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Obesity Surgery

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01-09-2019 | Obesity | Original Contributions

One Anastomosis Gastric Bypass Versus Roux-en-Y Gastric Bypass for Morbid Obesity: an Updated Meta-Analysis

Authors: Dimitrios E. Magouliotis, Vasiliki S. Tasiopoulou, George Tzovaras

Published in: Obesity Surgery | Issue 9/2019

Abstract

Introduction

We aim to review the available literature on morbidly obese patients treated with one anastomosis gastric bypass (OAGB) or Roux-en-Y gastric bypass (RYGB) in order to compare the clinical outcomes of the two methods.

Methods

A literature search was performed in PubMed, Cochrane Library, and Scopus, in accordance with the PRISMA guidelines.

Results

Sixteen studies were included in the qualitative analysis, and 11 studies were included in the quantitative analysis (meta-analysis), incorporating 12,445 patients. OAGB was associated with shorter mean operative time. The length of hospital stay was comparable between the two procedures. The incidence of leaks, marginal ulcer, dumping, bowel obstruction, revisions, and mortality was similar between the two approaches. The incidence of malnutrition was increased in patients treated with OAGB, while the incidence of internal hernia and bowel obstruction was greater in the RYGB group. In addition, the OAGB was associated with greater % excess weight loss (%EWL) at 1, 2, and 5 years postoperatively. The rate of diabetes remission was greater in the OAGB group. Nonetheless, the rate of hypertension and dyslipidemia remission was similar between OAGB and RYGB.

Conclusion

The present meta-analysis is the best currently available evidence on the topic and demonstrates the superiority of OAGB compared with RYGB, in terms of weight loss and diabetes remission. However, the OAGB was associated with a significantly higher incidence of malnutrition, thus indicating the significant malabsorptive traits of this operation.

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Title: One Anastomosis Gastric Bypass Versus Roux-en-Y Gastric Bypass for Morbid Obesity: an Updated Meta-Analysis
Authors: Dimitrios E. Magouliotis
Vasiliki S. Tasiopoulou
George Tzovaras
Publication date: 01-09-2019
Publisher: Springer US
Keywords: Obesity
Obesity
Malnutrition
Type 2 Diabetes
Published in: Obesity Surgery / Issue 9/2019
Print ISSN: 0960-8923
Electronic ISSN: 1708-0428
DOI: https://doi.org/10.1007/s11695-019-04005-0

At a glance: The ONWARDS insulin icodec trials

Springer Medicine

One Anastomosis Gastric Bypass Versus Roux-en-Y Gastric Bypass for Morbid Obesity: an Updated Meta-Analysis

Abstract

Introduction

Methods

Results

Conclusion

At a glance: The ONWARDS insulin icodec trials

Springer Medicine

Abstract

Introduction

Methods

Results

Conclusion

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