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Retrograde proximal rigid ureteroscopy and pyeloscopy in prepubertal children: safe and effective
O Alex Lesani1, Jeffrey S Palmer
1Division of Pediatric Urology, Rainbow Babies and Children's Hospital, Case Western Reserve University School of Medicine, Cleveland, Ohio 44106, USA.
Insights
Proximal rigid ureteroscopy is safe and effective for treating kidney stones and diagnosing hematuria in children under 12. This procedure offers advantages over flexible ureteroscopy for pediatric urological care.
Area of Science:
- Pediatric Urology
- Endourology
Background:
- Rigid ureteroscopy is typically used for distal ureteral procedures in adults due to risks associated with proximal use.
- The safety and efficacy of proximal rigid ureteroscopy in prepubertal children remain largely unestablished.
Purpose of the Study:
- To evaluate the safety and outcomes of proximal rigid ureteroscopy and pyeloscopy in prepubertal children.
- To determine its utility in treating ureteral and renal pelvic calculi and evaluating hematuria.
Main Methods:
- Retrospective evaluation of prepubertal children (≤12 years) undergoing attempted rigid proximal ureteroscopy/pyeloscopy.
- Indications included calculi treatment and hematuria evaluation.
- Postoperative assessment included ultrasonography and radiography.
Main Results:
- 24 procedures performed in children aged 3.4-12 years.
- 83% (20/24) successful with rigid ureteroscopy; 17% (4/24) converted to flexible endoscopy.
- All calculi patients were rendered stone-free; no complications reported.
Conclusions:
- Proximal rigid ureteroscopy and pyeloscopy are safe and effective for pediatric urological procedures.
- The technique is suitable for treating proximal ureteral/renal pelvic calculi and diagnostic evaluations.
- Offers potential advantages over flexible ureteroscopy in this age group.
Purpose:
Traditionally, rigid ureteroscopy in adults has been reserved for distal ureteral procedures, due to the risk of injury associated with proximal ureteroscopy. However, the safety of proximal rigid ureteroscopy in prepubertal children is not well established.
Materials And Methods:
We retrospectively evaluated all prepubertal children (12 years old and younger) who underwent attempted rigid proximal ureteroscopy and pyeloscopy. The indications for ureteroscopy were treatment of ureteral and/or renal pelvic calculi, and evaluation of hematuria. All patients were evaluated postoperatively with renal and bladder ultrasonography and abdominal radiography (if stone was visible before treatment).
Results:
A total of 24 consecutive children 3.4 to 12 years old underwent 24 ureteropyeloscopic procedures. Of these children 20 (83%) successfully underwent 20 rigid ureteroscopic and pyeloscopic procedures. However, 4 procedures (17%) were converted from rigid to flexible endoscopy to perform 4 successful ureteropyeloscopies. The indications for ureteroscopy were treatment of ureteral and/or renal pelvic calculi in 22 patients and evaluation of hematuria in 2. Followup was 0.6 to 3.6 years (mean 1.9) for the patients undergoing rigid ureteropyeloscopy. All children with calculi were rendered stone-free based on direct visualization by complete ureteroscopy and pyeloscopy of the affected system. No complications occurred during any of the procedures.
Conclusions:
Proximal rigid ureteroscopy and pyeloscopy can be safely applied toward treatment of proximal ureteral and renal pelvic calculi as well as diagnostic ureteropyeloscopy in prepubertal children. The technique has several advantages compared to flexible ureteroscopy.
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