Comparison of clinical efficacy between robotic and laparoscopic low anterior resection for rectal cancer:a Meta analysis / 重庆医学

ABSTRACT

Objective To compare the clinical efficacy of robotic low anterior resection (R-LAR) and laparoscopic low anterior resection(L-LAR) for rectal cancer.Methods The case-control studies for comparing the clinical efficacy of R-LAR and LLAR for rectal cancer were retrieved from databases,including PubMed,OVID,Springer,Wanfang and VIP,till June 2016.The studies were selected in accordance with inclusion and exclusion critera,and the data were extracted and evaluated by two researchers.The RevManS.3 software was used for Meta-analysis.Results A total of 7 studies including 1 126 patients with rectal cancer were included,592 cases in the R-LAR group and 534 cases in the L-LAR group.Compared with the L-LAR group,in the R-LAR group the operation time was longer (MD=33.84,95％ CI4.25-63.43,P =0.03),the conversion rate was lower (OR =0.10,95％CI0.03-0.36,P=0.000 5),and more lymph nodes were dissected (MD=1.24,95％CI0.31-2.17,P=0.009).No statistically significant difference was found in length of hospital stay,intraoperative blood loss,distance from distal margin to tumor and incidence rate of postoperative anastomotic leakage between the two groups (P ＞ 0.05).Conclusion Compared with L-LAR,RLAR is characterized by longer operation time,lower conversion rate and more thoroughly removing lymph nodes.And the length of hospital stay,intraoperative blood loss,distance from distal margin to tumor and incidence rate of postoperative anastomotic leakage of R-LAR are similar to those of L-LAR.