying severity.
- Giant hydronephrosis presents a significant diagnostic and management challenge.
Observation:
- A case of a male neonate with prenatally diagnosed bilateral giant hydronephrosis is presented.
- The fetus exhibited massive abdominal distension due to urine accumulation, obscuring kidney parenchyma on ultrasound.
- Postnatally, the infant required intubation for respiratory distress and immediate bilateral percutaneous nephrostomy.
Findings:
- Percutaneous nephrostomy led to rapid clinical stabilization and extubation.
- Post-intervention ultrasound revealed normal kidney parenchyma and size.
- Antegrade pyelography confirmed bilateral ureteropelvic junction obstruction.
- Serum creatinine normalized within one week.
Implications:
- Severe bilateral hydronephrosis can have a favorable outcome with preserved renal function.
- Accurate prenatal diagnosis and counseling are crucial.
- Discussing various treatment options without definitive outcome prediction is advised.

