Remission of Rumination After Bariatric Roux-en-Y Gastric Bypass Surgery: A Case Report

Rumination disorder is characterized by the involuntary and effortless regurgitation of recently ingested food from the stomach to the mouth, without an identifiable anatomical cause.The etiology is poorly understood.We report the case of a 24-year-old woman with obesity and long-standing rumination disorder who had failed prior management strategies (diaphragmatic breathing and proton pump inhibitors) and achieved complete remission of rumination symptoms following bariatric Roux-en-Y gastric bypass (RYGB) surgery, with no recurrence during 12 months of follow-up.The immediate postoperative effect might suggest that anatomical changes may play a key role in symptom resolution rather than weight reduction.However, the neurohormonal, motility-related, and dietary effects of RYGB surgery might be contributing factors and topics for future research.To our knowledge, there are no previous reports of bariatric surgery for rumination disorder.