Evidence map›Paper›PMID 31172454›Full record

SynthesisObesity surgery2019

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

Dimitrios E Magouliotis, Vasiliki S Tasiopoulou, George Tzovaras

Abstract readMeta-AnalysisSystematic Review
PubMed Publisher
In one paragraph

Synthesis in Obesity surgery, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 65 papers, 9 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
65citing papers in PubMed, 9 pooled it
13.7field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

65 citing papers in PubMed, 9 syntheses or guidelines pooled it, 139 citations in OpenAlex.

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5 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors at 2 institutions in 2 countries.

Dimitrios E MagouliotisDepartment of Surgery and Interventional Sciences, UCL, London; Department of Surgery, University Hospital of Larissa, Larissa, Greece.
Vasiliki S TasiopoulouDepartment of Surgery, University of Thessaly, Larissa, Greece.
George TzovarasProfessor of Surgery, Department of Surgery, University of Thessaly, Biopolis, 41110, Larissa, Greece. gtzovaras@med.uth.gr.ORCID 0000-0001-5322-8269
University of Thessaly · GRUniversity Hospital of Larissa · GR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionWe 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.

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

resultsSixteen 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.

conclusionThe 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.

Indexed as

Gastric BypassAdultAgedFemaleHumansLength of StayMaleMiddle AgedObesity, MorbidOperative TimePostoperative ComplicationsWeight LossYoung AdultMeta-analysisMorbid obesityOAGBOne-anastomosis gastric bypassRoux-en-Y gastric bypassRYGB

Identifiers

PMID31172454
OpenAlexW2948760334

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.