应用血栓弹力图评价氯吡格雷血药浓度与凝血功能的相关性
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篇名: 应用血栓弹力图评价氯吡格雷血药浓度与凝血功能的相关性
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摘要: 目的:考察氯吡格雷血药浓度与凝血功能的相关性。方法:选择我院2014年6月-2015年6月经皮冠状动脉介入治疗术后的急性冠状动脉综合征患者126例,术前服用维持剂量(硫酸氢氯吡格雷75 mg+阿司匹林100 mg),qd,连续服用5 d;术前1 d顿服负荷剂量(硫酸氢氯吡格雷300 mg+阿司匹林100 mg);术后继续服用维持剂量。于术后服用维持剂量的第2日,采用液相色谱-串联质谱法测定患者体内氯吡格雷的血药浓度,采用血栓弹力图仪测定患者血凝块形成时间[第一块纤维蛋白凝块形成的时间(R)+血凝块强度达到20 mm振幅的时间(K)]、纤维蛋白和血凝块加固速度(以Angle表示)及纤维蛋白凝块最终强度(MA),采用Pearson检验进行相关性分析。结果:患者体内氯吡格雷的平均血药浓度为(82.3±20.1)ng/L,(R+K)为(7.8±2.4)min,Angle为(64.1±8.7)°,MA为(60.7±7.2)mm;氯吡格雷血药浓度与(R+K)呈正相关(r=0.671,P<0.01),与Angle呈负相关(r=-0.556,P<0.01),与MA不相关(r=-0.073,P>0.05)。结论:随着氯吡格雷血药浓度的升高,(R+K)延长,而纤维蛋白和血凝块加固速度降低。
ABSTRACT: OBJECTIVE: To investigate the correlation of plasma concentrations of clopidogrel with coagulation function. METHODS: 126 acute coronary syndrome (ACS) patients underwent PCI were selected from our hospital during Jun. 2014-Jun. 2015. They were given maintenance dose (clopidogrel hydrogen sulfate 75 mg+aspirin 100 mg) before operation, qd, for consecutive 5 d; given loading dose (clopidogrel hydrogen sulfate 300 mg+aspirin 100 mg) at a draught one day before operation; given maintenance dose again after operation. On the second day of giving maintenance dose after operation, plasma concentration of clopidogrel was determined by LC-MS/MS; thrombelastography (TEG) was used to determine blood clot formation time [the formation time of first piece fibrae sanguis (R)+the time of blood clot strength reaching 20 mm (K)], fibrae sanguis and blood clot consolidation time (expressed by Angle) and fibrae sanguis and blood clot final strength (MA). Pearson test was adopted for relationship analysis. RESULTS: Average plasma concentration of clopidogrel was (82.3±20.1) ng/L, (R+K) was (7.8±2.4) min, Angle was (64.1±8.7)° and MA was (60.7±7.2) mm. Plasma concentration of clopidogrel was positively correlated with (R+K) (r=0.671, P<0.01) and negatively correlated with Angle (r=-0.556, P<0.01). There was no correlation between plasma concentration of clopidogrel and MA (r=-0.073,P>0.05). CONCLUSIONS: As plasma concentration of clopidogrel increased, blood clot formation time prolonged while fibrae sanguis and blood clot consolidation speed decreased.
期刊: 2016年第27卷第14期
作者: 万盟,朱余兵,叶飞,邹建军,张倩,张雪萌,陶宜富
AUTHORS: WAN Meng,ZHU Yubing,YE Fei,ZOU Jianjun,ZHANG Qian,ZHANG Xuemeng,TAO Yifu
关键字: 血栓弹力图;氯吡格雷;液相色谱-串联质谱法;血药浓度;相关性
KEYWORDS: Thrombelastography; Clopidogrel; LC-MS/MS; Plasma concentration; Correlation
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