Evidence map›Paper›PMID 41343136›Full record

Trial reportObesity surgery2026

Comparison of Dumping Syndrome After FundoRing and Standard One-anastomosis Gastric Bypass: A Randomized Controlled Trial.

Oral Ospanov, Laura Danyarova, Kassymkhan Sultanov, Galymjan Duysenov, Nurlan Zharov, Bakhtiyar Yelembayev, Shakhizada Ospanova

Abstract readRandomized Controlled TrialComparative Study
PubMed Publisher
In one paragraph

Trial report in Obesity surgery, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

2 citing papers in PubMed.

  1. Trial
  2. 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

7 authors.

Oral OspanovAstana Medical University, Astana, Kazakhstan.
Laura DanyarovaSurgery Center of Professor Oral Ospanov, Astana, Kazakhstan.
Kassymkhan SultanovAstana Medical University, Astana, Kazakhstan. sultanov.k@amu.kz.
Galymjan DuysenovAstana Medical University, Astana, Kazakhstan.
Nurlan ZharovAstana Medical University, Astana, Kazakhstan.
Bakhtiyar YelembayevAstana Medical University, Astana, Kazakhstan.
Shakhizada OspanovaSurgery Center of Professor Oral Ospanov, Astana, Kazakhstan.

Funding

The work was supported by the Ministry of Education and Science of the Republic of Kazakhstan AP23490186
6 · The paper itself

Abstract

backgroundCompared to Roux-en-Y gastric bypass, cases of dumping syndrome (DS) occur significantly less frequently after one anastomosis gastric bypass due to the longer gastric pouch. Recent studies have proposed supplementation of gastric bypass with modified fundoplication using the excluded part of the stomach; however, only a few cases have been reported, as this is often performed in revision surgeries. This study aimed to compare the incidence of early and late DS after "FundoRingOAGB" and standard one anastomosis gastric bypass by assessing the OGTT, insulin levels, and Sigstad scores as outcome measures. MATERIALS AND

methodsThis was a single-center, prospective, interventional, open-label (no masking) RCT (FundoRing Trial) with a 1-year follow-up period. The endpoints were oral glucose tolerance tests (OGTT), insulin levels, Sigstad scores, early and late DS symptoms.

resultsOverall,1000 patients (n=500 FundoRing One-anastomosis gastric bypass [f-OAGB] vs. n=500 standard OAGB [s-OAGB]) with complete follow-up data were included in the study. No leaks, bleeding, or mortality occurred in either group. At 1-year, BMI in the f-OAGB group was 27.0 ± 0.75 vs. 29.0 ± 0.66 s-OAGB group (p=0.04). DS symptoms were observed in 98 (19.6%) and 175 (35%) patients in the f-OAGB and s-OAGB groups, respectively (P =0.001). Sigstad's scores for the f-OAGB and s-OAGB groups were 2.8 ± 0.9 and 5.1 ± 1.3, respectively (p=0.001).

conclusionModified fundoplication of the OAGB-excluded stomach significantly decreased early and late DS symptoms more effectively than standard OAGB at 1 year.

Indexed as

Dumping SyndromeFundoplicationGastric BypassObesity, MorbidAdultFemaleFollow-Up StudiesGlucose Tolerance TestHumansMaleMiddle AgedPostoperative ComplicationsProspective StudiesTreatment OutcomeBariatric surgeryEarly and late dumping syndromeFundoplicationFundoRingOAGBOne-anastomosis gastric bypassOral glucose tolerance testSigstad score

Identifiers

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Registered trials

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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.