Abstract
ContextRadical nephrectomy (RN) is the gold standard treatment for large and locally advanced renal tumors. Although robot-assisted radical nephrectomy (RRN) is being increasingly adopted, it remains unclear whether it offers benefits over standard laparoscopic radical nephrectomy (LRN) or open radical nephrectomy (ORN). ObjectiveTo compare the outcomes of robotic surgery to those of laparoscopic and open surgery in patients undergoing RN for renal cell carcinoma (RCC). Evidence acquisitionA systematic search was performed across MEDLINE, EMBASE, and Web of Science for retrospective and prospective studies comparing RRN to LRN or ORN. A meta-analysis evaluated perioperative safety, effectiveness, survival, and cost-effectiveness outcomes. The weighted mean difference (WMD) and odds ratio (OR) were used to compare continuous and dichotomous variables, respectively. Quality was assessed using the Newcastle-Ottawa scale. Sensitivity analyses were performed to assess the robustness of the estimates. Evidence synthesisTwelve studies involving 64 221 patients were identified and included in the analysis. Compared to LRN, RRN was associated with statistically significant longer operative time (WMD 37.44 min; p = 0.03), shorter length of stay (WMD –0.84 days; p = 0.02) and higher total costs (WMD US$4700; p < 0.001). Compared to ORN, RRN was associated with shorter length of stay (WMD –3.06 days; p = 0.002), fewer overall complications (OR 0.56; p < 0.001), lower estimated blood loss (WMD –702 ml; p = 0.01), and higher total hospital costs (WMD US$4520; p = 0.004). There was high heterogeneity across all analyses. ConclusionsIn patients undergoing RN for RCC, RRN seems to offer some key advantages compared to ORN, including shorter hospitalization and fewer complications. Compared to LRN, RRN provides similar surgical outcomes but at higher total costs. These findings should be interpreted within the limitations of this type of analysis, given high heterogeneity between studies and poor robustness for most outcomes. Randomized clinical studies with long-term follow-up are needed to obtain more definitive results. Patient summaryIn patients with renal cell carcinoma, robot-assisted radical nephrectomy shows perioperative advantages compared to open radical nephrectomy, but not compared to laparoscopic radical nephrectomy.
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