An interventional study of Retrograde Intrarenal Surgery in Pediatric Renal Stone, sponsored by South Valley University. Recruiting at 1 site in Egypt. Open to participants aged 1 Year to 18 Years. Per ClinicalTrials.gov, last updated 2026-07-14.
Sponsored by South Valley University · Not applicable, Interventional, and Treatment
Pediatric nephrolithiasis accounts for approximately 2-3% of all stone disease cases, with recent reports indicating a rising prevalence of up to 10.6%. This increasing incidence poses a growing public health concern. The primary objective in managing pediatric renal stones is complete stone clearance while minimizing complications and improving the patient's quality of life.
Pediatric nephrolithiasis accounts for approximately 2-3% of all stone disease cases, with recent reports indicating a rising prevalence of up to 10.6%.Multiple treatment modalities are currently available, ranging from non-invasive pharmacologic options to minimally invasive techniques such as extracorporeal shockwave lithotripsy (ESWL), retrograde intrarenal surgery (RIRS), and percutaneous nephrolithotomy (PCNL).
Treatment selection is primarily guided by stone size, location, and complexity. Importantly, the chosen intervention should aim to achieve a high stone-free rate (SFR) with the lowest possible complication rate.
Minimally invasive technique is considered the first-line of treatment for renal stones in children due to its favorable safety profile and minimally invasive nature. In such cases, endourological options like RIRS and mini-PCNL serve as favourable line of treatments.
RIRS is a minimally invasive procedure that offers advantages such as reduced perioperative morbidity, lower bleeding risk, and quicker recovery compared to mini PCNL. Nonetheless, its stone clearance rate may be inferior to mini PCNL, particularly for larger stones. RIRS often requires DJ stenting and may lead to repeated interventions, which can result in lower urinary tract symptoms (LUTS) and negative impact on quality of life.
Mini-PCNL, although highly effective, carries a higher risk of complications, including bleeding and adjucnt oragan injury particularly due to tract dilation.To reduce these risks, modified PCNL techniques have been introduced, such as ultramini-PCNL, and micro-PCNL. These smaller-caliber systems have demonstrated greater safety profiles in children and higher efficacy than ESWL, making them promising in pediatric stone management.
South Valley University is the lead sponsor of 153 studies on the registry; 46 are open to participants now.
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GFR (glomerular filtration rate) is how much blood the kidneys filter each minute. It is usually estimated from a blood test — eGFR, by formulas such as CKD-EPI or MDRD — and some studies ask for it to be measured directly instead. Usually given in mL/min/1.73 m².
Check the method, the units and the minimum the study states. A value of 90 or above is in the normal-or-high range, but kidney damage can show in other tests too.
A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.
GFR and eGFR (kidney filtering)
GFR (glomerular filtration rate) is how much blood the kidneys filter each minute. It is usually estimated from a blood test — eGFR, by formulas such as CKD-EPI or MDRD — and some studies ask for it to be measured directly instead. Usually given in mL/min/1.73 m².
Check the method, the units and the minimum the study states. A value of 90 or above is in the normal-or-high range, but kidney damage can show in other tests too.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Contraindication
A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
About 30 child suffering from renal stone will undergo mini percutaneous nephrolithotomy
Procedure: Retrograde Intrarenal Surgery
About 30 child suffering from renal stone will undergo retrograde intrarenal surgery
Procedure: Retrograde Intrarenal Surgery
to compare the efficacy and safety of retrograde intrarenal surgery (RIRS) versus mini-percutaneous nephrolithotomy (mini-PCNL) in the management of renal stones ≤2 cm in pediatric patients.
Also known as: mini Percutaneous Nephrolithotomy
Measure Stone-Free Rate:
Defined as the absence of residual stones or the presence of clinically insignificant residual fragments (CIRF) \<4 mm or absent and this will be better results, but if Clinical significant residual fragments \> or Equal 4 mm may need Auxillary procedure Evaluation the patients after the operation by Stone-Free Rate as an indicator of surgical success.
Time frame: 6 months
Plan to share: No
No publications or documents are linked to this record.
Started Aug 2025 (actual). Primary completion is estimated for Aug 2026, 12 months after the start.
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