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Previous issue date: 2012-03-27 / INTRODUCTION: It is known the potential effect of bariatric surgery on weight reduction and improvement of associated comorbidities but is still not determined the ratio obtained between the components of body weight. This study aims to verify the change in body composition during the first year of post-bariatric surgery. METHODS: Was conducted a prospective observational cohort study. Were selected 50 patients with morbid obesity who underwent bariatric surgery and who kept up the care team according to the protocol during the first year after surgery. Patients were assessed preoperatively and postoperatively for periods of one, three, six and 12 months by tetrapolar bioelectrical impedance analysis and laboratory testing of lipids and serum albumin. Data were statistically analyzed. RESULTS: The variables of body composition obtained statistical significance (p <0.001), the mean and standard deviation in the pre and one year postoperatively, are respectively: BMI: 45,8?7,5 to 30,0?4,8 kg/m?; body fat: 64,7?15,5 to 30,6?9,8 kg, body fat percentage: 51,6?4,17 to 37,3?7,6%, total cholesterol: 197,1?49,8 to 169,8?31,0 mg/dl. The reduction in BMI achieved patients withdrew from the classification of morbid obesity to obesity grade I. The decrease in body fat percentage shows a better proportion between the body components. The percentage of fat decreased significantly more in males (p=0,012). The lean body mass (p=0,000) had the highest reduction in patients operated by the SUS (Unified Health System - Government of Brazil). CONCLUSION: The change in body composition of patients in the course of the first year of post-operative RYGBP assessed by tetrapolar BIA was statistically significant for all variables, demonstrating the effectiveness of the surgical procedure and the clinical protocol set, which tends to favor a better prognosis for the health and weight maintenance of patients in the long term. / INTRODU??O: ? conhecido o efeito potencial da cirurgia bari?trica na redu??o do peso corporal e na melhora das comorbidezes associadas, mas ainda ? pouco determinada a propor??o obtida entre os componentes do peso corporal. Este estudo tem por objetivo verificar a modifica??o da composi??o corporal durante o primeiro ano de p?s-operat?rio de cirurgia bari?trica. M?TODO: Foi realizado um estudo de coorte observacional prospectivo. Foram selecionados 50 pacientes obesos m?rbidos que foram submetidos ? cirurgia bari?trica e, que mantiveram acompanhamento conforme protocolo da equipe assistencial. Os pacientes foram avaliados no pr? e no p?s-operat?rio nos per?odos de um, tr?s, seis e 12 meses por bioimped?ncia tetrapolar e exames laboratoriais de l?pides e albumina s?rica. Os dados foram submetidos ? an?lise estat?stica. RESULTADOS: A altera??o da composi??o corporal apresentou signific?ncia estat?stica (p<0,001). Para as vari?veis apresentadas, os valores de m?dia e desvio padr?o nos per?odos pr? e de um ano p?s-operat?rio, s?o respectivamente: IMC (?ndice de massa corporal): 45,8?7,5 para 30,0?4,8 Kg/m?; gordura corporal: 64,7?15,5 para 30,6?9,8 Kg; percentual de gordura corporal: 51,6?4,17 para 37,3?7,6%; colesterol total: 197,1?49,8 para 169,8?31,0 mg/dl. A redu??o de IMC alcan?ada retirou os pacientes da classifica??o de obesidade m?rbida para obesidade grau I. Houve uma maior redu??o de percentual de gordura no sexo masculino (p=0,012). A massa magra corporal (p=0,000) obteve maior redu??o em pacientes operados pelo SUS (Sistema ?nico de Sa?de - Governo do Brasil). A diminui??o no percentual de gordura corporal demonstra uma melhor propor??o entre os componentes corporais. CONCLUS?O: A modifica??o na composi??o corporal dos pacientes no primeiro ano de p?s-operat?rio de cirurgia bari?trica, avaliada por bioimped?ncia tetrapolar, foi estatisticamente significante para todas as vari?veis analisadas, demonstrando efetividade do procedimento cir?rgico e do protocolo cl?nico institu?do, o que tende a favorecer um melhor progn?stico para a sa?de e para a manuten??o do peso destes pacientes ? longo prazo.
| Identifer | oai:union.ndltd.org:IBICT/oai:tede2.pucrs.br:tede/1679 |
| Date | 27 March 2012 |
| Creators | Paris, Fernanda Guidi Colossi de |
| Contributors | Mottin, Cl?udio Cor? |
| Publisher | Pontif?cia Universidade Cat?lica do Rio Grande do Sul, Programa de P?s-Gradua??o em Medicina e Ci?ncias da Sa?de, PUCRS, BR, Faculdade de Medicina |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/doctoralThesis |
| Format | application/pdf |
| Source | reponame:Biblioteca Digital de Teses e Dissertações da PUC_RS, instname:Pontifícia Universidade Católica do Rio Grande do Sul, instacron:PUC_RS |
| Rights | info:eu-repo/semantics/openAccess |
| Relation | 7620745074616285884, 500, 600, -8624664729441623247 |
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