SynthesisObesity surgery2022
Gastroesophageal Cancer After Gastric Bypass Surgeries: a Systematic Review and Meta-analysis.
Synthesis in Obesity surgery, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 2 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
19 citing papers in PubMed, 2 syntheses or guidelines pooled it, 29 citations in OpenAlex.
- Primary and Revisional One Anastomosis Gastric Bypass: A Systematic Review and GRADE-Based IFSO Position Statement.Obesity surgery · 2026Pooled it
- Gastric cancer after Bariatric Bypass Surgery. Do they relate? (A Systematic Review).Obesity surgery · 2023Pooled it
- Gastric cancer arising in the bypassed stomach after Roux-en-Y gastric bypass: a case report.International journal of surgery case reports · 2026Article
- Gastric Bipartition with Functional Duodenum Exclusion (GBp-FDE) as a Possible Surgical Conversion of Sleeve Gastrectomy in Patients with De Novo GERD and Obesity Recidivism: Preliminary Results of a Case Series.The American journal of case reports · 2025Article
- Gastrojejunal Anastomosis Adenocarcinoma Occurring After Trans-Oral Revision for Weight Recurrence After Roux-en-Y Gastric Bypass.ACG case reports journal · 2025Article
- Laparoscopic Upper Polar Esophagogastrectomy with Gastroplasty Using Gastric Remnant After Roux-en-Y Gastric Bypass for Recurrent Gastroesophageal Junction Adenocarcinoma.Obesity surgery · 2025Article
- Cancer research in Lebanon: Scope of the most recent publications of an academic institution (Review).Oncology letters · 2024Review
- Article
- Bleeding Mass in Remnant Stomach, Unveiling Lynch Syndrome 18 Years After Bariatric Roux-En-Y Gastric Bypass Surgery.ACG case reports journal · 2024Article
- Adenocarcinoma of the Gastro-jejunal Anastomosis After One Anastomosis Gastric Bypass.Journal of gastrointestinal cancer · 2024Article
- THE GROWING EVIDENCE OF THE RELATIONSHIP BETWEEN OBESITY AND CANCER AND THE ROLE OF BARIATRIC SURGERY.Arquivos brasileiros de cirurgia digestiva : ABCD = Brazilian archives of digestive surgery · 2024Review
- One anastomosis gastric bypass as a primary bariatric surgery: MBSAQIP database analysis of short-term safety and outcomes.Surgical endoscopy · 2024Article
- Article
- Endoscopic Exploration of the Excluded Stomach in Roux-en-Y Gastric Bypass Patients: Which Enteroscope to Use?Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract · 2023Article
- Is gastric cancer after bariatric surgery on the rise? Will history repeat itself?Chinese journal of cancer research = Chung-kuo yen cheng yen chiu · 2023Article
- Identifying health research in the era of COVID-19: A scoping review.SAGE open medicine · 2023Article
- Gastric Cancer After Bariatric Surgeries.Journal of metabolic and bariatric surgery · 2022Review
- Oesophageal and Gastric Cancer After Bariatric Surgery: an Up-to-Date Systematic Scoping Review of Literature of 324 Cases.Obesity surgery · 2022Article
- Combined laparoscopic pouch and loop resizing as a revisional procedure for weight regain after primary laparoscopic one-anastomosis gastric bypass.Journal of minimal access surgeryArticle
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Data comparing the occurrence of gastroesophageal cancer after gastric bypass procedures are lacking and are only available in the form of case reports. We perform in this study a systematic review and a meta-analysis of all the reported cases of gastroesophageal cancer following Roux-en-Y gastric bypass (RYGB) and loop gastric bypass-one anastomosis gastric bypass/mini gastric bypass (LGB-OAGB/MGB). We conducted a systematic review of all the reported cases in articles referenced in PubMed/Medline, Cochrane, and Scholar Google. Only cases of gastro-esophageal adenocarcinoma following RYGB or LGB-OAGB/MGB are included. Statistical analysis was done accordingly. Fifty cases were identified, along with 2 reported in this paper. Sixty-one percent (27/44) of the cancers after RYGB were in the gastric tube compared to 37.5% (3/8) after LGB-OAGB/MGB. This resulted in an odds ratio of 0.38 (p-value = 0.26), which failed to prove an increase in cancer occurrence in the gastric tube after LGB-MGB/OAGB compared to RYGB. The most common symptoms were dysphagia for cancers occurring in the gastric tube (15/30) and abdominal pain for those occurring in the excluded stomach (10/22). Twenty-nine/thirty of the cancers in the gastric tube were diagnosed by gastroscopy and 13/22 of the cancers in the excluded stomach were diagnosed by CT scan. Gastroesophageal cancers after gastric bypass procedures occur commonly in the excluded stomach where many are not identified by conventional means. Physician awareness and patient education as well as lifelong follow-up are essential for maintaining bypass surgeries on the beneficial side.
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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.