Avaliação ultrassonográfica da gordura visceral em participantes do Projeto Atividade Física na Vila ênfase na correlação com os fatores de risco cardiometabólicos / Sonographic assessment of visceral fat in participants of Project Atividade Física na Vila emphasis in correlation with cardiometabolics risk factors

AUTOR(ES)
DATA DE PUBLICAÇÃO

2009

RESUMO

Abdominal obesity is closer to epidemic proportions in some countries with increasing prevalence among population around the world. Epidemiological studies have been confirmed that abdominal obesity, and the increase of visceral fat (VF), is associated to cardiometabolic diseases. The visceral fat analysis is limited because of the lack of confident and low cost methods. The prior objective of this work was to analyze the relationship between antropometrical and VF measures taken from ultrasonography (US) and estimate the use of US in prediction of cardiometabolic diseases. Abdominal circumference, body mass index, glicemic / lipidic profile and blood pressure and measurement of VF and SCF were taken from 148 volunteers. The US was always performed by de same examiner. VF measure was proceed with a 3,5 MHz probe, 1,0 cm from the umbilicus in a transversal view, and defined as the distance between the internal face of rectus-abdominis muscle and the anterior wall of the aorta. The same probe was used to the subcutaneous fat (SCF) measurements, at the same region.SCF was defined as the distance between the cutaneous surface and the external face of rectus-abdominis muscle, and also determining VF/SCF ratio. VF was better associated to abdominal circumference than to BMI, and there wasnt found significant difference between gender. The group with metabolic syndrome (MS) showed highest values of VF and VF/SCF. VF ≥ 37,2 mm represented an eight times increased risk in MS development (OR = 8,9, IC=3,7-21, p<0,001).This cut off (37,2 mm) showed good sensibility (81%) and positive predictive value (74%). 43% of the patients with VF≥37,2 mm were identified as moderate/severe CVR. We concluded that VF measured by US is useful on MS diagnosis and at the identification of severe CVR patients. We also suggest a cut off value ≥ 37,2mm to the MS diagnosis.

ASSUNTO(S)

radiologia medica gordura visceral síndrome metabólica ultrassonografia visceral fat sonography cardiovascular risk metabolic syndrome risco cardiovascular

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