VITAMIN D DEFICIENCY AND PARATOHOMMONIUM INCREASE IN LATE POSTOPERATIVE GASTRIC BYPASS IN ROUX-EN-Y.

Background: Roux-en-Y gastric bypass patients can experience changes in calcium metabolism and hyperparathyroidism secondary to vitamin D deficiency.

Aim: To evaluate nutritional deficiencies related to the calcium metabolism of patients undergoing gastric bypass with a 10-year follow-up.

Method: This is a longitudinal retrospective study of patients submitted to Roux-en-Y gastric bypass at a multidisciplinary clinic located in the Brazilian southeast region.

Metabolic Changes Up to 10 years After Gastric Bypass.

Objective: The aim of this study was to investigate the lipid and glycemic profiles of patients up to 10 years after Roux-en-Y gastric bypass.

Method: A retrospective, longitudinal study was conducted at a multidisciplinary center for the treatment of obesity in the state of São Paulo, Brazil. The study included 150 patients submitted to unbanded laparoscopic Roux-en-Y gastric bypass.

MAST CELLS DISTINGUISH EOSINOPHILIC ESOPHAGITIS IN PEDIATRIC PATIENTS.

Background:: Mast cells exert a substantial role in gastrointestinal allergic diseases. Therefore, it is reasonable to presume that mast cell may aid diagnosis in eosinophilic gastroenteropathy.

Objective:: To evaluate whether mast cell count in the esophageal epithelium can discriminate eosinophilic esophagitis, proton-pump inhibitor (PPI)-responsive eosinophilic esophagitis and gastroesophageal reflux esophagitis.

The polypropylene mesh in the laparoscopic repair of large hiatal hernias: technical aspects.

Background: The minimally invasive surgery has gained rapidly important role in the treatment of gastroesophageal reflux disease. However, the best method to treat large paraesophageal hernias (type III and IV) is still under discussion. The use of prosthetics for enhancing the crural repair has been proposed by several authors in order to reduce the high relapse rates found in these patients.