NCT07347093

Reversal of Roux-en-Y Gastric Bypass: A Swedish National Cohort Study

• Status: Active Not Recruiting
• Phase: —
• Study type: Observational
• Enrollment: 199 (actual)
• Sponsor: Vrinnevi Hospital · Academic / Other
• Sex: All
• Age: 18 Years
• Healthy volunteers: Not accepted

Summary

Objective: To investigates incidence, indications, symptom relief, complications, and weight outcomes after Roux-en-Y gastric bypass (RYGB) reversal. Background: RYGB is an effective treatment for obesity, but in rare cases may be associated with severe long-term complications requiring RYGB reversal. Evidence on incidence and outcomes is limited. Methods: This nationwide, multi-center, retrospective cohort study included all patients undergoing RYGB reversal in Sweden between 2007 and 2023. Data were obtained from the Scandinavian Obesity Surgery Registry (SOReg) and medical records.

Conditions

• Gastric Bypass Surgery
• Revisional Bariatric Surgery
• Complications After Bariatric Surgery

Timeline

• Start date: 2025-11-01
• Primary completion: 2026-03-31
• Completion: 2026-05-31
• First posted: 2026-01-16
• Last updated: 2026-01-20

Locations

1 site across 1 country: Sweden