Evidence map›Paper›PMID 40285961›Full record

ArticleObesity surgery2025

Long-Term Results of Linear Versus Circular Stapled Gastrojejunostomy in Gastric Bypass Surgery: A Propensity Score-Adjusted Analysis of Weight Loss and Morbidity.

Mathias Schmid, Patrick Folie, Rene Warschkow, Thomas Steffen

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in Obesity surgery, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. 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

4 authors.

Mathias SchmidHOCH Health Ostschweiz, Kantonsspital St. Gallen, St. Gallen, Switzerland. mathias.schmid@h-och.ch.
Patrick FolieHOCH Health Ostschweiz, Kantonsspital St. Gallen, St. Gallen, Switzerland.
Rene WarschkowHOCH Health Ostschweiz, Kantonsspital St. Gallen, St. Gallen, Switzerland.
Thomas SteffenHOCH Health Ostschweiz, Kantonsspital St. Gallen, St. Gallen, Switzerland.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDifferent techniques are used to create a gastrojejunal anastomosis (GJ) in laparoscopic Roux-en-Y gastric bypass (LRYGB). This study compares long-term weight loss and technique-related morbidity between circular (CSA) GJ and linear (LSA) stapled GJ.

methodsThe clinical data of LRYGB patients prospectively registered in a database were retrospectively analyzed. The primary endpoints were long-term excess weight loss (EWL) and excess BMI loss (EBL). The risk factors were adjusted via propensity score matching (PSM), and the long-term morbidity rates of the procedures were compared as time-to-event-data using hazard ratios (HR).

resultsTwo hundred forty-three patients underwent surgery between 2012 and 2014 (CSA n = 109; LSA n = 134). No significant differences in weight development were shown during 6 years postoperatively between CSA and LSA. A mixed effects regression analysis before and after PSM revealed that CSA performed better than LSA after 6 years (potentially biased by low follow-up rates for this period). CSA was associated with higher overall morbidity (LSA 26.1% vs. CSA 38.8%, HR = 1.58, p = 0.048), incisional hernia (LSA 0.7% vs. CSA 6.4%, HR = 10.0, p = 0.006), and GJ stenosis rates (LSA 0% vs. CSA 17.4%, p < 0.001). LSA was associated with marginal ulcers (LSA 8.2% vs. CSA 0.9%, HR = 5.5, p = 0.012).

conclusionsMarginal ulcers have been linked to LSA, while CSA has been associated with higher rates of overall morbidity, stenosis of the GJ, and incisional hernia. No difference terms of weight loss were observed between the CSA and LSA groups during the initial six postoperative years. After 6 years, CSA may offer benefits in terms of sustained weight loss; however, the clinical relevance of these differences appears minimal.

Indexed as

Gastric BypassLaparoscopyObesity, MorbidPostoperative ComplicationsSurgical StaplingWeight LossAdultFemaleHumansMaleMiddle AgedPropensity ScoreRetrospective StudiesRisk FactorsTreatment OutcomeGastric bypassIncisional herniaMarginal ulcerRoux-en-YWeight loss

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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.