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Actas Urológicas Españolas

versión impresa ISSN 0210-4806


ROMERO OTERO, J. et al. The lithiasis in the upper urinary tract in children. Actas Urol Esp [online]. 2007, vol.31, n.5, pp.532-540. ISSN 0210-4806.

Introduction: Urolithiasis in the pediatric age is a growing problem. In the developed world they are of calcium oxalate and in the upper urinary tract. It is very similar to the presentation of lithiasis in adults, so we have to make an effort to apply the experience in this age to the children. The shock wave lithotripsy is admitted as the first treatment for this pathology in the pediatric population already. The endourological approach must be use as a common approach in this group. We present our technique and experience. Material and methods: A retrospective, descriptive study of the children diagnosed of lithiasis in the upper urinary tract that were treated by an endourological technique in our centre between January 1992 and January 2005. We gathered data on: 1.) Preoperative: age, sex, clinical manifestations, size (mm) and position of the lithiasis (we divided the upper urinary tract in: renal, proximal third, medial third and distal third) 2.) Operative variable: endourological technique: percutaneus neprolithotomy or ureteroscopy. Reconversion to open surgery. 3.) Postoperative variables: time since surgery, complications and the current state of the patient (ultrasonography and renal function). Results: Seven children, 4 boys and 2 girls with an age range of 2,5 to 14 years, underwent operation using an endourological technique. Lumboabdominal pain was the main clinical manifestation (4/7). The lithiasis size was 4-7mm, with the exception of a staghorn calculis. The calculis were: 5 ureteral proximal, 1 ureteral distal and one in the kidney (staghound stone). We performed one percutaneus neprolithotomy for the staghorn calculi. We removed completly the stone and had no complications. The 6 other procedures were ureteroscopies. In 3 of them we removed the calculi (4/7 success rate of 57%). The rest procedures we needed to transform in open surgery. With a following time of 1-13 years all of them are asymptomatic, and with ultrasonography and renal function in the normal limits. We did see no complications. Conclusion: The endourological treatment for urolithiasis in pediatric patients is possible but must be individualized in each case. With the development of new endourological material and more surgical experience this technique will be to the reach of the most of the urologists.

Palabras clave : Urolithiasis; Urinary lithiasis; Endourology; Lithiasis in children; Percutaneus nefrolithotomy; Ureteroscopy.

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