Related Experiment Videos
Hypercalciuria and pediatric stone recurrences with and without structural abnormalities.
1Department of Urology, LeBonheur Children's Medical Center and University of Tennessee, Memphis, Memphis, Tennessee, USA.
The Journal of Urology
|August 25, 2000
Summary
Hypercalciuria (high calcium in urine) is a significant risk factor for recurrent kidney stones in children. Stone recurrence can occur years after the initial episode, even into adulthood.
Area of Science:
- Pediatric Nephrology
- Urology
- Metabolic Disorders
Background:
- Recurrent kidney stones pose a significant health challenge in pediatric populations.
- Hypercalciuria is a common metabolic abnormality associated with nephrolithiasis in children.
Purpose of the Study:
- To determine the extent to which hypercalciuria serves as a risk factor for recurrent calcium oxalate or non-struvite stones in children.
- To assess the long-term stone recurrence rate in pediatric patients diagnosed with hypercalciuria after an initial stone episode.
Main Methods:
- A cohort of 44 pediatric patients with kidney stones and diagnosed hypercalciuria was identified.
- Long-term follow-up data was collected for 27 of these patients, including those with and without structural urinary tract abnormalities.
Main Results:
- An overall stone recurrence rate of 33% was observed in the 27 patients with adequate long-term follow-up.
- Recurrences occurred between 3 to 15 years post-initial episode (average 7.2 years).
- A positive family history of kidney stones was significantly more common in patients with recurrent stones (p=0.04).
Conclusions:
- Hypercalciuria is confirmed as a risk factor for stone recurrence in pediatric patients, irrespective of underlying structural abnormalities.
- The potential for new stone formation persists for many years, extending beyond childhood and into post-puberty.