Relationship between Obesity and Coronary Artery Disease Defined by Coronary Computed Tomography Angiography

• Autor(a) principal: Pereira,Lara Luiza Silvello
• Data de Publicação: 2020
• Outros Autores: Moraes,Gisele Marochi de, Carneiro,Adriano Camargo de Castro, Moreira,Valéria de Melo, Bello,Juliana Hiromi Silva Matsumoto, Prazeres,Carlos Eduardo Elias dos, Rochitte,Carlos Eduardo, Magalhaes,Tiago
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: International Journal of Cardiovascular Sciences (Online)
• Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2359-56472020000100057
• topic: Coronary Artery Disease; Obesity; Body Mass Index; Dyslipidemias; Risk Factors; Prevalence; Tomography/métodos; Coronary Angiography/methods

Abstract Background: Although associated with traditional cardiovascular risk factors, it is unclear whether obesity alone is associated with coronary artery disease (CAD). Objective: To investigate the role of obesity as a risk factor for CAD, defined by coronary computed tomography angiography (CCTA). Methods: This study retrospectively included 1,814 patients referred for CCTA in a hospital in São Paulo, from August 2010 to July 2012. CAD was identified by coronary calcium score and presence of coronary stenosis > 50%. Images were analyzed by two specialists, and the coronary findings were compared between obese and non-obese groups. A multivariate analysis model was used to assess obesity as an independent variable for the occurrence of obstructive CAD. Results: Among the study population, mean age was 58.5 +/- 11.5 years, 22.8% were obese (BMI = 30 kg/m2) and 66.3% were male. The prevalence of obstructive CAD was 18.4% in both groups. Obese patients had higher median calcium score compared to non-obese subjects (14.7 vs. 1.4, respectively, p = 0.019). In the multivariate analysis, obesity was not an independent factor for obstructive CAD (coefficient = -0.035, p = 0.102). Conclusion: Although no differences were observed in the prevalence of obstructive CAD between obese and non-obese individuals, coronary calcium scores were significantly in lower the latter group.