ArticleSurgical endoscopy2019
Efficiency and risks of laparoscopic conversion of omega anastomosis gastric bypass to Roux-en-Y gastric bypass.
Article in Surgical endoscopy, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 4 of them syntheses that pooled it.
What it found
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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.
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.
Who cites it
22 citing papers in PubMed, 4 syntheses or guidelines pooled it.
- Outcomes of One-Anastomosis Gastric Bypass Conversion to Roux-en-Y Gastric Bypass for Severe Obesity: A Systematic Review and Meta-analysis.Obesity surgery · 2024Pooled it
- Surgical Management of Gastro-oesophageal Reflux Disease After One Anastomosis Gastric Bypass - a Systematic Review.Obesity surgery · 2022Pooled it
- Gastroesophageal Reflux Disease as an Indication of Revisional Bariatric Surgery-Indication and Results-a Systematic Review and Metanalysis.Obesity surgery · 2022Pooled it
- Indications, Operative Techniques, and Outcomes for Revisional Operation Following Mini-Gastric Bypass-One Anastomosis Gastric Bypass: a Systematic Review.Obesity surgery · 2020Pooled it
- Standardization of surgical technique of the fundoring method for laparoscopic gastric bypass.Scientific reports · 2025Trial
- Emergency Laparoscopic Reversal of One‑Anastomosis Gastric Bypass Following Early Anastomotic Failure: Video Case Report of Management.Obesity surgery · 2026Article
- One-Anastomosis Gastric Bypass and Hiatal Hernia: Nissen Fundoplication with the Excluded Stomach to Decrease the Risk of Postoperative Gastroesophageal Reflux.Journal of clinical medicine · 2022Article
- Conversion of One Anastomosis Gastric Bypass to Roux-en-Y Gastric Bypass: Results of a Retrospective Multicenter Study.Obesity surgery · 2022Article
- One-Anastomosis Gastric Bypass Revision for Gastroesophageal Reflux Disease: Long Versus Short Biliopancreatic Limb Roux-en-Y Gastric Bypass.Obesity surgery · 2022Article
- Conversion of One-Anastomosis Gastric Bypass (OAGB) to Roux-en-Y Gastric Bypass (RYGB) is Effective in Dealing with Late Complications of OAGB: Experience from a Tertiary Bariatric Center and Literature Review.Journal of metabolic and bariatric surgery · 2021Article
- Areas of Non-Consensus Around One Anastomosis/Mini Gastric Bypass (OAGB/MGB): A Narrative Review.Obesity surgery · 2021Review
- Applying an Anti-reflux Suture in the One Anastomosis Gastric Bypass to Prevent Biliary Reflux: a Long-Term Observational Study.Obesity surgery · 2021Observational
- Omega Loop Gastroileal Bypass (OLGIBP/SAGI) Versus One Anastomosis Gastric Bypass (OAGB): Medium-Term Results.Obesity surgery · 2021Article
- Postoperative Outcomes and Advantages of Hand-Sewn Laparoscopic One-Anastomosis Gastric Bypass: Experience on 805 Patients.Obesity surgery · 2021Article
- Laparoscopic Conversion of One Anastomosis Gastric Bypass to Roux-en-Y Gastric Bypass Due to Penetrated Marginal Ulcer.Obesity surgery · 2020Article
- Anastomotic Gastro-Jejunal Ulcer Perforation Following One Anastomosis Gastric Bypass: Clinical Presentation and Options of Management-Case Series and Review of Literature.Obesity surgery · 2020Review
- Article
- Conversion from mini bypass to laparoscopic Roux en Y gastric bypass in an emergency setting: Case report and literature review.International journal of surgery case reports · 2020Article
- Revisional surgery after one anastomosis/mini gastric bypass: A narrative review.Journal of research in medical sciences : the official journal of Isfahan University of Medical Sciences · 2020Review
- A Rocambolesque Metafiction.Obesity surgery · 2019Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThere is a paucity on literature data related to conversion of Omega anastomosis gastric bypass (OAGB) to Roux-en-Y gastric bypass (RYGB).
methodsThis is a retrospective study. Records of all patients who underwent this conversion were analyzed. Additionally, patients were contacted to answer a questionnaire on their current clinical condition.
resultsTwenty-eight patients underwent laparoscopic conversion between September 2007 and June 2016. Indications were peritonitis in 7 patients (leaks after OAGB in 5, perforated marginal ulcer (MU) and blow-out remnant with concomitant leak in one patient each), anastomotic bleeding in one, bile reflux in 6, recalcitrant MU in 4, afferent loop syndrome in 6, postprandial vomiting in 2 (related to anastomotic stenosis and perianastomotic diverticulum, one each), and malnutrition and hypoglycemia both in 1. Thirty-day mortality was zero, complication rate (Clavien-Dindo grade III or more) 5% ((N = 1/20), abscess) when conversion was elective and 50.0% ((N = 4/8), all persisting leaks) when conversion was urgent. All 4 leaks persisting after conversion were successfully treated by endoscopic stenting, despite stent migration in 2 patients. Follow-up was available in 92.9%, for a mean time of 64.5 ± 30.1 months. Successful symptom relief (Likert score 4 or more) was noted for bile reflux and postprandial vomiting. Additionally, malnutrition was corrected.
conclusionsWhen indicated, conversion of OAGB to RYGB is a safe treatment strategy. In case conversion is performed for leak after OAGB, persisting subclinical leaks are frequent but can be efficiently addressed by endoscopic stenting.
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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.