Functional, oncological outcomes and safety of laparoscopic partial nephrectomy versus open partial nephrectomy in localized renal cell carcinoma patients with high anatomical complexity

Perioperative, functional, and oncologic outcomes of laparoscopic partial nephrectomy versus open partial nephrectomy for complex renal tumors: a systematic review and meta-analysis

Background

The primary aim of this present study is to undertake a comprehensive comparative analysis of the perioperative, functional, and oncologic outcomes associated with laparoscopic partial nephrectomy (LPN) and open partial nephrectomy (OPN) as interventions for the treatment of complex renal tumors, defined as PADUA or RENAL score ≥ 7.

Methods

We systematically carried out an extensive search across four electronic databases, namely PubMed, the Cochrane Library, Embase, and Web of Science. Our objective was to identify pertinent studies published in the English language up to December 2023, and encompassed controlled trials comparing LPN and OPN as interventions for complex renal tumors.

Results

This study encompassed a total of seven comparative trials, involving 934 patients. LPN exhibited a noteworthy reduction in the length of hospital stay (weighted mean difference [WMD] -2.06 days, 95% confidence interval [CI] -2.62, -1.50; p < 0.00001), blood loss (WMD -34.05mL, 95% CI -55.61, -12.48; p = 0.002), and overall complications (OR 0.38, 95% CI 0.19, 0.79; p = 0.009). However, noteworthy distinctions did not arise between LPN and OPN concerning parameters such as warm ischemia time, renal function, and oncological outcomes.

Conclusions

This study reveals that LPN presents several advantages over OPN. These benefits encompass a shortened hospital stay, diminished blood loss, and a reduced incidence of complications. Importantly, LPN achieves these benefits while concurrently upholding comparable renal function and oncological outcomes.

Systematic Review Registration

https://www.crd.york.ac.uk/prospero/display_record.php?RecordID=457716, identifier CRD42023453816.

Perioperative, functional, and oncologic outcomes of minimally-invasive surgery for highly complex renal tumors (RENAL or PADUA score ≥ 10): an evidence-based analysis

The primary objective of the current study is to undertake a comparative analysis of the effectiveness and safety of minimally-invasive partial nephrectomy (MIPN; including laparoscopic and robotic approaches) and open partial nephrectomy (OPN) for the treatment of highly complex renal tumors (defined as PADUA or RENAL score ≥ 10). A comprehensive search was conducted in four electronic databases (PubMed, Web of Science, Embase, and Cochrane Library) to identify relevant studies published in the English language up to April 2023. The current study employed Review Manager 5.4 and encompassed controlled trials of both MIPN and OPN for the treatment of highly complex renal tumors. This study comprised a total of eight comparative trials involving 1161 patients. MIPN demonstrated a significant reduction in length of hospital stay (weighted mean difference [WMD] - 2.08 days, 95% confidence interval [CI] - 2.48, - 1.68; p < 0.00001), blood loss (WMD - 39.86 mL, 95% CI - 75.32, - 4.39; p = 0.03), transfusion rates (odds ratio [OR] 0.30, 95% CI 0.13, 0.71; p = 0.006), and overall complications (OR 0.46, 95% CI 0.31, 0.70; p = 0.0003). However, there were no significant differences between MIPN and OPN in terms of operative time, warm ischemia time, conversion to radical nephrectomy rates, renal functional and oncologic outcomes. This study reveals that MIPN presents several benefits in comparison to OPN, including decreased length of hospital stay, blood loss, transfusion rates, and complications, while still offering renal functional and oncological outcomes that are comparable to those of OPN in patients with highly complex renal tumors.

Comparison between minimally invasive partial nephrectomy and open partial nephrectomy for complex renal tumors: a systematic review and meta-analysis

BACKGROUND

The present study aimed to conduct a pooled analysis to compare the efficacy and safety of minimally invasive partial nephrectomy (MIPN) with open partial nephrectomy (OPN) in patients with complex renal tumors (defined as PADUA or RENAL score ≥7).

METHODS

The present study followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement, Supplemental Digital Content 1, http://links.lww.com/JS9/A394 . We conducted a systematic search of the PubMed, Embase, Web of Science, and Cochrane Library databases until October 2022. MIPN and OPN-controlled trials for complex renal tumors were included. The primary outcomes were perioperative results, complications, renal function, and oncologic outcomes.

RESULTS

A total of 2405 patients were included in 13 studies. MIPN outperformed OPN in terms of hospital stay [weighted mean difference (WMD) -1.84 days, 95% CI -2.35 to -1.33; P <0.00001], blood loss (WMD -52.42 ml, 95% CI -71.43 to -33.41; P <0.00001), transfusion rates [odds ratio (OR) 0.34, 95% CI 0.17-0.67; P =0.002], major complications (OR 0.59, 95% CI 0.40-0.86; P =0.007) and overall complications (OR 0.43, 95% CI 0.31-0.59; P <0.0001), while operative time, warm ischemia time, conversion to radical nephrectomy rates, estimated glomerular decline, positive surgical margins, local recurrence, overall survival, recurrence-free survival, and cancer-specific survival were not significantly different.

CONCLUSIONS

The present study demonstrated that MIPN was associated with a shorter length of hospital stay, less blood loss, and fewer complications in treating complex renal tumors. MIPN may be considered a better treatment for patients with complex tumors when technically feasible.