The relationship between serum uric acid levels and angiographic severity of coronary heart disease
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KünyeEkici, B., Kütük, U., Alhan, A., & Töre, H. F. (2015). The relationship between serum uric acid levels and angiographic severity of coronary heart disease. Kardiologia Polska, 73(7), 533–538. https://doi.org/10.5603/kp.a2015.0024
Background: Many studies have shown that the serum uric acid (SUA) level is associated with atherosclerosis. Aim: To determine the relationship between the SUA level and the presence and severity of coronary heart disease (CHD). Methods: A total of 705 patients who underwent coronary angiography were included in this study. All patients were assessed for the presence of cardiovascular risk factors and ongoing medications. SUA levels were measured in all patients before the procedure after 12 h of fasting. The severity of CHD was assessed by the SYNTAX score. The independent association between the SUA and the severity of CHD was statistically evaluated using IBM SPSS Statistics 21 for Windows. Results: The mean age of the study population was 60.2 +/- 11.0 years. 252 were female (35.7%) and 453 were male (64.3%). Of the patients, 59.0% had significant CHD, 34.6% had diabetes mellitus, 67.7% had hypertension, 55.3% had hyperlipidaemia, and 45.4% were current smokers. The mean SYNTAX score was 10.6 +/- 12.9. According to the SYNTAX score, 289 of the patients (41%) had normal coronary arteries and non-significant CHD (controls, SYNTAX score: 0), 236 of the patients (33.5%) had mild CHD (SYNTAX score: 1-22), 97 (13.8%) had moderate CHD (SYNTAX score: 23-32), and 83 (11.8%) had severe CHD (SYNTAX score: >= 33). The mean SUA values were 5.3 +/- 1.5 mg/dL in the control group, 5.6 +/- 1.4 mg/dL in the mild CHD group, 6.2 +/- 1.6 mg/dL in the moderate CHD group, and 6.5 +/- 1.7 mg/dL in the severe CHD group. According to Spearman's rho analysis, a positive correlation between the SUA levels and the SYNTAX score was determined to be statistically significant (p < 0.001, r = 0.239; p = 0.002, r = 0.148 in men; p = 0.001, r = 0.204 in women). Conclusions: In this study, we found a positive correlation between the SUA level and the SYNTAX score. Therefore, this routine biochemical test can be used for the evaluation of the severity of CHD besides other risk factors in clinical practice. However, larger scale randomised studies are needed to show the effects of SUA on the severity of CHD.