Home > Journals > Minerva Urologica e Nefrologica > Past Issues > Articles online first > Minerva Urologica e Nefrologica 2021 Jan 13



To subscribe
Submit an article
Recommend to your librarian


Publication history
Cite this article as



Minerva Urologica e Nefrologica 2021 Jan 13

DOI: 10.23736/S0393-2249.20.04135-1


language: English

Comparison of outcomes between laparoscopic and robot-assisted partial nephrectomy for complex renal tumors (RENAL score ≥ 7 or maximum tumor size > 4cm): a systematic review and meta-analysis

Pengxiu LIN 1, Minhong WU 1 , Hongyong GU 1, Lanzhen TU 1, Shilan LIU 2, Zhiling YU 1, Qingsheng CHEN 1, Cailing LIU 1

1 Department of Urology, Yichun people's hospital, Yichun, China; 2 Yichun vocational and technical college, China

INTRODUCTION: We reviewed current studies and performed a meta-analysis to compare outcomes between laparoscopic partial nephrectomy (LPN) and robot-assisted partial nephrectomy (RAPN) treating complex renal tumors (RENAL score ≥ 7 or maximum clinical tumor size > 4cm).
EVIDENCE ACQUISITION: Using the databases of PubMed, Embase, and the Cochrane Library, a comprehensive literature search was performed in April, 2020. Pooled odds ratios (ORs) or weighted mean differences (WMDs) with 95% confidence intervals (CIs) were calculated using fixed-effect or random-effect model. Publication bias was evaluated by funnel plots.
EVIDENCE SYNTHESIS: Ten observational studies including 5193 patients (LPN: 1574; RAPN: 3619) were included. There was no significant difference between the two groups regarding conversion to open (P = 0.07) surgery, all complications (P = 0.12), grade 1-2 complications (P = 0.10), grade 3-5 complications (P = 0.93), operative time (P = 0.94), estimated blood loss (P = 0.17). Patients undergoing LPN had a significant higher rate of conversion to radical (OR: 4.33; 95% CI: 2.01-9.33; p < 0.001), a longer ischemia time (IT, P < 0.001; WMD: 3.02 min; 95% CI, 1.67 to 4.36), a longer length of stay (LOS, P < 0.001; WMD: 0.67 days; 95% CI, 0.35 to 0.99), a lower rate of positive surgical margin (P = 0.03; OR: 0.71; 95% CI, 0.53 to 0.96), a greater eGFR decline (P < 0.001; WMD: 2.41 ml/min/1.73 m2; 95% CI, 1.22 to 3.60), a higher rate of CKD upstaging (P < 0.001; OR:2.44; 95% CI, 1.54 to 3.87). No obvious publication bias was observed.
CONCLUSIONS: For complex renal tumors, RAPN is more favorable than LPN in terms of lower rate of conversion to radical surgery, shorter IT, shorter LOS, less eGFR decline, and lower rate of CKD upstaging. Methodological limitations of observational studies should be taken into account in interpreting these results.

KEY WORDS: Kidney neoplasms; Complex tumor; Partial nephrectomy; Laparoscopy; Robotics; Outcome

top of page