Trial reportObesity surgery2025
Three-Year Results of Comparison Between Ring- versus Non-ring-Augmented Roux-en-Y Gastric Bypass: A Randomized Control Trial.
Trial report in Obesity surgery, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers, 1 of them a synthesis 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
3 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Ring-Augmented Versus Standard Roux-en-Y Gastric Bypass: A Systematic Review and Meta-Analysis of Randomized Controlled Trials with GRADE Assessment.Obesity surgery · 2026Pooled it
- Ring-Augmented versus Non-Ring-Augmented One-Anastomosis Gastric Bypass as Revisional Surgery after Sleeve Gastrectomy: a Comparative Cohort Study.Obesity surgery · 2026Article
- Analysis of quality of life and reflux oesophagitis following Billroth II and Roux-en-Y gastrointestinal reconstruction for gastric cancer.World journal of gastrointestinal surgery · 2026Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
8 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundSuboptimal clinical response (SCR) after laparoscopic Roux-en-Y gastric bypass (RYGB) is often attributed to gastric pouch and gastrojejunostomy dilatation. Ring placement, which includes a ring to prevent pouch dilatation, may help reduce SCR. This study compared 3-year outcomes of ring-augmented (rRYGB) versus non-ring-augmented RYGB (nrRYGB).
methodsA single-blinded, randomized controlled trial was conducted in two specialized bariatric centers, including 120 rRYGB and 120 nrRYGB patients operated on between January 2019 and March 2020. The primary endpoint was weight loss (WL), assessed by the percentage of excess weight loss (%EWL) and total weight loss (%TWL). Secondary endpoints included gastric pouch and gastrojejunostomy volumetry, complications, quality of life (QoL), food tolerance (FT), associated medical problems, and recurrent weight gain (RWG, > 20% of TWL).
resultsNinety-two nrRYGB and 96 rRYGB patients completed the 3-year follow-up. Both groups achieved significant WL (p < 0.001); however, rRYGB had significantly higher %EWL and %TWL (p = 0.012, < 0.001) and lower RWG (p < 0.001). At 3 years, rRYGB had smaller gastric pouch volumes, narrower gastrojejunostomy diameters, and alimentary limb diameters (p < 0.001), with lower FT scores (p < 0.001) and incidence of dumping (p = 0.042). Both groups showed comparable QoL improvements and resolution of associated medical problems.
conclusionrRYGB patients had better %EWL and %TWL and less recurrent weight gain. They maintained smaller volumes of the gastric pouches, smaller diameters of the gastrojejunostomy anastomoses and the alimentary limbs, and lower dumping after 3 years. The attribution of the ring could help patients in the long term in their postoperative period.
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