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Progression of mild ureteropelvic junction obstruction in infancy
1Department of Urology, University of Tennessee, Memphis.
Insights
Mild ureteropelvic junction obstruction can worsen in infants. Close monitoring with diuretic renography is crucial for timely intervention during the first year of life.
Area of Science:
- Pediatric Urology
- Nephrology
- Diagnostic Imaging
Background:
- Ureteropelvic junction obstruction is a common cause of congenital hydronephrosis.
- Mild or clinically silent obstruction may not require immediate surgical intervention in older children and adults.
Observation:
- Two infants with initially mild, asymptomatic ureteropelvic junction obstruction experienced a significant increase in obstruction severity.
- Diuretic renography proved effective for serial assessment and tracking the progression of the obstruction.
Findings:
- The study highlights the potential for silent ureteropelvic junction obstruction to progress in infants.
- Diuretic renography facilitates the objective documentation of obstruction worsening over time.
Implications:
- Close surveillance of infants with mild ureteropelvic junction obstruction is essential.
- Early detection of progressive obstruction ensures treatment at an optimal age, potentially improving outcomes.
Abstract:
Mild and clinically silent ureteropelvic junction obstruction was observed to progress in severity in 2 infants. Diuretic renography was useful in serial evaluation and documentation of progression. The possible mechanism for such progression of obstruction is proposed. Although mild obstruction in the older child and adult can be followed successfully without surgery, it appears that close follow-up of mild obstruction during the first year of life is necessary to detect and assure treatment of progressive obstruction at an optimum age.