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Published on: August 14, 2019
Transient pseudohypoaldosteronism: a potentially severe condition affecting infants with urinary tract malformation
X Delforge1, G Kongolo2, A Cauliez3
1Department of Pediatric Urology, CHU Amiens, France.
Secondary pseudohypoaldosteronism (S-PHA) in infants with urinary tract malformations (UTM) can cause severe electrolyte imbalances. Prompt treatment of S-PHA, often resolving with medical management, is crucial for affected children.
Area of Science:
- Pediatric Nephrology
- Urology
- Endocrinology
Background:
- Secondary pseudohypoaldosteronism (S-PHA) is a critical condition in young children with urinary tract malformations (UTM).
- S-PHA can lead to life-threatening electrolyte disturbances.
Purpose of the Study:
- To outline the diagnostic approach for S-PHA in pediatric patients with UTM.
- To propose effective management strategies for S-PHA in this population.
Main Methods:
- Retrospective review of institutional cases of S-PHA associated with UTM.
- Comprehensive literature search of the PubMed database for related studies.
Main Results:
- 116 cases of S-PHA with UTM were analyzed; 92.2% of patients were under 6 months old, and 81.9% were male.
- Urinary tract infection (UTI) was present in 90.5% of cases. S-PHA was linked to bilateral UTM or solitary kidney in the absence of UTI.
- 76.5% of S-PHA cases resolved with medical treatment alone; surgical intervention for UTM also resolved electrolyte imbalances.
Conclusions:
- S-PHA pathogenesis remains unclear, but renal tubular immaturity and bilateral UTM may contribute.
- Early electrolyte monitoring is recommended for infants under 6 months with UTM or UTI before urological procedures.
- S-PHA-related electrolyte abnormalities often resolve with appropriate intravenous electrolyte solutions, UTI treatment, and/or surgery.
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