Background: Elevated serum uric acid (SUA) was usually associated with an increased risk of cardiovascular events and mortality in the general population. However, there are few reports concerning the clinical impact and the pathogenic role of uric acid (UA) in hemodialysis (HD) patients. The aim of the study was to investigate the relationship between SUA and various cardiovascular (CV) risk factors in HD patients.
Methods: This retrospective, observational cohort study includes 45 HD patients with a mean age of 51.26 +/- 15.21 years. The differences of the CV risk factors between the patients according to their SUA levels were investigated.
Results: Age, cardiovascular diseases (CVD), increased creatinine, fasting blood glucose (FBG), corrected calcium (cCa), phosphate (P), cCa x P product, and LDL cholesterol levels were associated with lower SUA levels, whereas a higher SUA level was associated with diabetes mellitus (DM), hypertension, and increased triglycerides level (p < 0.01). In multiple regression analysis, history of diabetes (beta = 0.360, p < 0.05), reduced corrected serum calcium (cCa) (beta = -1.456, p < 0.01), and phosphate (P) levels (beta = -1.752, p < 0.01) were predictive of an increased SUA concentration.
Conclusions: Despite what has been demonstrated in the general population and DM patients, a lower SUA level in HD patients was associated with higher cardiovascular risk factors and high co-morbidity burden. Moreover, higher SUA concentrations may be cardioprotective in dialysis patients.
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