Related Experiment Videos
[Primary hyperoxaluria: Tunisian experience apropos of 24 pediatric cases]
Insights
Primary hyperoxaluria in children often leads to severe kidney damage and nephrocalcinosis. Early diagnosis and intervention are crucial for managing this rare genetic disorder.
Area of Science:
- Nephrology
- Pediatrics
- Genetics
Context:
- Primary hyperoxaluria is a rare metabolic disorder.
- It leads to oxalate deposition in kidneys and other organs.
- Pediatric cases present unique diagnostic and management challenges.
Purpose:
- To describe the clinical presentation and outcomes of primary hyperoxaluria in a pediatric cohort.
- To analyze the progression of renal function and associated complications.
- To evaluate the effectiveness of interventions like stone removal and lithotripsy.
Summary:
- Twenty-four children with primary hyperoxaluria were analyzed, with a mean age at diagnosis of 6.3 years.
- Most patients presented with significant renal impairment, urolithiasis, and nephrocalcinosis.
- Renal function outcomes varied, with some improvement after stone removal, while others progressed to end-stage renal disease.
Impact:
- Highlights the significant renal morbidity associated with pediatric primary hyperoxaluria.
- Underscores the importance of timely diagnosis for better management strategies.
- Provides insights into the long-term complications, including oxalate bone disease and retinal involvement.
Abstract:
We report on 24 children (10 girls) presenting with primary hyperoxaluria. The mean age at diagnosis was 6.3 years (range: 3 months-14.8 years). The mean interval between initial symptom and diagnosis was 1.3 year. The average follow-up period was 22 months (range: 1-60 months). At the time of diagnosis the renal function was normal in 6 children, moderately altered in 1 and severely in 17. During the follow-up the renal function remained stable in 6 patients, improved in 2, deteriorated in 4. The 12 patients with end-stage renal disease at diagnosis remained unchanged. Urolithiasis were present in all patients older than 2 years, and in 1 among the 5 infants. Medullary nephrocalcinosis was observed in 3 patients in whom the renal function was preserved. Diffuse nephrocalcinosis was present in all patients with end-stage renal failure. Improvement of renal function was secondary to stone removal in 2 patients. Extracorporeal shock wave lithotripsy performed in 7 patients was efficient only in 3. In 10 patients oxalate bone disease was correlated with both renal function and dialysis duration, whereas retinal involvement noted in 6 patients was not.