ArticleObesity surgery2018
Results of The Comparative Study of 200 Cases: One Anastomosis Gastric Bypass vs Roux-en-Y Gastric Bypass.
Article in Obesity surgery, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 5 of them syntheses that pooled 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.
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.
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Who cites it
16 citing papers in PubMed, 5 syntheses or guidelines pooled it, 25 citations in OpenAlex.
- Primary and Revisional One Anastomosis Gastric Bypass: A Systematic Review and GRADE-Based IFSO Position Statement.Obesity surgery · 2026Pooled it
- Revisional bariatric surgery following sleeve gastrectomy: a meta-analysis comparing Roux-en-Y gastric bypass and one anastomosis gastric bypass.Annals of the Royal College of Surgeons of England · 2025Pooled it
- Comparison of Single Versus Double Anastomosis Bariatric Metabolic Surgery in Obesity: a Systematic Review and Meta-analysis.Obesity surgery · 2023Pooled it
- Efficacy and Safety of One Anastomosis Gastric Bypass Versus Roux-en-Y Gastric Bypass for Obesity: a Meta-analysis and Systematic Review.Obesity surgery · 2023Pooled it
- One Anastomosis Gastric Bypass Versus Roux-en-Y Gastric Bypass for Morbid Obesity: an Updated Meta-Analysis.Obesity surgery · 2019Pooled it
- Postoperative Spirulina Platensis Supplementation Optimizes Body Composition Improvement without Adverse Effects in Women Undergoing Gastric Bypass: a Pilot Study Randomized and Placebo-Controlled.Obesity surgery · 2026Trial
- One anastomosis gastric bypass vs. Roux-en-Y gastric bypass: a 5-year follow-up prospective randomized trial.Langenbeck's archives of surgery · 2021Trial
- One Anastomosis Gastric Bypass/Minigastric Bypass in Patients with BMI < 35 kg/mObesity surgery · 2019Trial
- Long-Term Weight Loss Outcomes of One Anastomosis Gastric Bypass: Assessment of 1971 Patients with 5-9-Year Follow-Up.Obesity surgery · 2025Article
- Comparison of the Long-term Outcomes of RYGB and OAGB as Conversion Procedures After Failed LSG - a Case-Control Study.Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract · 2022Article
- IFSO Update Position Statement on One Anastomosis Gastric Bypass (OAGB).Obesity surgery · 2021Review
- Areas of Non-Consensus Around One Anastomosis/Mini Gastric Bypass (OAGB/MGB): A Narrative Review.Obesity surgery · 2021Review
- One anastomosis gastric bypass vs. Roux-en-Y gastric bypass, remedy for insufficient weight loss and weight regain after failed restrictive bariatric surgery.Obesity surgery · 2020Article
- Short-Term Changes on Body Composition and Bone Mass After One-Anastomosis Gastric Bypass: a Prospective Observational Study.Obesity surgery · 2020Observational
- Laparoscopic mini/one anastomosis gastric bypass: anatomic features, imaging, efficacy and postoperative complications.Updates in surgery · 2020Article
- One Anastomosis Gastric Bypass-Mini-Gastric Bypass (OAGB-MGB) Versus Roux-en-Y Gastric Bypass (RYGB)-a Mid-Term Cohort Study with 612 Patients.Obesity surgery · 2020Article
Corrections and comments
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Authors and funding
6 authors at 4 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
introductionObesity has experienced worldwide increase and surgery has become the treatment that has achieved the best results. Several techniques have been described; the most popular are vertical gastrectomy (GV) and the Roux-en-Y gastric bypass (RYGB). However, mini-gastric bypass/one anastomosis gastric bypass (MGB/OAGB) has gained popularity due to its simplicity and good results.
objectiveTo comparatively evaluate the results of MGB/OAGB with those of RYGB with 1-year follow-up.
methodsThe paper presents a comparative case and control study of 100 patients that underwent MGB/OAGB surgery and another 100 with RYGB surgery, operated between 2008 and 2016. Patients were not submitted to revision surgery and had the following pre-operative variables: age 40.46 ± 12.4 vs. 39.43 ± 10.33 years; sex 64 and 54 women, 36 and 46 men; BMI 44.8 ± 12.06 and 45.29 ± 8.82 kg/m
resultsThe surgical time was 69.01 ± 4.62 (OAGB) vs. 88.98 ± 3.44 min; the time of hospitalization was 2 days, reaching a BMI of 27.7 ± 7.85 and 29 ± 4.52 kg/m
conclusionsThe results show the benefits of both techniques, OAGB being the easiest to perform and with less surgical time.
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