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Comparative Study
Journal Article
Meta-Analysis
Review
The safety and effectiveness of robot-assisted versus laparoscopic TME in patients with rectal cancer: A meta-analysis and systematic review.
Medicine (Baltimore) 2017 July
BACKGROUND: The aim of this study was to assess the safety and effectiveness of robotic-assisted versus laparoscopic total mesorectal excision (TME) in patients with rectal cancer.
METHODS: We systematically searched PubMed, EMBASE, Cochrane library, Web of science, and Chinese Biomedical Literature Database up to July 2016 to identify case-controlled studies that compared robotic TME (RTME) with laparoscopic TME (LTME) for rectal cancer. GRADE was used to interpret the primary outcomes of this meta-analysis.
RESULTS: We included 17 case-control studies (3601 participants: 1726 underwent RTME and 1875 LTME for rectal cancer) that compared RTME with LTME for rectal cancer. We found no statistically significant differences between techniques for local recurrence [odds ratio (OR) = 0.68, P = .216] and overall survival at 3 years (OR = 0.71, P = 1.140), complications (OR = 1.02, P = .883), positive circumferential resection margin (PCRM) (OR = 0.80, P = .256), the first passing flatus [weighted mean difference (WMD) = -0.11, P = .130], reoperation (OR = 0.66, P = .080), estimated blood loss (EBL) (WMD = -12.45, P = .500), and length of stay in hospital (LOS) (WMD = -0.69, P = .089). Compared with LTME, RTME was associated with lower rate of conversion (OR = 0.35, P < .001), urinary retention (OR = 0.41, P = .025), and longer operative time (WMD = 57.43, P < .001). The overall quality of evidence was poor in all outcomes.
CONCLUSION: RTME in patients with rectal cancer was associated with a lower rate of conversion and less incidence of urinary retention. Generally, operative time in RTME was significantly longer than in LTME. The long-term oncological and function outcomes of RTME seem to be equivalent with LTME. Therefore, analysis of current studies to date did not indicate a major benefit of RTME over LTME.
METHODS: We systematically searched PubMed, EMBASE, Cochrane library, Web of science, and Chinese Biomedical Literature Database up to July 2016 to identify case-controlled studies that compared robotic TME (RTME) with laparoscopic TME (LTME) for rectal cancer. GRADE was used to interpret the primary outcomes of this meta-analysis.
RESULTS: We included 17 case-control studies (3601 participants: 1726 underwent RTME and 1875 LTME for rectal cancer) that compared RTME with LTME for rectal cancer. We found no statistically significant differences between techniques for local recurrence [odds ratio (OR) = 0.68, P = .216] and overall survival at 3 years (OR = 0.71, P = 1.140), complications (OR = 1.02, P = .883), positive circumferential resection margin (PCRM) (OR = 0.80, P = .256), the first passing flatus [weighted mean difference (WMD) = -0.11, P = .130], reoperation (OR = 0.66, P = .080), estimated blood loss (EBL) (WMD = -12.45, P = .500), and length of stay in hospital (LOS) (WMD = -0.69, P = .089). Compared with LTME, RTME was associated with lower rate of conversion (OR = 0.35, P < .001), urinary retention (OR = 0.41, P = .025), and longer operative time (WMD = 57.43, P < .001). The overall quality of evidence was poor in all outcomes.
CONCLUSION: RTME in patients with rectal cancer was associated with a lower rate of conversion and less incidence of urinary retention. Generally, operative time in RTME was significantly longer than in LTME. The long-term oncological and function outcomes of RTME seem to be equivalent with LTME. Therefore, analysis of current studies to date did not indicate a major benefit of RTME over LTME.
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