SynthesisSurgical endoscopy2020
A systematic review of the effect of gastric pouch and/or gastrojejunostomy (stoma) size on weight loss outcomes with Roux-en-Y gastric bypass.
Synthesis in Surgical endoscopy, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis 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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
16 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Impact of Gastrojejunostomy Anastomosis Diameter on Weight Loss Following Laparoscopic Gastric Bypass: A Systematic Review.Obesity surgery · 2024Pooled it
- Extended Versus Standard Pouch in Roux-en-Y Gastric Bypass: Five To Nine Year Follow-Up Results of a Randomized Controlled Trial.Obesity surgery · 2026Trial
- Comparative endoscopic ultrasound assessment of the gastric pouch after FundoRing-OAGB and OAGB.BMC surgery · 2025Trial
- Midterm Results from the Dutch Common Channel Trial (DUCATI): Superior Weight Loss Results of the Long Roux Limb Gastric Bypass in Comparison to the Standard Bypass at 3-Year Follow-Up.Obesity surgery · 2021Trial
- Global Technical Variations in Roux-en-Y Gastric Bypass: A Worldwide Survey Among IFSO Members.Obesity surgery · 2026Article
- Beyond the Procedure: Revisiting the Technical Determinants of Sleeve Gastrectomy and Roux-en-Y Gastric Bypass.Journal of metabolic and bariatric surgery · 2026Review
- NATURAL HISTORY OF THE GASTROJEJUNAL ANASTOMOSIS IN PATIENTS UNDERGOING ROUX-EN-Y GASTRIC BYPASS.Arquivos de gastroenterologia · 2026Article
- Hospital Transfer Between Primary and Secondary Metabolic Bariatric Surgery in The Netherlands: A Cross-sectional Multi-party Computation Analysis of Frequency and Associated Factors.Obesity surgery · 2025Article
- Pouch Revision in Combination with Placement of a MiniMizer Ring as a Revisional Procedure in Patient with Suboptimal Clinical Response or Recurrent Weight Gain After RYGB.Obesity surgery · 2025Article
- Outcomes and complications after long versus short gastric pouch Roux-en-Y gastric bypass in patients with severe obesity.Scientific reports · 2024Article
- Bariatric surgery, through beneficial effects on underlying mechanisms, improves cardiorenal and liver metabolic risk over an average of ten years of observation: A longitudinal and a case-control study.Metabolism: clinical and experimental · 2024Article
- Gastrojejunostomy Closure Technique and Risk of Leak: an Evaluation in Ex Vivo Porcine Models.Obesity surgery · 2023Article
- The impact of gastric pouch size, based on the number of staplers, on the short-term weight outcomes of Roux-en-Y gastric bypass.Annals of medicine and surgery (2012) · 2022Article
- A 30 mm sized gastrojejunostomy may lead to a lower rate of therapy failure in comparison to a 45 mm sized gastrojejunostomy following laparoscopic Roux-en-Y gastric bypass.Annals of medicine and surgery (2012) · 2022Article
- "What Really Matters When Performing a Laparoscopic Roux-en Y Gastric Bypass?" Literature-Based Key Steps Towards Success and Standardization of the Procedure.Obesity surgery · 2021Review
- Global Variations in Practices Concerning Roux-en-Y Gastric Bypass-an Online Survey of 651 Bariatric and Metabolic Surgeons with Cumulative Experience of 158,335 Procedures.Obesity surgery · 2020Article
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
backgroundThe effect of the gastric pouch or Gastrojejunostomy (GJ or stoma) size on weight loss outcomes after Roux-en-Y gastric bypass (RYGB) is unclear with studies reporting conflicting results. The purpose of this systematic review was to determine the impact of the gastric pouch or stoma size on weight loss outcomes with RYGB.
methodsAn online search of PubMed was carried out to identify all articles evaluating the effect of the gastric pouch and/or gastric stoma size at the time of surgery on outcomes associated with RYGB. Quality and heterogeneity of data precluded a meta-analysis. So a systematic review was performed without a meta-analysis.
resultsThis review found a total of 14 studies (two of which were randomised) evaluating the effect of pouch sizes on weight loss outcomes after RYGB. Nine of these studies did not find any significant association between pouch size and weight loss outcomes whereas five studies found larger pouches to be associated with poorer weight loss outcomes. No study found larger pouches to be associated with better weight loss outcomes. Out of the ten studies (one of which was randomised) that evaluated the effect of stoma size on weight loss outcomes after RYGB, six studies did not show any significant effect of stoma size on weight loss outcomes and four found larger stoma sizes to be associated with significantly poorer weight loss outcomes. No study found larger stoma to be associated with better weight loss outcomes.
conclusionsThis review finds that a larger pouch or stoma size may be associated with adverse weight loss outcomes but the quality of data does not allow us to precisely determine optimum pouch or stoma size with RYGB. There is a need for more randomised data comparing long-term weight loss outcomes with pouches or stoma of different sizes.
Indexed as
Identifiers
31745633What OpenQuestion holds
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.