Evidence map›Paper›PMID 22403000›Full record

ArticleObesity surgery2012

Pre- and postoperative nutritional deficiencies in obese patients undergoing laparoscopic sleeve gastrectomy.

Antje Damms-Machado, Asja Friedrich, Klaus Michael Kramer, Katrin Stingel, Tobias Meile, Markus A Küper, Alfred Königsrainer, Stephan C Bischoff

Registry-linked trialAbstract read
PubMed Publisher
In one paragraph

Article in Obesity surgery, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02817256 (A Randomized Controlled Trial of Vitamin and Mineral Supplementation Post Bariatric Surgery), which is not on this map. Cited by 96 papers, 9 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
96citing papers in PubMed, 9 pooled it
18.8field-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.

NCT02817256 naunknown statusnot on this mapstarted 2016, after this paper: background citation

A Randomized Controlled Trial of Vitamin and Mineral Supplementation Post Bariatric Surgery: Sleeve Gastrectomy

TypeinterventionalSponsorUnited Arab Emirates UniversityRan2016 to 2018Enrolled105ConditionsComplications of Other Bariatric ProcedureArmsVitamins and Minerals
3 · Its place in the literature

Who cites it

96 citing papers in PubMed, 9 syntheses or guidelines pooled it, 225 citations in OpenAlex.

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  6. Iron, Vitamin BObesity surgery · 2020 · on this map
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36 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

8 authors at 3 institutions in 1 country.

Antje Damms-MachadoDepartment of Nutritional Medicine, University of Hohenheim, Fruwirthstr. 12, 70593, Stuttgart, Germany.
Asja Friedrich
Klaus Michael Kramer
Katrin Stingel
Tobias Meile
Markus A Küper
Alfred Königsrainer
Stephan C Bischoff
University of Hohenheim · DEUniversity of Tübingen · DEMünchen Klinik Bogenhausen · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundLaparoscopic sleeve gastrectomy (LSG) has been identified as an innovative surgical approach for the treatment of obesity and is increasingly applied worldwide. However, data on outcome of LSG regarding nutrient deficiencies, protein status, and body composition are scarce.

methodsObese subjects (54; f:m = 4:1) scheduled for LSG were included in this study. Micronutrient analysis, protein status assessment, and bioimpedance measures were performed before and 1, 3, 6, and 12 months after LSG.

resultsIn 51% of the subjects, at least one micronutrient deficiency was found prior to surgery. Baseline concentrations were below normal for 25-OH vitamin D (27%), iron (29%), vitamin B6 (11%), vitamin B12 (9%), folate (6%), and potassium (7%). Frequencies of deficiencies for vitamin B12, folate, iron, and vitamin B6 tended to increase following LSG within the first year after intervention. Also, parameters of protein status (albumin, transferrin, cholinesterase, and total protein) decreased. After surgery, bioimpedance measures indicated a reduction of total body fat, but also of body cell mass.

conclusionsPreoperative micronutrient deficiencies were common in morbid obese individuals scheduled for LSG. LSG had a modest effect on micronutrient status by further reducing iron, vitamin B12, vitamin B6, and folate within the first year after intervention. Our data suggest that especially obese patients with preoperative deficits require control and supplementation of micronutrients and protein in the postoperative period.

Indexed as

Dietary SupplementsAdultAvitaminosisBody CompositionBody Mass IndexFemaleFollow-Up StudiesGastroplastyHumansLaparoscopyMaleMalnutritionMicronutrientsObesity, MorbidPostoperative PeriodPreoperative PeriodMicronutrients

Identifiers

PMID22403000
OpenAlexW1966826192

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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.