BACKGROUND Laparoscopic Roux-en-Y gastric bypass (LRYGB) and laparoscopic sleeve gastrectomy (LSG) are two representative bariatric surgeries. This study aimed to compare the effects of the LSG and LRYGB based on high-quality analysis and massive amount of data. METHODS For this study databases of PubMed, Web of Science, EBSCO, Medline, and Cochrane Library were searched for articles published until January 2019 comparing the outcomes of LSG and LRYGB. RESULTS This study included 28 articles. Overall, 9038 patients (4597, LSG group; 4441, LRYGB group) were included. The remission rate of type 2 diabetes mellitus (T2DM) in the LRYGB group was superior to that in the LSG group at the 3-years follow-up. Five-year follow-up results showed that LRYGB had an advantage over LSG for the percentage of excess weight loss and remission of T2DM, hypertension, dyslipidemia, and abnormally low-density lipoprotein. CONCLUSIONS In terms of the long-term effects of bariatric surgery, the effect of LRYGB was better than of LSG.

中文翻译：

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对腹腔镜袖胃切除术和腹腔镜Roux-en-Y胃旁路术的中长期疗效进行荟萃分析。

背景技术腹腔镜Roux-en-Y胃旁路术（LRYGB）和腹腔镜袖胃切除术（LSG）是两个代表性的减肥手术。这项研究旨在根据高质量分析和大量数据比较LSG和LRYGB的影响。方法在本研究中，从PubMed，Web of Science，EBSCO，Medline和Cochrane图书馆的数据库中搜索直到2019年1月为止发表的文章，比较LSG和LRYGB的结果。结果本研究包括28篇文章。总共包括9038例患者（4597，LSG组； 4441，LRYGB组）。在3年的随访中，LRYGB组的2型糖尿病（T2DM）缓解率优于LSG组。五年的跟踪结果显示，LRYGB的体重减轻和T2DM缓解率优于LSG，高血压，血脂异常和异常低密度脂蛋白。结论就减肥手术的长期效果而言，LRYGB的疗效优于LSG。