Evidence map›Paper›PMID 33624210›Full record

ArticleObesity surgery2021

Changes in Anthropometric Measures, Nutritional Indices and Gastrointestinal Symptoms Following One Anastomosis Gastric Bypass (OAGB) Compared with Roux-en-y Gastric Bypass (RYGB).

Nazy Zarshenas, Linda Clare Tapsell, Marijka Batterham, Elizabeth Phillipa Neale, Michael Leonard Talbot

Open access · bronzeAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Obesity surgery, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 4 pooled it
4.4field-weighted citation impact, top 5% 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

24 citing papers in PubMed, 4 syntheses or guidelines pooled it, 31 citations in OpenAlex.

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  19. Investigating the prevalence of nutritional abnormalities in patients prior to and following bariatric surgery.Nutrition & dietetics : the journal of the Dietitians Association of Australia · 2022
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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

5 authors at 2 institutions in 2 countries.

Nazy ZarshenasSchool of Medicine, Faculty of Science Medicine and Health, University of Wollongong, Wollongong, NSW, Australia. nazy.nutrition@gmail.com.ORCID http://orcid.org/0000-0002-5935-7763
Linda Clare TapsellSchool of Medicine, Faculty of Science Medicine and Health, University of Wollongong, Wollongong, NSW, Australia.
Marijka BatterhamSchool of Mathematics and Applied Statistics, Faculty of Engineering and Information Sciences, University of Wollongong, Wollongong, NSW, Australia.
Elizabeth Phillipa NealeSchool of Medicine, Faculty of Science Medicine and Health, University of Wollongong, Wollongong, NSW, Australia.
Michael Leonard TalbotUpper Gastrointestinal Surgery, St George Private Hospital, Kogarah, Sydney, NSW, 2217, Australia.
University of Wollongong · AUSt George Hospital · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeBariatric surgery is an effective treatment for obesity with new procedures emerging. However, despite comparable weight loss and improvements in metabolic outcomes, research on nutritional and gastrointestinal symptoms remains limited. Here we compare clinical data on weight, nutritional disorders and gastrointestinal symptoms of patients before and following one anastomosis gastric bypass (OAGB) and Roux-en-Y gastric Bypass (RYGB). MATERIALS AND

methodsIn this retrospective study, data on anthropometry, nutritional indices, dietary intake and gastrointestinal symptoms were retrieved in cohorts of patients up to 2 years following OAGB and RYGB.

resultsSeventy-three patients had either a RYGB (28) or an OAGB (45), with 71% seeking these as a revisional procedure. Significant and higher weight loss was observed in the OAGB cohort at 1 year (%TWL 33.0 ± 8.5 vs. 26.6 ± 12.4), albeit comparable at 2 years postoperatively (%TWL 29.0 ± 11.1 vs. 34.1 ± 11.2). Disorders such as vitamin D, active B12, folate, homocystein (Hcy) and hyperparathyroidism were present following both surgeries. Levels of vitamin D, ferritin and total protein significantly worsened over time. Gastrointestinal symptoms of diarrhoea, steatorrhoea and reflux were higher in the OAGB cohort while the RYGB cohort reported more dumping syndrome (DS).

conclusionSignificant and similar weight loss results are seen following both OAGB and RYGB. Nutritional disorders were common in both cohorts and increased over time. However, the OAGB patients reported more gastrointestinal side effects, which may contribute to poor quality of life and nutritional consequences. Prospective and longer-term studies investigating the nutritional and gastrointestinal health of patients undergoing OAGB is recommended.

Indexed as

Gastric BypassObesity, MorbidHumansNutrition AssessmentProspective StudiesQuality of LifeRetrospective StudiesGastrointestinal symptomsNutrition, nutritional disordersObesity surgeryOne anastomosis gastric bypassRoux-en-Y gastric bypass

Identifiers

PMID33624210
PMCPMC7901677
OpenAlexW3130659131

What OpenQuestion holds

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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 OpenQuestion graph.