超敏C-反应蛋白、血尿酸与不同危险分层急性非ST段抬高型冠脉综合征患者的相关性研究
周祖勇 梁金花 周红辉
广东省鹤山市人民医院心内科,广东鹤山 529700
[摘要]目的 探讨血尿酸(SUA)和超敏C-反应蛋白(hs-CRP)与不同危险分层急性非ST段抬高型急性冠脉综合征(NSTEACS)的关系。方法选取2013年6月~2015年6月我院收治确诊的NSTEACS患者78例作为观察组,其中NSTEACS低危组24例,中危组27例,高危组27例。选取我院同期住院排除冠心病的患者52例作为对照组。所有患者在入院后第2天清晨采空腹静脉血或急诊冠状动脉造影术前采静脉血,检测各组患者SUA、hs-CRP水平。结果SUA和hs-CRP水平随着NSTEACS患者危险分层的增高而升高。两者在高危组中水平均最高;高、中危组SUA、hs-CRP水平与低危组及对照组比较,差异有统计学意义(P<0.05)。低危组的SUA水平与对照组比较,差异有统计学意义(P<0.05)。低危组的hs-CRP水平与对照组比较,差异无统计学意义(P>0.05)。SUA和hs-CRP水平与不同危险分层NSTEACS呈正相关 (r1=0.528、r2=0.446,P均<0.05)。结论SUA、hs-CRP水平与不同危险分层NSTEACS密切相关。检测SUA、hs-CRP水平对不同危险分层NSTEACS患者病情程度评估有重要参考价值。
[关键词]急性非ST段抬高型急性冠脉综合征;血尿酸;超敏C-反应蛋白
冠状动脉粥样硬化性心脏病除了与传统危险因素如高血压、糖尿病、血脂异常、年龄、吸烟等明确有关外,近年来一些新的危险因素如血尿酸(serum uric acid,SUA)、超敏C-反应蛋白(high sensitive C-reactive protein,hs-CRP)、高同型半胱氨酸等相继提出并被逐渐重视[1-2]。但对SUA及hs-CRP在不同危险分层急性非ST段抬高型急性冠脉综合征(non-ST-elevation acute coronary syndrome,NSTEACS)患者中的浓度关系尚未见报道,本研究检测不同危险分层NSTEACS患者中的SUA和hs-CRP水平,探讨两者水平与NSTEACS病情的相关性。
1 资料与方法
1.1一般资料
选取2013年6月~2015年6月我院心内科住院患者 78例,诊断标准符合相关文献[3]标准,依据NSTEACS危险性分层原则将其分为低危、中危、高危组。其中高危27例(男17例、女10例)、中危27例(男19例、女8例)、低危24例(男15例、女9例)。各组平均年龄分别为 (67.58±9.65)、(66.14±12.95)、(62.38±9.26)岁。另选取我院同期住院排除冠心病的患者52例为对照组,平均年龄(60.24±12.42)岁。排除标准:心、中重度肾、肝功能不全,感染性疾病,自身免疫性疾病,各种类型肾病,痛风等患者。各组入选病例在年龄、性别上比较,差异无统计学意义(P>0.05),具有可比性。
1.2检测方法
所有患者在入院后第2天清晨采空腹静脉血或急诊冠脉造影术前采静脉血,采用尿酸酶法检测SUA,采用胶乳免疫增强比浊法测定hs-CRP。均在Olympus Au640全自动生化分析仪上完成。所有入选病例采血检验均由专人负责。
1.3统计学方法
采用SPSS 11.5统计软件对数据进行分析,计量资料采用均数±标准差表示,多组间均数比较采用单因素方差分析(ANOVA),其两两比较用LSD检验;两者相关性采用Pearson相关分析。以P<0.05为差异有统计学意义。
2 结果
2.1各组患者SUA、hs-CRP水平的比较
高危组、中危组及低危组SUA、hs-CRP水平有明显不同。高危组的SUA、hs-CRP水平均最高,高危组、中危组SUA、hs-CRP水平与对照组比较,差异有统计学意义(P<0.05)。低危组的SUA水平与对照组比较,差异有统计学意义(P<0.05)。低危组中hs-CRP水平与对照组比较,差异无统计学意义(P>0.05)(表1)。
表1 各组患者SUA、hs-CRP水平的比较

 
与其他三组比较,aP<0.05;与对照组比较,bP<0.05
2.2相关性分析
不同危险分层NSTEACS患者的中的SUA、hs-CRP水平经 Pearson相关性检验,两者水平均与NSTEACS患者危险分层呈明显正相关 (r1=0.528、r2= 0446,P均<0.05)。
3 讨论
冠心病的发生除了与传统危险因素如年龄、性别、家族史、血脂异常、吸烟、高血压、糖尿病、超重、肥胖等有关外,近年来关于炎症因子与冠心病关系的研究多有报道,急性冠状动脉综合征作为冠心病的一种其发生与持续存在的炎症刺激有关[4],炎症反应促进了动脉粥样硬化的发生和发展。SUA、hs-CRP与炎症因子呈明显相关性,与冠心病发生病理、生理机制有密切相关性[5-6],表明SUA、hs-CRP是冠心病发生的重要危险因素。SUA水平升高致动脉粥样硬化可能通过以下机制:①升高的SUA促进低密度脂蛋白胆固醇的氧化和脂质的过氧化,氧化过程中伴随氧自由基生成增加并参与炎症反应[7],后者在动脉硬化形成过程中起关键性作用;②升高的SUA促进血小板聚集,从而促进冠状动脉血栓形成;③尿酸在血液中的物理溶解度很低,高尿酸血症时尿酸盐结晶,易析出,沉积于血管壁,直接损伤血管内膜,诱发和加重动脉粥样硬化[8-9]。本研究结果表明,SUA水平在不同危险分层NSTEACS患者中明显不同。随着危险分层的增高,其水平值也随之增高,高危组水平明显高于中、低危组及对照组,差异有统计学意义(P<0.05),中、低危组与对照组比较,差异有统计学意义 (P均<0.05),说明SUA水平与NSTEACS危险程度高度相关,与近年来国外许多研究[10-12]结果相一致,证实SUA增高是冠心病的危险因素之一。
多项研究[13-14]报道,血清中hs-CRP水平升高与冠心病的发生、发展有关。在某种程度上,hs-CRP水平在判定急性冠状动脉综合征的预后上较血肌钙蛋白T更有预测价值[15]。本研究结果显示,NSTEACS患者hs-CRP水平随着危险分层级别增高,其水平值也增高。高危组中hs-CRP水平最高,与其他组比较,差异有统计学意义。中危组hs-CRP也明显高于低危及对照组,提示hs-CRP长期处于高水平可促进冠心病发生及进展。低危组hs-CRP水平与对照组比较,虽其水平高于对照组,但两者比较差异无统计学意义,其可能与低危患者冠状动脉病变处炎症反应较轻有关。SUA和hs-CRP水平与不同危险分层NSTEACS患者均呈明显正相关性 (r1=0.528、r2=0.446,P均<0.05),说明两者水平与不同危险分层NSTEACS密切相关。
综上所述,不同危险分层NSTEACS与SUA、hs-CRP水平密切相关。检测SUA、hs-CRP水平对不同危险分层NSTEACS患者的病情程度评估有重要参考价值。
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Correlation Study of hs-CRP,SUA and different risk stratification of patients with non-ST-elevation acute coronary syndromes
ZHOU Zu-yong LIANG Jin-hua ZHOU Hong-hui
Department of Internal Medicine-Cardiovascular,People′s Hospital of Heshan City in Guangdong Province,Heshan 529700,China
[Abstract]Objective To investigate the relationship between serum uric acid(SUA),high-sensitive C-reactive protein (hs-CRP)and different risk stratification of patients with non-ST-elevation acute coronary syndrome(NSTEACS). Methods Altogether 78 cases of confirmed NSTEACS patients who had been treated in our hospital from June 2013 to June 2015 were selected as observation group,including 24 cases in the low risk group,27 cases in middle risk group and 27 cases in high risk group.Meanwhile,52 cases of hospitalized patients with coronary heart diseases in the same period were selected as control group.Fasting venous blood was drawn from all the patients in the early morning of the 2nd day after their admission or before emergency coronary angiography for detection of SUA and hs-CRP levels in both groups.Results The level of SUA and hs-CRP increased in the higher risk stratification of NSTEACS patients,and was the highest in high risk group.The level of SUA and hs-CRP in both high and middle risk groups was significantly higher than that in low risk group and control group respectively(P<0.05).There was also significant difference in SUA level between low risk group and control group(P<0.05).Compared with that of control group,the level of hs-CRP in low risk group was higher but without significant difference between the two groups(P>0.05).SUA and hs-CRP levels were significantly positively correlated with different risk stratification of NSTEACS (r1=0.528,r2=0.446,P<0.05).Conclusion The levels of hs-CRP and SUA are closely related to the different risk stratification of NSTEACS patients.Therefore,the detection of SUA and hs-CRP levels in different risk stratification of NSTEACS patients has important reference significance in assessment of the patients′conditions.
[Key words]Non-ST-elevation acute coronary syndrome;Serum uric acid;High-sensitive C-reactive protein
[中图分类号]R541.4
[文献标识码]A
[文章编号]1674-4721(2016)07(a)-0050-03
[基金项目]广东省临床用药研究基金(2013X46)
[作者简介]周祖勇,男,副主任医师,研究方向:心血管疾病的防治
(收稿日期:2016-04-21本文编辑:王红双)