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Ureteropelvic Junction Obstruction, Pediatric

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


BASICS

DESCRIPTION

Ureteropelvic junction (UPJ) obstruction is a partial blockage of the kidney at the point where the renal pelvis transitions into the proximal ureter. 

EPIDEMIOLOGY

  • 45% of all cases of...

DIAGNOSIS

HISTORY

  • Antenatal

    • If unilateral, timing and severity of hydronephrosis and status of the contralateral kidney are factors.

    • When bilateral or affecting a solitary kidney, renal insufficiency is ...

TREATMENT

GENERAL MEASURES

  • The decision to observe or surgically correct a UPJ obstruction depends on several factors. One must consider the age and overall health of the neonate, the amount of functio...

ADDITIONAL READING

  • Carr MC, Casale P. Anomalies in surgery of the ureter in children. In: Wein AJ, Kavoussi LR, Novick AC, et al, eds. Campbell-Walsh Urology. 10th ed. Philadelphia, PA: W.B. Saunder...

CODES

ICD9

  • 753.21 Congenital obstruction of ureteropelvic junction

  • 593.4 Other ureteric obstruction

  • 593.70 Vesicoureteral reflux unspecified or without reflux nephropathy

ICD10

  • Q62.39 Other obstructive def...

FAQ

  • Q: My unborn baby has hydronephrosis. My obstetrician told me that it is most likely a UPJ obstruction. Is my baby going to need surgery to correct this?

  • A: Not necessarily; only ~1/3 of babies wit...

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