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  • Title: Visceral adiposity index and the risk of heart failure, late-life cardiac structure, and function in ARIC study.
    Author: Xu C, Guo Y, Zhang S, Lai Y, Huang M, Zhan R, Liu M, Xiong Z, Huang Y, Huang R, Liao X, Zhuang X, Cai Z.
    Journal: Eur J Prev Cardiol; 2023 Sep 06; 30(12):1182-1192. PubMed ID: 37036032.
    Abstract:
    BACKGROUND: It is well established that obesity is associated with the risk of heart failure (HF). However, the data about relationship between visceral fat and the risk of HF are limited. AIMS: We aim to evaluate the association between visceral obesity assessed by visceral adiposity index (VAI) and incident HF and left ventricular (LV) structure and function in Atherosclerosis Risk in Communities (ARIC) study. METHODS: We included 12 161 participants (aged 54.1 ± 5.8 years) free of history of HF and coronary heart disease at baseline (1987-89) in ARIC study. We used multivariable Cox hazard regression models to assess the association between the VAI and incident HF. We further explored the effects of the VAI on LV geometry and function among 4817 participants with echocardiographic data using multivariable linear regression analysis and multinomial logistic regression. RESULTS: During a median follow-up of 22.5 years, a total of 1904 (15.7%) participants developed HF. After adjustment for traditional HF risk factors, 1 unit increase in the baseline VAI was associated with an 8% higher risk of incident HF [hazard ratio (HR): 1.08, 95% confidence interval (CI): 1.06-1.11]. Results were similar when participants were categorized by VAI tertiles. Compared with participants in the lowest tertile of VAI, those in the second tertile and third tertile had a greater risk of incident HF [HR (95% CI): 1.19 (1.05-1.34) and 1.42 (1.26-1.61), respectively]. For the analyses of the HF subtypes, the higher VAI was only associated with the risk of HF with preserved ejection fraction, not with HF with reduced ejection fraction. In addition, the greater VAI was associated with worse LV diastolic function and abnormal LV geometry including concentric remodelling, concentric hypertrophy, and eccentric hypertrophy. CONCLUSION: This study shows that higher VAI was independently associated with the increased risk of incident HF and abnormal LV geometry and LV diastolic dysfunction. We investigated the relationship between visceral adiposity index (VAI) and incident heart failure (HF) in 12 161 participants and further evaluated the possible effect of the VAI on late-life left ventricular (LV) structure and function in 4817 participants who underwent echocardiography examination at Visit 5 in Atherosclerosis Risk in Communities study.Our study found that VAI, a simple alternative indicator of visceral obesity, was positively associated with the risk of HF.Our results shown that VAI was significantly associated with abnormal LV geometry and worse LV diastolic function in late life.
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