[Ureteral stone in pediatric and treatment with lithotripsy]

Background and Objective: transureteral lithotripsy is an effective procedure in lower ureteral stone. This study was done to evaluate lithotripsy method in pediatric ureteral stones in Mashhad's Imam-Reza Hospital

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Materials and Methods: in our institute 38 patients went under ureteroscopy and lithotripsy for ureteral stones. Mean age in our patients was 6.8 years [Range 2-13 years]. 16 patients were male and 22 patients were female. The mean stone size was 7 mm [Range 6-16 mm]. Ultrasonography and KUB or IVP was performed in all cases. After general anesthesia and cystoscopy guide wire introduced in ureter, ureteroscopy were performed for lithotripsy used ultrasound pneumatic or electrohydrolic

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Results: stone were located in the distal ureter in 32 patients, in the midureter in 4 and in the proximal ureter in 2 cases. Ureteroscopy was successfully in 35 cases. Lithotripsy was used: Ultrasound, electrohydrolic or pneumatic. We were unable to introduce the ureteroscope into the ureter in 3 patients. In 3 patients stone migrated to the kidney after ureteroscopy. Then, they candidated for ESWL. Stone free was done in 32 cases [85%]. A complication was 25% and treated with medical treatment

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Conclusion: our investigation demonstrates the high success rate ureteroscopy in pediatric group especially with a small caliber ureteroscope. Ureteroscopy should be considered the first choice for treatments of calculi in the distal ureter in children