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ObjectiveTo critically analyse outcomes for robot-assisted pyeloplasty (RAP) vs conventional laparoscopic pyeloplasty (LP) or open pyeloplasty (OP) by systematic review and meta-analysis of published data. Patients and MethodsStudies published up to December 2013 were identified from multiple literature databases. Only comparative studies investigating RAP vs LP or OP in children were included. Meta-analysis was performed using random-effects modelling. Heterogeneity, subgroup analysis, and quality scoring were assessed. Effect sizes were estimated by pooled odds ratios and weighted mean differences. Primary outcomes investigated were operative success, re-operation, conversions, postoperative complications, and urinary leakage. Secondary outcome measures were estimated blood loss (EBL), length of hospital stay (LOS), operating time (OT), analgesia requirement, and cost. ResultsIn all, 12 observational studies met inclusion criteria, reporting outcomes of 384 RAP, 131 LP, and 164 OP procedures. No randomised controlled trials were identified. Pooled analyses determined no significant differences between RAP and LP or OP for all primary outcomes. Significant differences in favour of RAP were found for LOS (vs LP and OP). Borderline significant differences in favour of RAP were found for EBL (vs OP). OT was significantly longer for RAP vs OP. Limited evidence indicates lower opiate analgesia requirement for RAP (vs LP and OP), higher total costs for RAP vs OP, and comparable costs for RAP vs LP. ConclusionsExisting evidence shows largely comparable outcomes amongst surgical techniques available to treat pelvi-ureteric junction obstruction in children. RAP may offer shortened LOS, lower analgesia requirement (vs LP and OP), and lower EBL (vs OP); but compared with OP, these gains are at the expense of higher cost and longer OT. Higher quality evidence from prospective observational studies and clinical trials is required, as well as further cost-effectiveness analyses. Not all perceived benefits of RAP are easily amenable to quantitative assessment.

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Robotic-assisted resection of choledochal cysts in children is safe. They made a rapid recovery with a good cosmetic outcome.

This study shows that the median incidence of hydrocele after varicocele surgery is about 12% but it seems higher after artery nonsparing vs sparing procedures (17.6% vs 4.3%). On the contrary, no difference was found when the procedure was performed using video surgery or with the open approach. Hydroceles generally develop a few months later but may also appear several years after the surgical repair of varicocele. Noninvasive procedures (scrotal punctures or clinical observation) seem to induce total hydrocele regression in more than 82% of cases. Children who undergo surgery for varicocele should undergo long-term followup to detect a possible hydrocele. In fact, the 5.4% of children lost to followup in our study may potentially have had a hydrocele. Surgery is not always successful for this condition, as shown in the 2 cases of recurrent hydrocele after surgical repair.