Safety and efficacy of endoscopic sleeve gastroplasty worldwide for treatment of obesity: a systematic review and meta-analysis

Shailendra Singh, Diogo Turiani Hourneaux de Moura, Ahmad Khan, Mohammad Bilal, Michele B Ryan, Christopher C Thompson, Shailendra Singh, Diogo Turiani Hourneaux de Moura, Ahmad Khan, Mohammad Bilal, Michele B Ryan, Christopher C Thompson

Abstract

Background: Endoscopic sleeve gastroplasty (ESG) has gained momentum as a promising, minimally invasive bariatric therapy worldwide.

Objective: We performed the first comprehensive systematic review and meta-analysis of studies to evaluate the efficacy, safety, and procedural technique of ESG.

Methods: Bibliographic databases were systematically searched for studies assessing patients who underwent ESG for the treatment of obesity. Studies were included if they reported percent total weight loss or percent excess weight loss and the incidence of serious adverse events. Studies with <15 patients, follow-up period <6 months, and overlapping patients were excluded.

Results: Eight observational studies with 1859 patients were included. Pooled mean percent total weight loss at 6, 12, and 24 months was 14.86 (95% confidence interval [CI]: 13.83-15.90), 16.43 (95%CI: 15.23-17.63), and 20.01 (95%CI: 16.92-23.11), respectively. Pooled mean percent excess weight loss at 6, 12, and 24 months was 55.75 (95%CI: 50.61-60.89), 61.84 (95%CI: 54.75-68.93), and 60.40 (95%CI: 48.88-71.92), respectively. The pooled incidence of serious adverse events was 2.26% (95%CI 1.25-4.03) and no mortality was reported. Gastrointestinal bleeding and perigastric fluid collection were the most common reported serious adverse events; however, the pooled incidence of both was <1%. Variations in procedural technique were seen, but the full-thickness nature of suturing was reported in all studies. A layer of reinforcement sutures was performed in the majority of studies (n = 6). Limitations include the lack of controlled studies, long-term follow-up data, and standardization of technique.

Conclusion: ESG, a minimally invasive bariatric therapy, is reproducible among centers worldwide with effective weight loss and favorable safety profile outcomes. Controlled studies would be valuable to further corroborate these findings.

Keywords: Bariatric endoscopy; EBT; ESG; Endoscopic bariatric therapy; Endoscopic sleeve gastroplasty; Endoscopic suturing; Gastroplasty; Obesity; Obesity endolumenal surgery; Overstitch; Sleeve gastrectomy.

Conflict of interest statement

Disclosures S.S., D.T.H.M., A.K., M.B., M.B.R. have nothing to disclose. C.C.T. is a consultant for Apollo Endosurgery, USGI medical, Fractyl, Boston Scientific, Medtronic, Olympus, and GI dynamics.

Copyright © 2019 American Society for Bariatric Surgery. Published by Elsevier Inc. All rights reserved.

Figures

Figure 1:
Figure 1:
PRISMA flow diagram of the search strategy and study selection.
Figure 2
Figure 2
a: Forest plots showing Percent Total Weight Loss (%TWL) achieved with Endoscopic Sleeve Gastroplasty (ESG). b: Forest plots showing Percent Excess Weight Loss (%EWL) achieved with Endoscopic Sleeve Gastroplasty (ESG).
Figure 2
Figure 2
a: Forest plots showing Percent Total Weight Loss (%TWL) achieved with Endoscopic Sleeve Gastroplasty (ESG). b: Forest plots showing Percent Excess Weight Loss (%EWL) achieved with Endoscopic Sleeve Gastroplasty (ESG).
Figure 3:
Figure 3:
Forest plot evaluating the pooled incidence of serious adverse events.

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Source: PubMed

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