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  • Title: Long-term oncological outcomes in robotic versus laparoscopic approach for rectal cancer: A systematic review and meta-analysis.
    Author: Qiu H, Yu D, Ye S, Shan R, Ai J, Shi J.
    Journal: Int J Surg; 2020 Aug; 80():225-230. PubMed ID: 32251720.
    Abstract:
    BACKGROUND: Short-term outcomes of robotic mesorectal excision for rectal cancer resection seem comparable to those of conventional laparoscopic mesorectal excision. However, the long-term oncological outcomes of robot mesorectal excision require further investigation. MATERIALS AND METHODS: The PubMed, EMBASE, Medline, and Cochrane Library databases were searched from the date of database inception to March 31, 2019 for all available trials; the results of robotic and laparoscopic mesorectal excision for rectal cancer surgery were compared. Survival parameters, including overall survival (OS) and disease-free survival (DFS), were independently extracted by two investigators. Hazard ratios (HRs) were calculated using random- or fixed-effects models. The presence of heterogeneity was assessed using Q test, and the extent of heterogeneity was quantified by I2 index. The meta-analysis was performed using Review Manager software, version 5.3. RESULTS: A total of seven studies including 2593 patients (1362 treated by robotic mesorectal excision and 1231 by laparoscopic mesorectal excision) were included. Pooled analyses showed no significant difference in OS (HR = 0.94, 95% confidence interval [CI]: 0.63 to 1.39, P = 0.75) or DFS (HR = 0.93, 95% CI: 0.79 to 1.10, P = 0.85) between the robotic and laparoscopic mesorectal excision for treatment of rectal cancer. CONCLUSION: Regarding long-term survival, robotic mesorectal excision for rectal cancer is comparable to laparoscopic mesorectal excision. More prospective, multicenter randomized trials with longer follow-up periods are needed to determine the long-term outcomes of patients undergoing robotic mesorectal excision.
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