Hiatal Pouch Migration After Roux-en-Y Gastric Bypass
In brief
Post-gastric bypass hiatal pouch migration occurs in a notable share of patients
In a large retrospective review of Roux-en-Y gastric bypass cases, researchers documented how often the gastric pouch migrates into the hiatus and described its imaging appearance. The findings reveal that pouch migration is not rare and may be under-recognized, prompting clinicians to consider routine postoperative imaging follow-up, though the exact clinical impact remains to be defined.
- Journal
- World journal of surgery (Q1)
- Published
- 17 August 2026
- Study design
- Retrospective cohort
- Evidence level
- Level 3, Low (CEBM 3b)
- Authors
- Tomás Comissati Novoa, Federico Suldrup, Felipe Higuera, Fernando Wright, Axel Beskow
- PMID
- 42605538
- DOI
- 10.1002/wjs.70529
Why clinicians should know about it
- Picked for Bariatric and Metabolic Surgery (paper of the day, 18 August 2026): Post‑operative hiatal pouch migration after RYGB
Abstract
Hiatal hernia (HH) is common among patients with obesity and is frequently identified during preoperative evaluation for Roux-en-Y gastric bypass (RYGB). However, postoperative hiatal pouch migration after RYGB remains poorly characterized, with previous reports largely limited to symptomatic patients or small case series. We aimed to describe the frequency and imaging characteristics of postoperative hiatal pouch migration in a large retrospective cohort of patients undergoing RYGB.
Abstract as published, via PubMed.
For healthcare professionals. The summary is generated by AI from the published abstract, and the evidence level is assigned automatically from the study design on the Oxford CEBM hierarchy. Neither is medical advice. Read the full paper before changing practice.