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Systematic Review

Outcomes of single anastomosis duodeno ileal bypass and single anastomosis stomach ileal bypass for type II diabetes: a systematic review

, , , , , , & ORCID Icon show all
Pages 337-346 | Received 24 Dec 2022, Accepted 24 May 2023, Published online: 05 Jun 2023
 

ABSTRACT

Introduction

Bariatric surgery has demonstrated long-term effectiveness in inducing weight loss and improving metabolic parameters for obesity. Single anastomosis duodeno-ileal (SADI) bypass and single anastomosis sleeve-ileal (SASI) bypass have both emerged as new promising bariatric procedures. In this paper, we review the existing literature and compare the outcomes of SADI and SASI bypass procedures in regard to weight loss, complication rate, and improvement of type II diabetes (T2DM). This has not yet been done in the preexisting literature.

Areas covered

We conducted a systematic literature search of electronic databases focusing on weight loss outcomes, rate of complications and remission, or improvement of T2DM and other obesity-related comorbidities. Seventeen studies on SADI and nine studies on SASI were included. Both are similar in terms of surgical technique and have demonstrated fewer complications when compared to other bariatric procedures. Mean preoperative BMI was similar in both study groups: 46.4 kg/m2 in SADI and 48.8 kg/m2 in SASI. Mean %EWL at 12 months in the SADI group was 74.1% compared to 77.4% in the SASI group. Preoperative severity of T2DM appeared to be higher in the SASI patient group, with a higher preoperative HbA1c and fasting blood glucose levels. T2DM resolution was achieved in a significant proportion of both SADI and SASI patient populations (78.5% in SADI and 89.0% in SASI). Complication rates were comparable for both procedures.

Expert opinion

Both SADI and SASI are effective in inducing weight loss at 12 months, with a low rate of major complications and mortality. From the studies included in this review, the SASI procedure had a higher impact on T2DM resolution compared to SADI.

Declaration of interest

M Gagner is a cofounder of GT Metabolics, a company invested in magnetic surgery including its involvement in SASI and SADI procedures. M Gagner has numerous patents related to magnetic technology and its application in SADI and SASI procedures.

The authors have no other relevant affiliations or financial involvement with any organization or entity with a financial interest in or financial conflict with the subject matter or materials discussed in the manuscript apart from those disclosed.

Reviewer disclosures

Peer reviewers on this manuscript have no relevant financial or other relationships to disclose.

Additional information

Funding

This paper received no funding.

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