Gastroesophageal reflux after sleeve gastrectomy: The dimension of the problem

Sleeve gastrectomy is a safe and effective bariatric surgery in terms of weight loss and longterm improvement or resolution of comorbidities. However, its achilles heel is the possible association with the development with the novo and/or worsening of pre-existing gastroesophageal reflux disease. The anatomical and mechanical changes that this technique induces in the esophagogastric junction, support or contradict this hypothesis. Questions such as "what is the natural history of gastroesophageal reflux in the patient undergoing gastric sleeve surgery?", "how many patients after vertical gastrectomy will develop gastroesophageal reflux?" and "how many patients will worsen their previous reflux after this technique?" are intended to be addressed in the present article. (C) 2023 Published by Elsevier Espana, S.L.U. on behalf of AEC.