Clinically Insignificant Residual Fragments: Is It an Appropriate Term in Children?

Objective: To assess the outcome of clinically insignificant residual fragments (CIRFs) after shock wave lithotripsy (SWL) and percutaneous nephrolithotomy (PNL) in children.

Methods: Sixty-one children with CIRFs diagnosed by noncontrast computed tomography (NCCT) 3 months after SWL and 1 month after PNL with documented follow-up ≥6 months were included in the study. Children were evaluated by urinalysis, urine culture, plain abdominal radiography, and urinary ultrasonography or noncontrast computed tomography.

Risk factors for formation of steinstrasse after extracorporeal shock wave lithotripsy for pediatric renal calculi: a multivariate analysis model.

Objectives: To define various stone, renal and therapy factors that could affect steinstrasse (SS) formation after extracorporeal shock wave lithotripsy (SWL) for pediatric kidney stones. Thus, SS could be anticipated and prophylactically avoided

Methods: From January 1999 through December 2012, 317 children underwent SWL with Dornier Lithotripter S for the treatment of renal stones. Univariate and multivariate statistical analyses of patients, stones and therapy characteristics in relation to the incidence of SS were performed to detect the factors that had a significant impact on SS formation.