title: Microureteroscopy in Children: Two First Cases.
abstract: BACKGROUND
  Urinary stones disease is becoming more common not only in adults but also in children. Most cases are resolved with extracorporeal shock wave lithotripsy, but miniaturization of endoscopes has increased the use of ureteroscopy in resolving ureteral stones, most notably in children.
  
  
  METHODS
  This presentation focuses on two cases of microureteroscopy. In both cases, the presence of lithiasis in the pelvic ureter was suspected to be the cause of ureter hydronephrosis, and a microureteroscopy was performed for treatment purposes. MicroPerc set 4.85F sheath was used to explore the pelvic ureter, thus avoiding the need to dilate the ureteral meatus or having to use the safety guide. Patients did not require a postoperative stent and were discharged within 24 hours of the procedure.
  
  
  CONCLUSIONS
  Use of microureteroscopy proved satisfactory in the two cases of children and it allows diagnosis and treatment of ureteral pathology in pediatric patients.
authors: Department of Urology, University General Hospital of Alicante , Alicante, Spain .
authors: Juan-Pablo
authors: JP
authors: Caballero-Romeu
authors: Department of Urology, "La Fe" Polytechnic University Hospital in Valencia , Valencia, Spain .
authors: Alberto
authors: A
authors: Budia-Alba
authors: Department of Urology, University Hospital of Vinalopo , Elche, Spain .
authors: Juan-Antonio
authors: JA
authors: Galan-Llopis
authors: Department of Urology, University General Hospital of Alicante , Alicante, Spain .
authors: Maria-Dolores
authors: MD
authors: Montoya-Lirola
authors: Department of Urology, University General Hospital of Alicante , Alicante, Spain .
authors: Pedro-José
authors: PJ
authors: García-Tabar
authors: Department of Urology, University General Hospital of Alicante , Alicante, Spain .
authors: Juan-Francisco
authors: JF
authors: Galiano-Baena
authors: Department of Pediatric Surgery, University General Hospital of Alicante , Alicante, Spain .
authors: Nuria
authors: N
authors: Albertos-Mira-Marcelí
authors: Department of Pediatric Surgery, University General Hospital of Alicante , Alicante, Spain .
authors: Jeronimo
authors: J
authors: Gonzalvez-Piñera