Evidence map›Paper›PMID 26189734›Full record

ArticleObesity surgery2016

Sleeve Gastrectomy and Roux-en-Y Gastric Bypass Lead to Comparable Changes in Body Composition after Adjustment for Initial Body Mass Index.

Mirko Otto, Mohamad Elrefai, Johannes Krammer, Christel Weiß, Peter Kienle, Till Hasenberg

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in Obesity surgery, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed, 3 pooled it
4.7field-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

31 citing papers in PubMed, 3 syntheses or guidelines pooled it, 52 citations in OpenAlex.

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  19. Nutrient Intake and Deficiency of Patients 1 Year After Bariatric Surgery: Tehran Obesity Treatment Study (TOTS).Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract · 2021
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 2 institutions in 1 country.

Mirko OttoDepartment of Surgery, UMM, University Medical Center Mannheim, Heidelberg University, Theodor-Kutzer-Ufer 1-3, 68135, Mannheim, Germany. mirko.otto@umm.de.ORCID http://orcid.org/0000-0002-8131-7397
Mohamad ElrefaiDepartment of Surgery, UMM, University Medical Center Mannheim, Heidelberg University, Theodor-Kutzer-Ufer 1-3, 68135, Mannheim, Germany.
Johannes KrammerDepartment of Surgery, UMM, University Medical Center Mannheim, Heidelberg University, Theodor-Kutzer-Ufer 1-3, 68135, Mannheim, Germany.
Christel WeißDepartment of Medical Statistics, Biomathematics and Information Processing, Heidelberg University, Mannheim, Germany.
Peter KienleDepartment of Surgery, UMM, University Medical Center Mannheim, Heidelberg University, Theodor-Kutzer-Ufer 1-3, 68135, Mannheim, Germany.
Till HasenbergDepartment of Surgery, Alfried Krupp Krankenhaus, Essen, Germany.
Heidelberg University · DEAlfried Krupp Hospital · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundBariatric surgery is a safe and established treatment option of morbid obesity. Mere percentage of excess weight loss (%EWL) should not be the only goal of treatment.

methodsOne hundred seventy-three obese patients were included in the study. They underwent either Roux-en-Y gastric bypass (RYGB; n = 127, mean body mass index (BMI) 45.7 ± 5.7 kg/m(2)) or sleeve gastrectomy (SG; n = 46, mean BMI 55.9 ± 7.8 kg/m(2)) for weight reduction. Body weight and body composition were assessed periodically by bioelectrical impedance analysis.

resultsAfter 1 year of observation, %EWL was 62.9 ± 18.0 % in RYGB and 52.3 ± 15.0 % in SG (p = 0.0024). Body fat was reduced in both procedures with a slight preference for SG, and lean body mass was better preserved in the RYGB group. Due to significant differences in the initial BMI between the two groups, an analysis of covariance was performed, which demonstrated no significant differences in the %EWL as well as in the other parameters of body composition 1 year after surgery. Using percentage of total weight loss to evaluate the outcomes between the two procedures, no significant difference was found (31.7 ± 8.4 % in RYGB and 30.5 ± 7.6 % in SG patients, p > 0.4).

conclusionsExcess weight loss is highly influenced by the initial BMI. Total weight loss seems to be a better measurement tool abolishing initial weight differences. SG and RYGB do not differ in terms of body composition and weight loss 1 year after surgery.

Indexed as

Body Mass IndexAdultAgedBody CompositionFemaleGastrectomyGastric BypassHumansMaleMiddle AgedObesity, MorbidTreatment OutcomeWeight LossYoung AdultBIABody composition%EWLRoux-en-Y gastric bypassSleeve gastrectomy%TWL

Identifiers

PMID26189734
OpenAlexW1021406000

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.