High rate of de novo esophagitis 5 years after sleeve gastrectomy: a prospective multicenter study in Spain.

Background: Major concerns years after the sleeve gastrectomy (SG) include weight regain, development of hiatal hernia (HH) and gastroesophageal reflux disease, with esophagitis and Barrett's esophagus (BE). Both problems could be related, and the incidence of asymptomatic patients is troubling.

Objective: To study the incidence of reflux symptoms, esophagitis, BE, HH, and asymptomatic pathology and their relationship with weight regain in patients 5 years after undergoing SG at different bariatric centers in Spain.

The main participation of the enterohormone GLP-1 after bariatric surgery.

Background: Numerous hypotheses are called to explain the beneficial effect on glucose metabolism after bariatric surgery. Some authors advocate for the secretion and release of various substances with endocrine functions for the explanation on this event. One of the substances most marked as effector, with contrasting effects but controversial data, is GLP-1.