Consumo alimentar e sua associação com estado nutricional, atividade física e fatores sociodemográficos de candidatos à cirurgia bariátrica / Food consumption and its association with nutritional status, physical activity and sociodemographic factors of bariatric surgery candidates

RESUMO Objetivo: avaliar a associação do consumo alimentar com estado nutricional, atividade física e fatores sociodemográficos no pré-operatório de cirurgia bariátrica. Métodos: estudo transversal, realizado no período de 2018 a 2019, com pacientes internados para a cirurgia bariátrica no Hospital Universitário Oswaldo Cruz da Universidade Federal de Pernambuco. Foram obtidos dados sociodemográficos, estado nutricional pelo índice de massa corporal (IMC), circunferência da cintura, maior peso e peso pré-cirúrgico, consumo alimentar obtido pelo questionário de frequência alimentar baseado na pirâmide alimentar adaptada para o paciente bariátrico e atividade física. Resultados: participaram do estudo 60 pacientes, sendo 78,3% do sexo feminino, com idades de 38,8±9,6 anos, 53,3% casados e 70% dos indivíduos com mais de 12 anos de estudo. Na prática de atividade física, 31,7% eram sedentários. Sobre o estado nutricional, a média de IMC observada foi de 47,3±6,96kg/m2. O peso pré-operatório, maior peso atingido antes da cirurgia e circunferência da cintura foi maior no sexo masculino (p<0,05). Houve associação entre atividade física e consumo alimentar, sendo que indivíduos sedentários consumiam mais carboidratos (p=0,041). Por outro lado, dados sociodemográficos e estado nutricional não apresentaram associações com o consumo. Conclusão: o nível de atividade física evidenciou associação significativa apenas com o consumo de carboidratos.

ABSTRACT Objective: to evaluate the association of food consumption with nutritional status, physical activity and sociodemographic factors in the bariatric surgery period preoperative. Methods: we conducted a cross-sectional study from 2018 to 2019, with patients admitted for bariatric surgery at the Oswaldo Cruz University Hospital, Federal University of Pernambuco. We collected data sociodemographic and nutritional data such as body mass index (BMI), waist circumference, highest weight and pre-surgical weight. We evaluated food consumption with the food frequency questionnaire based on the food pyramid adapted for bariatric patients and physical activity. Results: the study involved 60 patients, 78.3% were female, mean age was 38.8±9.6 years, 53.3% were married, and 70% had more than 12 years of education. As for physical activity, 31.7% were sedentary. Regarding nutritional status, the mean BMI was 47.3±6.96kg/m2. Preoperative weight, highest weight reached before surgery and waist circumference were higher in males (p<0.05). There was an association between physical activity and food intake, and sedentary individuals consumed more carbohydrates (p=0.041). On the other hand, sociodemographic data and nutritional status were not associated with food consumption. Conclusion: the level of physical activity showed significant association only with carbohydrate consumption.

Revisión bibliográfica: obesidad infanto juvenil y cirugía bariátrica / Literature review: juvenile obesity and bariatric surgery

La prevalencia de sobrepeso y obesidad en pacientes pediátricos ha aumentado significativamente en las últimas décadas, lo que se asocia a complicaciones a corto y largo plazo lo que conlleva un deterioro en la calidad de vida y aumento de la morbimortalidad asociada principalmente a enfermedades cardiovasculares. El manejo inicial de un paciente con exceso de peso se basa fundamentalmente en dieta y la realización periódica de actividad física. Sin embargo, en los casos de obesidad severa las modificaciones de estilo de vida son insuficientes para la disminución de peso, existiendo en la mayoría de los casos una reganancia de peso. En estos casos la cirugía bariátrica es una opción terapéutica y complementaria al tratamiento médico. Existen diversas técnicas quirúrgicas que alteran anatómicamente y/o funcionalmente el tracto gastrointestinal usado para el tratamiento de la obesidad. Estos procedimientos actúan mediante la restricción de la capacidad del estómago, interferencia con la progresión de la comida, o la desviación de los contenidos ingeridos de una región del tracto gastrointestinal a otra. En la actualidad, los procedimientos más utilizados para los adolescentes incluyen el bypass gástrico en Y de Roux, la banda gástrica ajustable, y por último la gastrectomía en manga, no existiendo estudios que evalúen las complicaciones a largo plazo. Las indicaciones de cirugía bariátrica en adolescentes se basan en el grado de obesidad, la presencia de comorbilidades y el fracaso de tratamiento médico multidisciplinario, entre otras.

The prevalence of overweight and obesity in pediatric patients has sharply increased in recent decades, that is associated with short and long term complications that imply a worsening in the quality of life and increased morbidity and mortality mainly associated with cardiovascular disease. The initial management of a patient with overweight is primarily based on diet and regular physical activity. However, in cases of severe obesity, changes in lifestyle are insufficient for weight reduction, existing in most cases weight gain. In these cases, bariatric surgery is a complementary therapeutic option to medical treatment. There are several surgical techniques that modify the anatomy and/or function of the gastrointestinal tract used in the treatment of obesity. These methods act by restricting stomach capacity, interfering with the progression of food, or deviation of ingested in a region of the gastrointestinal tract to other content. Currently, the most widely used procedures in obese teenagers include gastric bypass Roux, adjustable gastric banding, and finally sleeve gastrectomy. There are not studies evaluating long-term complications. Indications for bariatric surgery in adolescents are based on the degree of obesity, the presence of comorbidities and the failure of multidisciplinary medical treatment, among others.

Vertical gastrectomy in overweight and non-overweight rats

ABSTRACT PURPOSE: To compare the two lines suture (total and seromuscular) after partial gastrectomy in normal and overweight rats. METHODS: Forty Wistar rats were distributed in two groups. Group A received normal diet; group B, normal diet and supplementation with saccharose in the water. When group B progressed to a statistically greater weight than the animals of group A, the experiment (sleeve-like gastrectomy) was conducted with gastrorraphy in two sutures lines (total and seromuscular).The animals were distributed into two subgroups of 10. A1 and A2 subgroups were sacrificed at 7 and 14 days postoperatively as well as B1 and B2. Mortality, morbidity, complications attributed to the gastric suture, biochemical dosages, Lee index, macroscopy, weight of retroperitoneal and gonadal fat, optical microscopy with hematoxylin-eosin and picrosirius-red, were the evaluation parameters. RESULTS: The overweight group achieved statistically greater weight after 16 weeks in induced obesity; there was no mortality or complications with clinical consequences attributable to morbidity. The overweight group had statistically greater weight of gonadal and retroperitoneal fat. The difference was observed in urea, albumin, total cholesterol and indirect bilirubin. CONCLUSION: There was no outcome difference between the overweight and non-overweight group in two suture lines in gastrorrhaphy after sleeve-like gastrectomy.

Biliopancreatic diversion with duodenojejunal exclusion associated with truncal vagotomy: a new proposal for type 2 diabetes mellitus treatment / Derivação biliopancreática com exclusão duodeno-jejunal associada à vagotomia troncular: uma nova proposta para o tratamento do diabetes melito tipo 2

PURPOSE: To evaluate the effectiveness of the biliopancreatic diversion surgery with duodenojejunal exclusion in combination with truncal vagotomy in type 2 diabetes mellitus (T2DM) patients with overweight or class I or II obesity. METHODS: The study included ten patients with T2DM and class I or II obesity or overweight who were subjected to biliopancreatic diversion with duodenojejunal exclusion in combination with truncal vagotomy. The blood glucose levels during the pre- and postoperative periods were compared using the Friedman test. The significance level adopted was 5%. RESULTS: There were significant differences between preoperative and postoperative blood glucose levels at three months (p=0.01), six months (p=0.001) and 12 months (p=0.001). There was also a significant difference between one month postoperative blood glucose and six months postoperative blood glucose (p=0.01). Glycosylated hemoglobin levels decreased in 80% of patients, there was marked improvement in their lipid profiles, and the average BMI reduction was 7.0±1.5 kg/m² at 12 months after the surgery. CONCLUSION: In patients with type 2 diabetes mellitus associated with class I/II obesity or overweight, performing biliopancreatic diversion with duodenojejunal exclusion in combination with truncal vagotomy resulted in glycemic control, reduction of excess weight, and improvement of lipid profile 12 months after the surgery.

OBJETIVO: Avaliar a eficácia da operação de derivação biliopancreática com exclusão duodeno-jejunal associada com vagotomia troncular em doentes com diabetes tipo 2 com sobrepeso ou obesidade classe I ou II. MÉTODOS: Foram estudados dez doentes com diabetes melito tipo 2 e sobrepeso ou obesidade grau I ou II submetidos à derivação biliopancreática com exclusão duodeno-jejunal associada à vagotomia troncular. Os valores de glicemia no pré e no pós-operatório foram comparados pelo teste de Friedman. O nível de significância adotado foi de 5%. RESULTADOS: Houve diferença significante (p=0,01) nas glicemias pré e pós-operatórias de três meses, de seis meses (p=0,001) e de 12 meses (p=0,001). Houve diferença significante entre a glicemia pós-operatória de um mês e glicemia pós-operatória de seis meses (p=0,01). O nível de hemoglobina glicosilada reduziu-se em 80% dos doentes, houve melhora acentuada do perfil lipídico e a média da redução do IMC foi de 7,0±1,5 kg/m² após 12 meses da operação. CONCLUSÃO: No paciente com diabetes melito tipo 2 associado com sobrepeso ou obesidade grau I/II, a realização da derivação biliopancreática com exclusão duodeno-jejunal associada à vagotomia troncular proporcionou controle glicêmico, redução do excesso de peso e melhora do perfil lipídico após 12 meses da operação.