Obesity surgery and satiety control Obesity, i.e. body mass index (BMI) above 30 kg/m 2 , is a sign and symptom that has variable etiology, clinical picture and therapeutic response. In Brazil, it became a public health problem some time ago. There are few doubts that lifestyle changes provoked or imposed by "acculturation" processes are related to the increasing prevalence of obesity. The failure of traditional clinical treatment is particularly marked in morbidly or severely obese subjects

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... I > 40 kg/m 2 ), who represent 1% to 2% of all obese patients and whose prevalence has been signifi cantly increasing in some localities. In Ribeirão 11. Fujioka K. Follow-up of nutritional and metabolic problems after bariatric surgery. Diabetes Care. 2005;28(2):481-4.