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  • Title: Meta-analysis of robot-assisted vs conventional laparoscopic and open pyeloplasty in children.
    Author: Cundy TP, Harling L, Hughes-Hallett A, Mayer EK, Najmaldin AS, Athanasiou T, Yang GZ, Darzi A.
    Journal: BJU Int; 2014 Oct; 114(4):582-94. PubMed ID: 25383399.
    Abstract:
    OBJECTIVE: To 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 METHODS: Studies 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. RESULTS: In 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. CONCLUSIONS: Existing 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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