Na Li , Yaqi Li , Liufu Cui , Rong Shu , Jiaoyan Li , Haicheng Song , Jierui Wang , Shuohua Chen , Chenrui Zhu , Maoxiang Zhao , Xiang Gao , Tong Liu , Shouling Wu
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Abstract
Background and aims
Uric acid has been positively associated with the risk of developing heart failure in the general population. Nevertheless, it remains unclear whether hyperuricemia is an independent risk factor for heart failure and further contributes to the risk of heart failure among the already at-risk cardiovascular disease (CVD) population. This study aimed to evaluate the association between uric acid and incident heart failure in individuals with established CVD.
Methods and results
Included were 18,438 adults with established CVD but free of heart failure at baseline, from the Kailuan Study. Incident heart failure cases were ascertained by medical records. Cause-specific Cox proportional hazards regression models were applied to estimate hazard ratios (HRs) and 95 % confidence intervals (CIs) of heart failure according to uric acid tertiles. Over a median follow-up of 6.1 years, we identified 1215 incident heart failure cases. Higher uric acid was associated with a higher risk of incident heart failure, with adjusted HR for the last vs. first tertile of 1.50 (95%CI:1.30–1.73). Higher uric acid concentrations were associated with an increased risk of heart failure in individuals with coronary heart disease, atrial fibrillation, and ischemic stroke, but not in those with hemorrhagic stroke. Moreover, the observed association between uric acid and heart failure risk was more pronounced in individuals diagnosed with heart failure with reduced ejection fraction subtype compared with heart failure with preserved ejection fraction.
Conclusions
In individuals with CVD, uric acid was positively associated with the risk of heart failure, in a dose-response manner.
期刊介绍：
Nutrition, Metabolism & Cardiovascular Diseases is a forum designed to focus on the powerful interplay between nutritional and metabolic alterations, and cardiovascular disorders. It aims to be a highly qualified tool to help refine strategies against the nutrition-related epidemics of metabolic and cardiovascular diseases. By presenting original clinical and experimental findings, it introduces readers and authors into a rapidly developing area of clinical and preventive medicine, including also vascular biology. Of particular concern are the origins, the mechanisms and the means to prevent and control diabetes, atherosclerosis, hypertension, and other nutrition-related diseases.
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