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Canadian Journal of Gastroenterology and Hepatology
Volume 2017 (2017), Article ID 9596342, 7 pages
Review Article

Efficacy of Magnetic Sphincter Augmentation versus Nissen Fundoplication for Gastroesophageal Reflux Disease in Short Term: A Meta-Analysis

1Department of General Surgery, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
2Medicine, University of Melbourne, Melbourne, VIC, Australia

Correspondence should be addressed to Xiu-jun Cai

Received 2 January 2017; Accepted 20 March 2017; Published 30 March 2017

Academic Editor: Grigorios I. Leontiadis

Copyright © 2017 Ming-yu Chen et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Background. The efficacy of Magnetic Sphincter Augmentation (MSA) and its outcomes for Gastroesophageal Reflux Disease (GERD) are uncertain. Therefore, we aimed to summarize and analyze the efficacy of two treatments for GERD. Methods. The meta-analysis search was performed, using four databases. All studies from 2005 to 2016 were included. Pooled effect was calculated using either the fixed or random effects model. Results. A total of 4 trials included 624 patients and aimed to evaluate the differences in proton-pump inhibitor use, complications, and adverse events. MSA had a shorter operative time (MSA and NF: RR = −18.80, 95% CI: −24.57 to −13.04, and ) and length of stay (RR = −14.21, 95% CI: −24.18 to −4.23, and ). Similar proton-pump inhibitor use, complication (), and severe dysphagia for dilation were shown in both groups. Although there is no difference between the MSA and NF in the number of adverse events, the incidence of postoperative gas or bloating (RR = 0.71, 95% CI: 0.54–0.94, and ) showed significantly different results. However, there is no significant difference in ability to belch and ability to vomit. Conclusions. MSA can be recommended as an alternative treatment for GERD according to their short-term studies, especially in main-features of gas-bloating, due to shorter operative time and less complication of gas or bloating.