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Master's Dissertation
DOI
10.11606/D.5.2013.tde-12042013-102419
Document
Author
Full name
Ruth Rocha Franco
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2012
Supervisor
Committee
Damiani, Durval (President)
Koch, Vera Hermina Kalika
Longui, Carlos Alberto
Title in Portuguese
O efeito da sibutramina na perda de peso de adolescentes obesos
Keywords in Portuguese
Adolescentes
Índice de massa corporal
Obesidade
Sibutramina
Síndrome metabólica
Síndrome X
Abstract in Portuguese
Objetivo: Avaliar o efeito da sibutramina na perda de peso de adolescentes obesos e as mudanças ocorridas nos parâmetros da síndrome metabólica com a perda de peso. Pacientes e métodos: O estudo foi duplo cego placebo controlado tipo cross-over com duração de 13 meses. Os pacientes receberam placebo ou sibutramina por 6 meses e vice-versa, nos 6 meses seguintes. Foram incluídos no estudo 73 adolescentes obesos de ambos os sexos com idades entre 10 e 18 anos. Os exames laboratoriais e exames de imagem foram realizados antes, no período de wash-out e ao final dos 13 meses de acompanhamento. Foram dosados: Colesterol total e frações, triglicérides, Leptina, proteína C reativa, transaminases e teste de tolerância à glicose oral. Os exames de imagem realizados foram: ultrassom de abdômen, Ecocardiograma, Eletrocardiograma, idade óssea. Resultados: A porcentagem de pacientes que perderam 10% do peso inicial no placebo foi de 46% e no grupo sibutramina foi de 75%. Quando usaram o placebo, o peso em média se elevou em1,61 kg, DP 4,46 e o IMC reduziu-se em média 0,24 kg/m2 DP 1,57 enquanto que os pacientes que receberam a sibutramina, o peso reduziu-se em média 4,47 kg e DP 5,87 e o IMC reduziu-se em média 2,38 kg/m2 e DP 2,36 com p < 0,001. Apesar da sibutramina reduzir o peso, IMC e medida de circunferência abdominal as mudanças metabólicas laboratoriais não foram observadas no período de tempo avaliado. Conclusão:A sibutramina induziu significantemente mais perda de peso em adolescentes obesos comparado ao placebo, sem efeitos colaterais significativos. Embora tivesse havido perda de peso, no período observado, não houve diferenças estatisticamente significantes nos parâmetros metabólicos
Title in English
The efect of sibutramine in obese adolescents
Keywords in English
Adolescents
Body mass index
Metabolic syndrome
Metabolic syndrome X
Obesity
Sibutramine
Abstract in English
Objective: Evaluate the effect of sibutramine on weight loss and changes in the parameters of the metabolic syndrome due to weight loss in obese adolescents. Patients and methods: This was a randomized double blind crossover study with duration of 13 months. The study included 73 obese adolescents of both sexes aged between 10 and 18 years (with BMI > 2DP registered at the outpatient clinic of the Pediatric endocrinology Department of Hospital das Clínicas, São Paulo, Brazil, between 2007 and 2010. Patients were randomized to receive either placebo followed by sibutramine (6 months each) or sibutramine followed by placebo (6 months each). Anthropometric measurements, laboratory tests and imaging studies were performed at baseline, during the wash-out period and at the end of the 13 months follow-up. Total cholesterol, HDL, triglycerides, leptin, C-reactive protein, transaminases and oral glucose tolerance were tested. The following Imaging studies were performed: abdominal ultrasound, echocardiogram, EKG, bone age X-ray. Results: The percentage of patients who lost at least 10% of initial weight while taking the placebo was 46% and while taking sibutramine was 75%. While on placebo, average weight increased by 1.61 kg (SD 4.46). BMI decreased by 0.24 kg/m2 (SD 1.57) as a consequence of growth. While on sibutramine, weight decreased on average by 4.47 kg (SD 5.87) and mean BMI decreased by 2.38 kg/m2 (SD 2.36, p <0.001). Changes in BMI, waist circunference, or metabolic changes were not found statistically significant. Conclusion: Sibutramine induced significantly more weight loss in obese adolescents compared to placebo, without significant side effects. Although there was weight loss, in the study period there were no statistically significant differences in metabolic parameters
 
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Publishing Date
2013-04-17
 
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