Abstract
BackgroundRecently, there has been a significant amount of debate concerning the question of whether laparoscopic surgery should be performed transperitoneally or retroperitoneally for treating large renal tumors.AimThe purpose of this research is to conduct a comprehensive review and meta-analysis of the previous research on the safety and efficacy of transperitoneal laparoscopic radical nephrectomy (TLRN) and retroperitoneal laparoscopic radical nephrectomy (RLRN) in the treatment of large-volume renal malignancies.MethodsAn extensive search of the scientific literature was carried out utilizing PubMed, Scopus, Embase, SinoMed, and Google Scholar in order to locate randomized controlled trials (RCTs) and prospective and retrospective studies that compared the effectiveness of RLRN versus TLRN in the treatment of for large renal malignancies. For the purpose of comparing the oncologic and perioperative outcomes of the two techniques, data were taken from the research studies that were included and pooled together.ResultsA total of 14 studies (five RCTs and nine retrospective studies) were incorporated into this meta-analysis. The overall RLRN had an association with significantly shorter operating time (OT) (MD [mean difference]: − 26.57; 95% CI [confidence interval]: − 33.39 to − 19.75; p < 0.00001); less estimated blood loss (EBL) (MD: − 20.55; CI: − 32.86 to − 8.23; p = 0.001); faster postoperative intestinal exhaust (MD: − 0.65; CI: − 0.95 to − 0.36; p < 0.00001). The terms of length of stay (LOS) (p = 0.26), blood transfusion (p = 0.26), conversion rate (p = 0.26), intraoperative complications (p = 0.5), postoperative complications (p = 0.18), local recurrence rate (p = 0.56), positive surgical margin (PSM) (p = 0.45), and distant recurrence rate (p = 0.7) did not show any differences.ConclusionsRLRN provides surgical and oncologic results similar to TLRN, with potential advantages regarding shorter OT, EBL, and postoperative intestinal exhaust. Due to the high heterogeneity among the studies, long-term randomized clinical trials are required to obtain more definitive results.
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