Abstract

Objective To investigate the correlation between serum uric acid level and severity of coronary artery disease.Methods The concentrations of serum uric acid in 112 patients whom had received coronary arteriongraphy(CAG) was measured,among of them,acute coronary artery syndrome (ACS) with 58 cases( ACS group ),stable angina cordis with 25 cases( stable angina cordis group),non-coronary disease with 29 cases(control group).The severity of coronary artery lesion was evaluated by the number of stenosis vessel and Gensini score.They were divided into control group (29 cases),single vessel lesion group (24 cases),double vessel lesion group(26 cases),triple vessel lesion group(33 cases ) according to the number of stenosis vessel and 0-1 score group(29 cases),2-20 scores group(28 cases),21-40 scores group(30 cases),＞40 scores group (25 cases) according to the Gensini score.Results The concentrations of serum uric acid in ACS group were higher than those in control group and stable angina cordis group[ (369.61 ± 91.97 ) μ mol/Lvs. (298.33 ±92.46),(330.43 ±87.42)μmol/L] (P ＜0.05).The concentrations of serum uric acid in control group were lower than those in single vessel lesion group,double vessel lesion group and triple vessel lesion group [(298.33 ±92.46)μmol/L vs. (331.77 ±86.33),(368.24 ±95.21),(396.82 ±94.45) μ mol/L] (P ＜ 0.05).The concentrations of serum uric acid in single vessel lesion group were significantly lower than those in double vessel lesion group and triple vessel lesion group (P ＜ 0.05 ).The concentrations of serum uric acid in 0-1 score group [ (298.33 ± 92.46) μ mol/L] and 2-20 scores group [ (320.77 ± 86.33 ) μ mol/L ] were respectively lower than those in 21-40 scores group [ (366.61 ± 91.97 ) μ mol/L ] and ＞ 40 scores group [ (402.82 ± 91.97 ) μ mol/L] (P ＜ 0.05 ).The concentrations of serum uric acid in ＞ 40 scores group was higher than that in 21-40 scores group (P ＜ 0.05 ).Serum uric acid concentrations was positively correlated with the log of Gensini score (r =0.348,P ＜ 0.05 ).Conclusion The increase in serum uric acid might reflect increase in severity of coronary artery stenosis. Key words: Coronary disease; Uric acid; Gensini coronary score

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