Abstract
Introduction
Marginal ulcer (MU) is a serious complication after Roux-en-Y gastric bypass (RYGB) procedures. This study reports the incidence, risk factors, and treatment outcomes of symptomatic and incidentally, at routine endoscopy diagnosed, MU.
Methods
All patients undergoing RYGB procedures between 2013 and 2018 at a single center were included. Upper endoscopy was performed in case of symptoms and/or routinely 2 and 5 years postoperatively.
Results
In total, 568 patients (83.3% female) underwent RYGB procedure with a median age of 40 years and median initial body mass index of 41 kg/m2. The median time to follow-up was 2.99 years. Routine 2- and 5-year upper endoscopy was performed in 256 (55.3%) and 65 (38.0%) eligible patients, respectively. In 86 (15.1%) patients, MU was diagnosed at a median time of 14.2 months (4.58–26.2) postoperatively and 24.4% of patients with MU were asymptomatic. In total, 76.7% of MUs were located on the side of the Roux limb. 88.4% of MUs were treated conservatively; re-operation was necessary in 10 (11.6%) patients. Smoking and type 2 diabetes mellitus were the only independent risk factors for MU development in multivariate analysis with a hazard ratio of 2.65 and 1.18 (HbA1c per unit >6.0), respectively.
Conclusion
MU is a common complication after gastric bypass surgery with 25% of patients being asymptomatic. Follow-up routine endoscopy is recommended for early MU detection and subsequent accurate therapy, especially in patients with the independent risk factors smoking and type 2 diabetes mellitus.
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The authors thank Ms. P. Heeb, scientific assistant, and Ms. N. Graf, statistician, for their contribution.
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All procedures performed were in accordance with the ethical standards of the local research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.
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Key Points
•Marginal ulcers are asymptomatic in up to 25%.
•MUs are a common complication after RYGB and must be excluded at a low threshold.
•Most MUs can be treated conservatively; follow-up upper endoscopy is mandatory.
•Smoking and T2DM are independent risk factors for the development of MU after RYGB.
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Süsstrunk, J., Wartmann, L., Mattiello, D. et al. Incidence and Prognostic Factors for the Development of Symptomatic and Asymptomatic Marginal Ulcers After Roux-en-Y Gastric Bypass Procedures. OBES SURG 31, 3005–3014 (2021). https://doi.org/10.1007/s11695-021-05363-4
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DOI: https://doi.org/10.1007/s11695-021-05363-4