Excess weight loss variation in late postoperative period of gastric bypass.

Background: In the late postoperative period of gastric bypass surgery, we observe that many patients weight regain. The objective of this study was to determine the excess weight loss variation at 24 and 60 months postoperative. A secondary objective was to evaluate in the period described, the association of weight regain with red meat intolerance, age, gender, and body mass index.

Need for multivitamin use in the postoperative period of gastric bypass.

Background: Based on the reduced gastric volume and the malabsorption produced by Roux-en-Y gastric bypass (RYGBP) and diet therapy, it is essential in the postoperative period to obtain and maintain an adequate nutritional state, with the aim of preventing malnutrition and seeking a healthy life. It is observed that patients have difficulty in understanding the new food choices that must considered, as they have eating habits that are very divergent from those currently proposed. There is often the need for vitamin and mineral replacement after laboratory tests.

Hepatic steatosis in patients undergoing bariatric surgery and its relationship to body mass index and co-morbidities.

Background: Although non-alcoholic hepatitis usually is asymptomatic and benign, this condition may progress to cirrhosis and hepatic failure. Some findings are similar to alcoholic hepatitis, but there is no history of excessive alcohol consumption. Among the factors associated with non-alcoholic hepatitis, obesity, diabetes and dyslipidemia are the most important.