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Updated: Sep 19, 2025
Roux-en-Y Gastric Bypass Operation in Rats
Published on: June 11, 2012
Chronic Abdominal Pain and Gastrointestinal Symptoms 12 Years After Primary Roux-en-Y Gastric Bypass: A
Åsne Ask Hyldmo1,2, Dag Arne Lihaug Hoff3,4, Arne Wibe5
1Department of Clinical Studies, Møre and Romsdal Hospital Trust, Ålesund, Norway. asne.ask.hyldmo@stolav.no.
Background:
The knowledge on chronic abdominal pain and gastrointestinal (GI) symptoms as a long-term complication to Roux-en-Y gastric bypass (RYGB) is limited. The aim of this study was to explore the frequency and characteristics of chronic abdominal pain and GI symptoms long-term after primary RYGB compared to the general population.
Methods:
A cross-sectional study of patients 10-15 years after RYGB compared to a control group with a similar age and sex distribution from the HUNT4 Survey. Abdominal pain and GI symptoms were assessed with a self-reported questionnaire.
Results:
A total of 496 patients were included, with a mean observation time of 11.7 ± SD 1.6 years after RYGB. The controls were 3000 participants from HUNT4. Chronic abdominal pain was reported by 162 (32.7%) RYGB patients compared to 697 (23.2%) of the controls (p < 0.001). Bloating was the most common GI symptom reported by 356 (72%) RYGB patients. Eighty-two (16.5%) RYGB patients and 302 (10.1%) controls graded chronic pain as severe (p < 0.001). Severe chronic pain after RYGB was more often located in the upper part of the abdomen in 58 (71%) patients, associated with severe nausea in 27 (33%) patients, and less often relieved after defecation in 35 (42%) patients compared to the controls (p < 0.001).
Conclusions:
Twelve years after RYGB, a third of patients reported chronic abdominal pain compared with a quarter of controls. Half of the participants with chronic abdominal pain in both groups rated the pain as severe. The location of severe pain and associations with other gastrointestinal symptoms differed between the two groups.
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