Ulcers after Bariatric Surgery

Dear Colleagues,

Metabolic bariatric surgery is currently considered the best treatment for morbid obesity. Sleeve gastrectomy and Roux-en-Y gastric bypass are the most common interventions, but new procedures have spread worldwide. Marginal ulcers (MU) are a well-known complication following new and old metabolic interventions. Even if most of these ulcers respond to medical treatment, recurrent or chronic MU may require revisional intervention. The etiology is multifactorial, and non-steroidal anti-inflammatory drug (NSAID) use, smoking, and Helicobacter pylori infection have been advocated as risk factors for MU. However, mechanisms beyond the formation of recalcitrant ulcers have not yet been clarified, nor has the best treatment.

The aim of this Special Issue is to report the rate of MU after new bariatric procedures such as one anastomosis gastric bypass, single anastomosis sleeve-ileal bypass, or single anastomosis duodeno-ileal bypass and to further investigate the relationship between known risk factors and marginal ulcer (MU) formation, especially after revisional procedures.

Prof. Dr. Vincenzo Pilone
Dr. Antonio Vitiello
Guest Editors

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• marginal ulcer
• sleeve gastrectomy
• Roux-en-Y gastric bypass
• one anastomosis gastric bypass
• single anastomosis sleeve-ileal bypass
• single anastomosis duodeno-ileal bypass
• LSG
• RYGB
• OAGB
• SASI
• SADI