Meta-analysisindependent cross-checkabstract only checked★ key study I-BAR-04 in-depth review
Meta-analysis: Barrett's after sleeve
Risk of De Novo Barrett's Esophagus Post Sleeve Gastrectomy: A Systematic Review and Meta-Analysis of Studies With Long-Term Follow-Up.
Overview
Chandan S et al.. Clin Gastroenterol Hepatol 2025 · PMID 39059544 · DOI 10.1016/j.cgh.2024.06.041
About 5.6% developed new Barrett's esophagus; reflux and acid-medication use were about 3 times more frequent after sleeve.
Does the study support the specific claim? Yes · Methodological quality: moderate
Plain-language summary
Study explained simply
- What did the researchers want to find out?
BE after SG
- How was the study done?
Meta-analysis
- How many people, animals or samples were studied?
2046
- What was actually found?
BE 5.6%; GERD x3
- How large was the observed effect?
RR GERD 3.32
- What do the results mean in everyday life?
Reflux is a major downside of sleeve
- What are the study's limitations?
Heterogeneous observational
- What does it say about Elawady's specific claim?
Supports reflux/BE claim, not 'inevitable'
- Do the results apply to Germany and Europe?
Applicable
- What can explicitly not be concluded from this study?
Cancer risk
Scientific in-depth review
1. Full reference
- Authors
- Chandan S et al.
- Journal
- Clin Gastroenterol Hepatol
- Year
- 2025
- Identifier
- PMID 39059544 DOI 10.1016/j.cgh.2024.06.041
- Verification
- verified – PubMed efetch 2026-10-25
- Retracted
- no
- Corrections
- none
- Extent checked
- abstract only
- Conflicts of interest and funding
not stated in abstract
2. Research question
Incidence of de novo Barrett's esophagus after SG
3. Study design and population
- Study design
- Meta-analysis – Systematic review and meta-analysis
- Population
SG patients
- Country
Multinational
- Period
Search April 2024
- Sample size
19 studies, 2046 patients
4. Methods and endpoints
- Exposure / intervention
SG
- Comparator
Pre-SG status
- Endpoints
De novo BE, esophagitis, GERD, PPI use, hiatal hernia
5. Actual results
- Results
Pooled de novo BE 5.6% (3.5-8.8). Higher post-SG rates of erosive esophagitis RR 3.37, hiatal hernia RR 2.09, GERD symptoms RR 3.32, PPI use RR 3.65. GERD symptoms associated with BE rates.
- Absolute risks
De novo BE 5.6%
- Authors' conclusion
SG results in a significantly increased risk of de novo BE and higher esophagitis, PPI use and hiatal hernia; routine screening suggested.
6. Strengths
- Long-term studies only
- Meta-regression
7. Weaknesses
- Mostly observational, heterogeneous
- Pre-post comparison, no non-surgical control
- Includes A-BAR-08/09 type studies
8. Risk of bias
- Orienting tool
- AMSTAR 2
- Type of assessment
- simplified assessment (abstract only)
- Full formal assessment
- no
- Overall risk of bias
- some concerns
- Rationale
Overlaps with archive-cited cohorts (Felsenreich, Sebastianelli likely included); not independent confirmation.
9. Assessment of the statistical interpretation
10. Relevance to the specific claim
Supports C-BAR-02 and C-BAR-04.
11. Independent contrary findings
12. Transferability to Germany and Europe
Includes European cohorts.
13. Overall methodological judgement
Supports GERD increase; BE magnitude moderately uncertain.
| Multidimensional assessment | |
|---|---|
| Authenticity of the source | verified |
| Methodological quality | moderate |
| Risk of bias | some concerns |
| Precision of results | moderate |
| Directness | direct |
| Reproducibility | partly replicated |
| Consistency with the overall evidence | mixed |
| Regional transferability | moderate |
| Adequacy of the interpretation (by the archive) | not applicable |
14. Open questions
15. Linked fact checks
- Sleeve gastrectomy substantially increases gastro-oesophageal reflux disease and erosive oesophagitis. – Studies supporting the claim
- After sleeve gastrectomy reflux is inevitable, and patients must take acid-suppressing drugs for life. – Studies supporting the claim
- Sleeve gastrectomy leaves the oesophagus exposed to Barrett's oesophagus (archive: Barrett's in 4% at 10 years in SLEEVEPASS). – Studies supporting the claim
- Sleeve gastrectomy makes cancer appear decades earlier (it 'kills' and brings cancer forward). – Studies with mixed or unclear results