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Hydronephrosis, Pediatric

J. Christopher Austin, MD and Michael C. Carr, MD, PhD Reviewed 10/2018
 


BASICS

DESCRIPTION

  • Hydronephrosis: dilation of the renal pelvis (pelviectasis) and calyces (caliectasis) due to excess urine in the collecting system of the kidney

  • Hydroureteronephrosis: dilation of the...

DIAGNOSIS

HISTORY

  • Newborns

    • Antenatal hydronephrosis: presence of hydronephrosis or hydroureteronephrosis

    • If unilateral, severity of hydronephrosis and the status of contralateral kidney

    • If bilateral, pres...

TREATMENT

GENERAL MEASURES

Neonates with severe hydronephrosis or high-risk findings such as a ureterocele or ectopic ureter are started on prophylactic antibiotics of amoxicillin (10 to 15 mg/kg daily...

ONGOING CARE

FOLLOW-UP RECOMMENDATIONS

  • Ureteropelvic junction obstruction

    • After initial evaluation, infants are usually followed with serial studies, either ultrasound or renal scans, depending on the d...

ADDITIONAL READING

  • Darge K, Higgins M, Hwang TJ, et al. Magnetic resonance and computed tomography in pediatric urology: an imaging overview for current and future daily practice. Radiol Clin North Am...

CODES

ICD9

  • 591 Hydronephrosis

  • 753.29 Other obstructive defects of renal pelvis and ureter

  • 753.21 Congenital obstruction of ureteropelvic junction

ICD10

  • N13.30 Unspecified hydronephrosis

  • N13.39 Other hydrone...

FAQ

  • Q: If my baby has hydronephrosis affecting only one kidney, will he need a kidney transplant?

  • A: In the absence of oligohydramnios and bilateral hydroureteronephrosis, it would be very rare that a ...

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