目的:探讨老年冠心病人纤维蛋白原与冠脉狭窄程度的相关性.方法:选择冠状动脉造影明确诊断为冠心病且年龄>65岁的患者112例(冠心病组),并选择同期住院非冠心病病人108例为非冠心病组,冠心病组按照冠脉造影结果分为单支病变(30例)及多支病变组(82例).检测入选患者血清纤维蛋白原(Fg)、D二聚体(D-D)、C反应蛋白(CRP)、同型半胱氨酸(Hcy)、脑钠肽(BNP)等水平.并分析血清Fg水平与冠心病患者 Gensini评分的相关性.结果:与非冠心病组比较,冠心病组血清Fg、D-D、甘油三酯(TG)、载脂蛋白B(ApoB)、脂蛋白a、CRP、BNP、Hcy水平明显升高(P均=0.001);且在冠心病组中,与单支病变组比较,多支病变组血清 Fg、D-D、ApoB、尿酸、脂蛋白a、CRP、BNP、Hcy水平明显升高;血清高密度脂蛋白-胆固醇、ApoA1、载脂蛋白A1/载脂蛋白B(ApoA1/ApoB)水平明显降低(P<0.05或<0.01);血清 Fg水平与冠脉狭窄程度(Gensini评分)呈显著正相关(r=0.303,P=0.001).Fg是冠心病的独立危险因素(OR=2.74,95% CI:1.95~3.97,P=0.001).结论:老年冠心病患者纤维蛋白原水平与冠脉狭窄程度呈显著正相关,其促发动脉粥样硬化的机制可能与脂代谢紊乱、高同型半胱氨酸血症、炎症反应等危险因素有关.%Objective:To explore correlation between fibrinogen(Fg)level and coronary stenotic degree in aged coronary heart disease(CHD)people and its possible pathogenesis.Methods:A total of 112 patients,who were >65 years and diag-nosed as CHD by coronary angiography(CAG),were selected as CHD group.Another 108 non-CHD patients hospitalized during the same period were enrolled as non-CHD group.According to CAG results,CHD group was divided into single vessel coronary disease group(n=30,single vessel group)and multi vessel coronary disease group(n= 82,multi vessel group).Serum levels of Fg,D-dimer(D-D),C reactive protein(CRP),homocysteine(Hcy)and brain natriuretic peptide (BNP)were measured and compared between two groups.The correlation between serum Fg level and Gensini score was analyzed in CHD patients.Results:Compared with non-CHD group,there were significant rise in serum levels of Fg,D-D, triglyceride(TG),apolipoprotein B(ApoB),lipoprotein a,CRP,BNP and Hcy in CHD group,P=0.001 all;in CHD group,compared with single vessel group,there were significant rise in serum levels of Fg,D-D,ApoB,uric acid,lipo-protein a,CRP,BNP,Hcy,and significant reductions in serum levels of high density lipoprotein cholesterol,ApoA1 and ApoA1/ApoB in multi vessel group,P<0.05 or <0.01. Serum Fg level was significant positively correlated with coronary stenotic degree(Gensini score),r=0.303,P=0.001. Fg was independent risk factor of CHD(OR=2.74,95% CI:1.95~3.97,P=0.001).Conclusion:Serum Fg level is significant positively correlated with coronary stenotic degree in aged CHD patients.Its mechanism of triggering atherosclerosis may be related to risk factors such as dyslipidemia,hyper-homocysteinemia and inflammations etc.
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