Evaluation of the Incidence of the Esophagogastric Pre-Cancerous Mucosal Lesions after Bariatric Surgery.

Background: Bariatric surgery is associated with significant risk reduction for obesity-related and hormone-mediated cancers; however, few studies report gastric or esophageal cancer development after bariatric surgery. This study evaluates the incidence of pre-cancerous mucosal lesions one year after bariatric surgery.

Materials And Methods: Eligible patients for omega-loop gastric bypass and classic Roux-en-Y gastric bypass (RYGB) underwent upper endoscopy before bariatric surgery and one year after the procedure.