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[The Whitaker test. Its reliability and place in the study of congenital malformative uropathies]
O Bouchot1, L Le Normand, E Couteau
1Clinique Urologique, Hôtel-Dieu, Nantes.
Insights
Whitaker
Area of Science:
- Pediatric Urology
- Nephrology
Background:
- Hydronephrosis and megaureter are common conditions in children.
- Accurate urodynamic assessment is crucial for diagnosis and management.
Purpose of the Study:
- To evaluate the long-term reliability of Whitaker's test for urodynamic assessment in children.
- To compare Whitaker's test with diuretic renography.
Main Methods:
- 47 children with hydronephrosis or megaureter underwent Whitaker's test.
- Long-term follow-up included clinical evaluation, radiography, and diuretic renography (average 3.20 years).
Main Results:
- Whitaker's test demonstrated excellent reliability (86.6%) in pediatric urodynamic assessment.
- Reliability was higher for hydronephrosis (90.5%) than megaureter (83.3%).
- 43% discordance was observed between Whitaker's test and diuretic renography, with Whitaker's test proving essential in equivocal cases.
Conclusions:
- Whitaker's test is a reliable urodynamic assessment tool for pediatric hydronephrosis and megaureter.
- Diuretic renography is useful but Whitaker's test is essential for diagnosing obstruction in complex cases.
Abstract:
47 children with hydronephrosis or megaureter under went urodynamic assessment by Whitaker's test. The reliability of this test, evaluated on a long-term follow-up (3.20 years in average) by clinical, radiographic and diuretic renogram test, was excellent in 86.6 per cent. This reliability was better in hydronephrosis (90.5%) than in megaureter (83.3%). The comparison between diuretic renogram and Whitaker's test showed a discordance in 43 per cent. But the diuretic renogram was still a good urodynamic assessment when the curve was not equivocal. In others cases, Whitaker's test was essential for the diagnosis of obstruction.