Evidence map›Paper›PMID 32215809›Full record

ArticleObesity surgery2020

Internal Herniation and Weight Loss in Patients after Roux-en-Y Gastric Bypass.

M M G van Berckel, J C Ederveen, J Nederend, S W Nienhuijs

Abstract read
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In one paragraph

Article in Obesity surgery, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
1.2field-weighted citation impact, top 21% 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

4 citing papers in PubMed, 9 citations in OpenAlex.

  1. Trial
  2. [Imaging diagnostics for diseases of the small bowel].Radiologie (Heidelberg, Germany) · 2026
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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

4 authors at 2 institutions in 1 country.

M M G van BerckelDepartment of Surgery, Catharina Hospital, Eindhoven, The Netherlands. marijn.v.berckel@catharinaziekenhuis.nl.
J C EderveenDepartment of Radiology, Maastricht University Hospital, Maastricht, The Netherlands.
J NederendDepartment of Radiology, Catharina Hospital, Eindhoven, The Netherlands.
S W NienhuijsDepartment of Surgery, Catharina Hospital, Eindhoven, The Netherlands.
Catharina Ziekenhuis · NLMaastricht University · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeWeight loss is one of the desired outcomes after a gastric bypass, in order to reduce co-morbidity, and even mortality. However, weight loss might contribute to a serious complication: internal herniation (IH). Pre-operative diagnosis of IH is demanding. This study was conducted to investigate if percentage total weight loss (%TWL) is clinically usable in recognizing patients with IH. MATERIALS AND

methodsPatients who had undergone a gastric bypass between 2011 and 2014 were included retrospectively if a CT scan or reoperation was performed for suspected IH between 2011 and 2016. Differences in %TWL were calculated in patients with IH and without (NO-IH). A sub analysis was done in patients with complaints. A multivariate analysis to identify risk factors for IH was performed.

resultsOut of 1007 patients, 31 patients were diagnosed with an IH (3.1%) after a median time of 16.5 months (range 6.5-46.1). The %TWL was higher in patients with an IH (34.2% ± 12.7) vs. NO-IH (30.8% ± 9.6). This result was also seen in patients presenting with symptoms (IH 34.2% ± 12.7 vs. NO-IH 27.0% ± 14.8). If %TWL is above 30%, IH is significantly more diagnosed in patients presenting with symptoms. A multivariate logistic model for IH in patients presenting with symptoms identified both ≥ 30%TWL (adjusted OR 3.1, 95% CI 1.1-8.8, p = 0.036) and abdominal cramping (adjusted OR 3.2, 95% CI 1.2-8.5, p = 0.0021) as risk factors.

conclusionOur study showed significant more %TWL in patients with an IH. Both ≥ 30%TWL and cramping abdominal pain result in a threefold higher risk of presence of IH.

Indexed as

Gastric BypassLaparoscopyObesity, MorbidHumansPostoperative ComplicationsRetrospective StudiesWeight LossBariatric surgeryComplicationGastric bypassInternal herniationPercentage total weight lossTotal weight loss%TWLWeight loss

Identifiers

PMID32215809
OpenAlexW3013370936

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.