Evidence map›Paper›PMID 32424625›Full record

ArticleSurgical endoscopy2021

Marginal ulceration following Roux-en-Y gastric bypass: risk factors for ulcer development, recurrence and need for revisional surgery.

Adam Di Palma, Benjamin Liu, Azusa Maeda, Mehran Anvari, Timothy Jackson, Allan Okrainec

Registry-linked trialAbstract read
PubMed Publisher
In one paragraph

Article in Surgical endoscopy, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05799105 (OPEN Versus InTact Capsule Proton Pump Inhibitors for the Treatment of Marginal Ulcers After Bariatric Surgery), which is not on this map. Cited by 42 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed, 6 pooled it
7.1field-weighted citation impact, top 2% 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.

NCT05799105 phase4recruitingnot on this mapstarted 2023, after this paper: background citation

OPEN Versus InTact Capsule Proton Pump Inhibitors for the Treatment of Marginal Ulcers After Bariatric Surgery

TypeinterventionalSponsorStephen FirkinsRan2023 to 2027Enrolled122ConditionsMarginal UlcerArmsOmeprazole 40 milligrams
3 · Its place in the literature

Who cites it

42 citing papers in PubMed, 6 syntheses or guidelines pooled it, 71 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Pooled it
  5. Predictors of marginal ulcer after gastric bypass: a systematic review and meta-analysis.Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract · 2023
    Pooled it
  6. Guideline
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Observational
  19. Key techniques of laparoscopic RouxZhong nan da xue xue bao. Yi xue ban = Journal of Central South University. Medical sciences · 2025
    Review
  20. 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

6 authors at 2 institutions in 1 country.

Adam Di PalmaDivision of General Surgery, University Health Network, Toronto, ON, Canada.
Benjamin LiuDivision of General Surgery, University Health Network, Toronto, ON, Canada.
Azusa MaedaDivision of General Surgery, University Health Network, Toronto, ON, Canada.
Mehran AnvariDivision of General Surgery, St. Joseph's Healthcare, Hamilton, ON, Canada.
Timothy JacksonDivision of General Surgery, University Health Network, Toronto, ON, Canada.
Allan OkrainecDivision of General Surgery, University Health Network, Toronto, ON, Canada. Allan.Okrainec@uhn.ca.ORCID 0000-0003-1117-958X
University Health Network · CASt. Joseph’s Healthcare Hamilton · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMarginal ulcer formation is a known complication following RYGB. While most respond to medical therapy, many patients have recurrent or chronic MU. Although non-steroidal anti-inflammatory drug (NSAID) use, smoking and Helicobacter pylori infection are known risk factors of MU, little is known about what increases the likelihood of developing recalcitrant ulcers. The objective of this study is to identify risk factors for marginal ulcer (MU) formation, including recalcitrant ulcers requiring surgical revision, and to define the incidence and outcomes of revisional surgery.

methodsAll patients who underwent RYGB between 2011 and 2017 at a high-volume academic center were included. Patients with a postoperative diagnosis of MU were identified from the institution's bariatric database. Patient characteristics, operative data and surgical outcomes were analyzed using data collected in the Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program and the Ontario Bariatric Registry.

resultsA total of 2830 RYGB were performed during the study period. The incidence of MU was 6.9% with 1% of patients requiring revisional surgery for a recalcitrant ulcer. Patients with a history of smoking (HR 5.03), immunosuppression (HR 4.60) and preoperative NSAID use (HR 3.11) were significantly more likely to develop a MU requiring surgical revision. Patients undergoing revision reported resolution of their symptoms in only 36% of cases with 57% developing a recurrent ulcer.

conclusionPatients with a history of smoking and use of immunosuppressive medication were at significantly higher risk of developing MU that failed medical therapy. Additional evidence is needed to inform perioperative management of bariatric patients.

Indexed as

AdultAnti-Inflammatory Agents, Non-SteroidalFemaleGastric BypassHumansMaleMiddle AgedPeptic UlcerPostoperative ComplicationsRecurrenceReoperationRisk FactorsStomach UlcerTreatment OutcomeAnti-Inflammatory Agents, Non-SteroidalBariatric surgeryChronic marginal ulcerMarginal ulcerRevisional surgeryRoux-en-Y gastric bypassSurgical complications

Identifiers

PMID32424625
OpenAlexW3027328159

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.