SynthesisAnnals of the Royal College of Surgeons of England2025
Revisional bariatric surgery following sleeve gastrectomy: a meta-analysis comparing Roux-en-Y gastric bypass and one anastomosis gastric bypass.
Synthesis in Annals of the Royal College of Surgeons of England, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 3 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
10 citing papers in PubMed, 3 syntheses or guidelines pooled it.
- Long-Term Outcomes of One Anastomosis Gastric Bypass: A Systematic Review and Meta-Analysis of 5-Year and Beyond.Obesity surgery · 2026Pooled it
- Primary and Revisional One Anastomosis Gastric Bypass: A Systematic Review and GRADE-Based IFSO Position Statement.Obesity surgery · 2026Pooled it
- The Nutritional Challenges Following Revisional Bariatric Surgery After Sleeve Gastrectomy: A Systematic Review and Meta Analysis.Obesity surgery · 2025Pooled it
- Clinical Outcomes, Risks, and Individualized Treatment Selection in Revisional Metabolic and Bariatric Surgery: A Narrative Review.Health science reports · 2026Article
- Seven-Year Comparative Outcomes of One Anastomosis Gastric Bypass and Roux-en-Y Gastric Bypass for Weight Recurrence Regain Post Sleeve Gastrectomy.Obesity surgery · 2026Article
- Article
- Management of Recurrent Weight Gain After Sleeve Gastrectomy: Comparative Effectiveness of Conversion Procedures Versus Obesity Management Medications.Obesity surgery · 2026Article
- Reporting issues with systematic reviews and meta-analyses.Annals of the Royal College of Surgeons of England · 2026Article
- Complications After Bariatric Surgery: Insights from a 14-Year Single-Institutional Study Without Fistula.Journal of clinical medicine · 2025Article
- One anastomosis gastric bypass (OAGB): a scoping review.BMC surgery · 2025Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
introductionThe number of bariatric operations is increasing each year. Sleeve gastrectomy is the most popular procedure; however, it often requires revision surgery because of insufficient weight loss, weight regain or gastro-oesophageal reflux disease (GORD). The most popular revisional procedures are Roux-en-Y gastric bypass (RYGB) and one anastomosis gastric bypass (OAGB). The primary outcome of this meta-analysis was weight loss after revisional surgery following laparoscopic sleeve gastrectomy and the secondary outcomes were gastro-oesophageal reflux, BMI difference, operative time, bleeding and anastomotic leak.
methodsA systematic electronic search was undertaken using PubMed, MEDLINE, Ovid, Cochrane Library and Google Scholar following PRISMA guidelines. The initial search identified 2,546 articles. After screening, seven papers met the inclusion criteria: six retrospective studies and one randomised controlled trial.
resultsIn total, 802 patients met the inclusion criteria: 390 had an OAGB and a further 412 had an RYBG. All patients previously had a sleeve gastrectomy for weight loss. The length of follow-up was 12 months for our primary outcome. We found no statistically significant difference in excess weight loss (%EWL) between OAGB and RYGB (
conclusionsThis meta-analysis showed no statistically significant difference between the two revision bariatric surgery procedures for %EWL. RYGB was superior to OAGB in reducing the incidence of symptomatic GORD, whereas OAGB had a significant shorter operative time.
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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 Socratic graph.