Evidence mapPaperPMID 41364417Full record

SynthesisObesity surgery2026

Primary and Revisional One Anastomosis Gastric Bypass: A Systematic Review and GRADE-Based IFSO Position Statement.

Maurizio De Luca, Amanda Belluzzi, Matteo Monami, Luigi Angrisani, Miguel Angel Carbajo, Nicola Di Lorenzo, Jacques Himpens, Mohammad Kermansaravi, Giovanni Merola, Giuseppe Navarra and 5 more

Abstract readSystematic ReviewReview
PubMed Publisher
In one paragraph

Synthesis in Obesity surgery, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
field-weighted citation impact
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

1 citing paper in PubMed.

  1. Article
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

15 authors.

Maurizio De LucaDepartment of Emergency, General and Bariatric Surgery, Rovigo Hospital, Rovigo, Italy, Rovigo, Italy. maurizio.deluca@aulss5.veneto.it.
Amanda BelluzziDepartment of Emergency, General and Bariatric Surgery, Rovigo Hospital, Rovigo, Italy, Rovigo, Italy.
Matteo MonamiCareggi Teaching Hospital and University of Florence, Florence, Italy., Florence, Italy.
Luigi AngrisaniUniversity of Naples Federico II, Naples, Italy.
Miguel Angel CarbajoCenter of Excellence for the Study and Treatment of Obesity and Diabetes, Valladolid, Spain, Valladolid, Spain.
Nicola Di LorenzoSapienza University, Rome, Italy.
Jacques HimpensCentre Hospitalier Universitaire de Saint-Pierre, Brussels, Belgium.
Mohammad KermansaraviIran University of Medical Sciences, Teheran, Islamic Republic of Iran.
Giovanni MerolaSan Giovanni Di Dio Hospital, Frattamaggiore, Naples, Italy.
Giuseppe NavarraUniversity of Messina, G. Martino University Hospital, Messina, Italy.
Abdelrahman NimeriHarvard Medical School, Boston, United States.
Tarissa B Z PetryThe Centre for Obesity and Diabetes, Hospital Alemao Oswaldo Cruz, São Paulo, Montebelluna, Brazil.
Giacomo PiattoHospital of Montebelluna, Montebelluna, Italy.
Scott ShikoraHarvard Medical School, Boston, United States.
Ricardo V CohenThe Centre for Obesity and Diabetes, Hospital Alemao Oswaldo Cruz, São Paulo, Montebelluna, Brazil.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Obesity is a chronic, systemic disease that alters the function of tissues, organs, and overall health, requiring prompt recognition and treatment by qualified professionals. IFSO recognizes the need to provide a new methodology for developing IFSO position statements. All new official position statements should be developed using a GRADE-based methodology, systematically reviewing all available evidence relevant to Metabolic and Bariatric Surgery (MBS). The present Position Statement was developed using results coming from a systematic review and meta-analysis, reported herein, following the criteria of the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement. Fourteen Randomized controlled trials (RCTs) were included in this meta-analysis, 13 and 1 of them assessing outcomes of OAGB in primary and revisional setting respectively, with a total of 1288 patients. In the short term, OAGB exhibited a significantly higher excess weight loss percentage (EWL%) compared to RYGB. Regarding weight loss and metabolic outcomes, OAGB was not reported to be inferior in terms of weight loss and T2DM resolution when compared to RYGB. Further RCTs comparing OAGB to other MBS procedures are needed to reach a definitive recommendation regarding OAGB in revisional surgery setting. Regarding safety profile, no statistically significant differences between OAGB and other MBS were reported. This position statement was issued by the IFSO OAGB task force and approved by IFSO Scientific Committee aims to provide evidence on the effectiveness of One Anastomosis Gastric Bypass in both primary and revisional settings.

Indexed as

Gastric BypassObesity, MorbidHumansRandomized Controlled Trials as TopicReoperationTreatment OutcomeWeight LossGRADE methodologyIFSO Position StatementMeta-AnalysesMetabolic Bariatric SurgeryOAGBPRISMASystematic ReviewUpdate

Identifiers

PMID41364417

What Socratic 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 Socratic graph.