Mediciones de adiposidad intraabdominal por ultrasonido y factores asociados con riesgo cardiovascular en niños obesos / Ultrasound measurements of intra-abdominal adiposity and factors associated with cardiovascular risk in obese children
Rev. méd. Chile
;
138(2): 152-159, feb. 2010. tab, ilus
Artigo
em Espanhol
| LILACS
| ID: lil-546205
ABSTRACT
Background: Cardiovascular risk factors are commonly present in obese children. Aim: To evaluate the association among radiological measurements of intra-abdominal adipose tissue, and cardiovascular risk factors, in prepuberal obese children. Patients and Methods: We evaluated 30 obese (body mass index > p95) children aged 6 to 12 years (15 males). Anthropometry and blood pressure were measured. Subcutaneous and intra-abdominal fat thickness and fat area were measured by ultrasound (US) and computed tomography. Serum insulin, glucose and lipid profile were measured in a fasting blood sample. Homeostasis model assessment (HOMA) was calculated as an index of insulin resistance. Results: There was a significant correlation between US intra-abdominal fat thickness and HOMA (r = 0.47, p < 0.01), serum triglycerides (r = 0.46, p < 0.05) and with positive criteria for metabolic syndrome (r = 0.66, p < 0.01). A receiver operating curve (ROC) analysis showed that, above a cut-off of 45 mm for intra-abdominal fat thickness, US was able to identify insulin resistance with a sensibility and specificity of 79 and 69 percent respectively and metabolic syndrome with sensibility and specificity of 100 and 67 percent respectively. US and computed tomography measurements for intra-abdominal fat thickness were significantly correlated (r= 0.62, p < 0.01). Conclusions: US measurements of intra-abdominal fat thickness identify obesity-associated damage in childhood. Age-specific measurements of intra-abdominal adipose tissue may improve the detection power of this approach.
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Resistência à Insulina
/
Doenças Cardiovasculares
/
Gordura Intra-Abdominal
/
Lipídeos
/
Obesidade
Tipo de estudo:
Estudo diagnóstico
/
Estudo de etiologia
/
Estudo de incidência
/
Estudo observacional
/
Estudo de prevalência
/
Estudo prognóstico
/
Fatores de risco
Limite:
Criança
/
Feminino
/
Humanos
/
Masculino
Idioma:
Espanhol
Revista:
Rev. méd. Chile
Assunto da revista:
Medicina
Ano de publicação:
2010
Tipo de documento:
Artigo
País de afiliação:
Chile
Instituição/País de afiliação:
Hospital San Borja-Arriarán/CL
/
Universidad de Chile/CL
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