Percutaneous nephrolithotomy in older children

Purpose: The aim of this study was to evaluate the safety and efficacy of p ercutaneous nephrolithotomy (PCNL) in pediatric patients, older than 8 year s, without any technical and instrumental modifications, Methods: The authors retrospectively evaluated the data of 16 percutaneousl y treated kidneys of 14 patients with a mean age of 11 years (range, 8 to 1 7). The mean stone burden was calculated as 301 mm(2) (range, 120-750). Per cutaneous accesses were done under fluoroscopic control, and 24F to 30F Amp latz dilators were used depending on patient size. Ultrasonic and laser lit hotripsy were performed to fragment calculi. Results: Mean operating time was 111 minutes (range, 60 to 210 min) and no intraoperative or postoperative major complication was observed. Mean hemog lobin drop after the procedure was 1.16 g/dL (range, 0.3 to 2.8), Blood tra nsfusion was required in only 1 patient, and mean postoperative hospitaliza tion was 4.6 days (range, 3 to 10). Stone-free rate was calculated as 69% ( 11 of 16), but with residual fragments smaller than 4 mm, the success rate becomes 100% at patient's discharge. Conclusions: PCNL is an effective and safe form of therapy in pediatric sto ne disease. Especially in older children the use of the same instruments an d technique as in adults may achieve equal results without any increased ri sk of possible morbidity and need of blood transfusion. J Pediatr Surg 35:1 336-1338, Copyright (C) 2000 by W.B. Saunders Company.