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Doctoral Thesis
DOI
10.11606/T.5.2016.tde-08092016-095921
Document
Author
Full name
Aline Nishizawa
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2016
Supervisor
Committee
Pasqualucci, Carlos Augusto Goncalves (President)
Antonio, Ana Maria do Amaral
Gorzoni, Milton Luiz
Jacob Filho, Wilson
Nakandakare, Edna Regina
Title in Portuguese
Associação entre adiposidade e aterosclerose sistêmica
Keywords in Portuguese
Adiposidade
Antropometria
Artérias
Aterosclerose
Autópsia
Estudos transversais
Gordura abdominal
Abstract in Portuguese
INTRODUÇÃO: A adiposidade tem sido associada à aterosclerose em vários estudos clínicos. No entanto, poucos estudos de autópsia tem investigado a relação entre adiposidade e aterosclerose sistêmica e os estudos existentes compararam medidas antropométricas e/ou gordura visceral com aterosclerose, porém não avaliaram a aterosclerose em vários sítios em um mesmo indivíduo, avaliando frequentemente apenas a aterosclerose nas artérias coronárias, utilizaram medidas aproximadas de estenose das artérias coronárias, os tamanhos das amostras foram pequenos e os indivíduos eram mais jovens ou de meia-idade. OBJETIVO: Investigar a associação entre adiposidade, mensurada através de medidas antropométricas e a massa de gordura visceral abdominal e torácica com a aterosclerose nas artérias aorta, coronárias, carótidas e cerebrais. MÉTODOS: Trata-se de um estudo transversal em que foram avaliados 240 sujeitos com 30 anos ou mais. Foram coletados dados sociodemográficos, fatores de risco cardiovasculares, medidas antropométricas e massas de gorduras pericárdica e visceral abdominal. O grau de aterosclerose nas artérias aorta, carótidas, coronárias e cerebrais foi avaliado através de medidas morfométricas e o coração foi avaliado quanto à presença de infarto do miocárdio. Foi realizada avaliação da associação entre medidas antropométricas e massa de gordura visceral com a aterosclerose. RESULTADOS: A gordura pericárdica foi associada ao grau de aterosclerose da aorta (p = 0,03). As gorduras viscerais abdominal (p = 0,006) e total (p = 0,006) apresentaram associação com o número de placas nas artérias coronárias. A relação cintura-quadril (RCQ) foi associada ao grau de aterosclerose da artéria aorta (p = 0,005), índice de estenose das artérias coronárias (p = 0,03) e ao número de placas nas artérias coronárias (p = 0,04). CONCLUSÕES: Dentre as medidas antropométricas, a RCQ e as gorduras pericárdica, viscerais abdominal e total foram as mais correlacionadas com o grau de aterosclerose nas diferentes artérias
Title in English
Association between adiposity and systemic atherosclerosis
Keywords in English
Abdominal fat
Adiposity
Anthropometry
Arteries
Atherosclerosis
Autopsy
Cross-sectional studies
Abstract in English
INTRODUCTION: Adiposity has been associated with atherosclerosis in several clinical studies. However, few autopsy studies have investigated the relationship between adiposity and systemic atherosclerosis and the previous studies compared anthropometric measurements and/or visceral fat with atherosclerosis, but they did not evaluate the atherosclerosis in several sites in the same individual, evaluating only atherosclerosis in coronary arteries, they used approximate stenosis measurements of the coronary arteries, the sample sizes were small and the individuals were younger and middle-aged. AIM: To investigate the association between adiposity, measured by anthropometric measurements and the weight of abdominal visceral and pericardial fat with atherosclerosis in the aorta, coronary, carotid and cerebral arteries. METHODS: This is a cross-sectional study which evaluated 240 subjects aged 30 or more. We collected demographic data, cardiovascular risk factors, anthropometric measurements and weight of pericardial and abdominal visceral fat. The degree of atherosclerosis in the aorta, carotid, coronary and cerebral arteries was evaluated by morphometric measurements and the heart was evaluated for the presence of myocardial infarction. The association between anthropometric measurements and weight of visceral fat with atherosclerosis was evaluated. RESULTS: Pericardial fat was associated with the degree of atherosclerosis of the aorta (p = 0.03). The abdominal (p=0.006) and overall (p=0.006) visceral fat were associated with the number of plaques in the coronary arteries. The waist-to-hip ratio (WHR) was associated with the degree of atherosclerosis of the aorta (p=0.005), stenosis index of the coronary arteries (p=0.03) and the number of plaques in the coronary arteries (p=0.04). CONCLUSIONS: WHR, pericardial, abdominal and total visceral fat were the measurement most correlated with the degree of atherosclerosis in different arteries
 
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Publishing Date
2016-09-09
 
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