ArticleObesity surgery2020
Is Revisional Gastric Bypass as Effective as Primary Gastric Bypass for Weight Loss and Improvement of Comorbidities?
Article in Obesity surgery, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 6 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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
27 citing papers in PubMed, 6 syntheses or guidelines pooled it, 43 citations in OpenAlex.
- Efficacy and Safety of GLP- 1 Receptor Agonists in the Management of Weight Recurrence or Suboptimal Clinical Response after Undergoing Metabolic Bariatric Surgeries: A Meta-Analysis.Obesity surgery · 2025Pooled it
- Glucagon-Like Peptide-1 Receptor Agonists for the Treatment of Suboptimal Initial Clinical Response and Weight Gain Recurrence After Bariatric Surgery: a Systematic Review and Meta-analysis.Obesity surgery · 2025Pooled it
- Adjuvant Glucose-Like Peptide 1 Receptor Agonist Therapy for Suboptimal Weight Loss After Bariatric Surgery: a Systematic Review.Obesity surgery · 2024Pooled it
- Efficacy of High-dose Liraglutide 3.0 mg in Patients with Poor Response to Bariatric Surgery: Real-world Experience and Updated Meta-analysis.Obesity surgery · 2024Pooled it
- Nutrition, Physical Activity, and Prescription of Supplements in Pre- and Post-bariatric Surgery Patients: An Updated Comprehensive Practical Guideline.Obesity surgery · 2023Guideline
- What Is Weight Loss After Bariatric Surgery Expressed in Percentage Total Weight Loss (%TWL)? A Systematic Review.Obesity surgery · 2021Pooled it
- The Effect of Long-Term Immunosuppression on Patients Undergoing Sleeve-to-Gastric Bypass Conversion Surgery.Obesity surgery · 2026Article
- Incidence and Predictors of Suboptimal Early Weight Loss after Bariatric Procedures.Obesity surgery · 2026Article
- Clinical efficacy of tirzepatide for weight regain and suboptimal glycemic control following laparoscopic sleeve gastrectomy: a case series of three patients with obesity-associated type 2 diabetes.Frontiers in endocrinology · 2026Article
- Association of increased physical activity with greater fat mass loss following metabolic bariatric surgery: A longitudinal observational study.Scientific reports · 2025Observational
- Impact of Preoperative Food Addiction on Weight Loss and Weight Regain Three Years After Bariatric Surgery.Nutrients · 2025Article
- Five year outcomes of primary and secondary Single-Anastomosis Duodeno-Ileal bypass with Sleeve gastrectomy (SADI-S).Obesity surgery · 2025Article
- Post metabolic bariatric surgery weight regain: the importance of GLP-1 levels.International journal of obesity (2005) · 2025Review
- Evaluation of l-cell activity in the small intestine according to the extension of the biliopancreatic loop in patients undergoing Roux-en-Y gastric by-pass.Clinics (Sao Paulo, Brazil) · 2025Article
- Conversion of Sleeve Gastrectomy to Roux-en-Y Gastric Bypass: Is Intrathoracic Migration of the Sleeve of High Incidence?Obesity surgery · 2024Article
- The predictive relationship between early and long-term weight loss outcomes after one anastomosis gastric bypass.Langenbeck's archives of surgery · 2024Article
- Revisional surgery after restrictive surgery: midterm outcomes of a tertiary center.Surgical endoscopy · 2023Article
- Laparoscopic sleeve gastrectomy to Roux-en-Y gastric bypass conversion versus primary Roux-en-Y gastric bypass: a propensity score matching analysis.Surgical endoscopy · 2023Article
- What About My Weight? Insufficient Weight Loss or Weight Regain After Bariatric Metabolic Surgery.International journal of endocrinology and metabolism · 2023Review
- Weight loss and clinical outcomes following primary versus secondary Roux-en-Y gastric bypass: a multi-institutional experience.Surgical endoscopy · 2023Article
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 at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundRevisional gastric bypass (R-RYGB) surgery is utilized for the management of inadequate weight loss or weight regain observed after some cases of bariatric surgeries. Data on the mid-term effectiveness of primary gastric bypass (P-RYGB) compared with R-RYGB (e.g., post sleeve gastrectomy/gastric banding) are controversial.
methodsRetrospective chart review of all patients who received P-RYGB and R-RYGB (January 2011-June 2015) at our center. One hundred twenty patients who underwent P-RYGB and 34 R-RYGB who completed 18 months follow-up were included. We compared the effectiveness of P-RYGB with R-RYGB by assessing four anthropometric, two glycemic, and four lipid parameters, as well as the control of type 2 diabetes (T2DM), hypertension, dyslipidemia (remission, improvement, persistence, relapse, de novo), mortality and complications rates.
resultsA comparison of the effectiveness of P-RYGB with R-RYGB at 18 months revealed no significant differences in patients' age, gender, and preoperative BMI between groups. However, patients who received P-RYGB had lower mean weight (P = 0.001) and BMI (P < 0.001), reflected by a higher mean delta BMI (P = 0.02), total weight loss percentage (TWL%) (P < 0.0001) and excess weight loss percentage (EWL%) (P < 0.0001). No differences in glycemic parameters, lipid profiles, control of T2DM, hypertension, and dyslipidemia were observed. No death is reported and complication rates were comparable.
conclusionsAlthough R-RYGB effectively addressed inadequate weight loss, weight regain, and recurrence of comorbidities after restrictive bariatric surgery, R-RYGB resulted in inferior weight loss compared with P-RYGB. Neither procedure differed in their clinical control of T2DM, hypertension, and dyslipidemia. Both procedures exhibited comparable complication rates.
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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.