Minimally invasive surgical approaches to kidney stones in children.

Department of Urology, Uludag University, Faculty of Medicine, 16059, Bursa, Turkey.
Current Urology Reports 06/2012; 13(4):298-306. DOI: 10.1007/s11934-012-0259-8
Source: PubMed

ABSTRACT The existing treatment options for pediatric urolithiasis are endoscopic methods. Extracorporeal shockwave lithotripsy (SWL) is the first-line option for most of the kidney stones smaller than 1 cm in diameter. For larger stones or refractory cases, minimally invasive surgical methods are preferred. Percutaneous nephrolithotomy (PCNL) is a well-established treatment modality for most patients. This technique has shown evolution also in children so that miniaturized or tubeless methods could now be performed. Recent series show that flexible ureteroscopy is also becoming an important treatment option in the pediatric urology armamentarium for treating the calyceal and lower pole stones. Open surgery has a very limited role and it may be of use when there is a need to do an adjuvant reconstructive surgery. With the increasing experience, laparoscopic surgery is becoming an alternative option that may have potential to replace the open techniques.

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    ABSTRACT: Purpose: We aimed to compare the outcomes of microperc and shockwave lithotripsy (SWL) for treatment of kidney stones in children. Patients and Methods: The medical records of 145 patients with opaque and single kidney stones treated with either SWL or microperc under the age of 15 years were retrospectively reviewed. Both groups were compared in terms of fluoroscopy and operation time, re-treatment, complications, success rate, and secondary and total number of procedures. Results: Microperc and SWL were performed on 37 and 108 pediatric patients, respectively. The mean age of the patients was 5.91±4.03 years (1-15) and 8.43± 4.84 (1-15) years in the SWL and microperc groups, respectively (p=0.004). The mean stone size was 11.32±2.84 (5-20) mm in the SWL group and 14.78±5.39 (6-32) mm in the microperc group (p˂0.001). In the SWL group, 31 (28.7%) patients underwent a second SWL session and 6 (5%) had a third session. Finally, 95 (88%) patients were stone-free at the end of the SWL sessions. In the microperc group, the stone-free rate was 89.2% in a single session (p=0.645). The mean duration of hospitalization was 49.2 ± 12.3 (16-64) hours in the microperc group and 8.4 ± 2.3 (6-10) hours per one session in the SWL group (p= <0.001). The fluoroscopy time was significantly longer in the microperc group compared with the SWL group (147.3±95.3 seconds vs. 59.6±25.9 seconds, p= <0.001). The rate of requirement for an auxiliary procedure was higher in the SWL group than in the microperc group. The overall complication rates for the microperc and SWL groups were 21.6% and 16.7%, respectively (p=0.498). Conclusions: The results of our study demonstrate that microperc provides a similar stone-free rate and a lower additional treatment rate compared with SWL in the treatment of kidney stone disease in children.
    Journal of endourology / Endourological Society 05/2013; · 1.75 Impact Factor