Evidence map›Paper›PMID 21818647›Full record

Trial reportObesity surgery2011

Randomized clinical trial of laparoscopic Roux-en-Y gastric bypass versus laparoscopic sleeve gastrectomy for the management of patients with BMI < 50 kg/m2.

Ioannis Kehagias, Stavros N Karamanakos, Marianna Argentou, Fotis Kalfarentzos

Abstract readComparative StudyRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report in Obesity surgery, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 154 papers, 32 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
154citing papers in PubMed, 32 pooled it
32.4field-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.

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

154 citing papers in PubMed, 32 syntheses or guidelines pooled it, 350 citations in OpenAlex.

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94 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

4 authors at 1 institution in 1 country.

Ioannis KehagiasDepartment of Surgery, School of Medicine, University of Patras, Patras, Greece.
Stavros N Karamanakos
Marianna Argentou
Fotis Kalfarentzos
University of Patras · GR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundLaparoscopic Roux-en-Y gastric bypass (LRYGB) is currently the gold standard bariatric procedure for the treatment of morbid obesity. Laparoscopic sleeve gastrectomy (LSG) is a relatively innovative procedure which has been increasingly applied lately as a sole bariatric procedure. A randomized trial was conducted in a Greek population to evaluate perioperative safety and 3-years results.

methodsSixty patients with body mass index (BMI) ≤ 50 Kg/m(2) were randomized to LRYGB or LSG. Patients were monitored for 3 years postoperatively and throughout the study period weight loss, in terms of percent excess weight loss (%EWL), early and late complications, improvement of obesity related comorbidities and nutritional deficiencies were compared between groups.

resultsThere was no death in either group and there was no significant difference in early (10% after LRYGB and 13% after LSG, P > 0.05) and late morbidity (10% in each group). Weight loss was significantly better after LSG in the first years of the study and at 3 years %EWL reached 62% after LRYGB and 68% after LSG (p = 0.13). There was no significant difference in the overall improvement of comorbidities. Nutritional deficiencies occurred at the same rate in the two groups except to vitamin B(12) deficiency which was more common after LRYGB (P = 0.05).

conclusionLSG and LRYGB are equally safe and effective in the amelioration of comorbidities, while LSG is associated with fewer postoperative metabolic deficiencies, without the need of supplementation. Furthermore, LSG is a promising bariatric procedure, equally effective to LRYGB at 3 years follow up on weight reduction.

Indexed as

Body Mass IndexLaparoscopyAdultDouble-Blind MethodFemaleGastrectomyGastric BypassHumansMaleObesity, Morbid

Identifiers

PMID21818647
OpenAlexW2029346223

What OpenQuestion 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 OpenQuestion graph.