盐酸替罗非班对急性ST段抬高型心肌梗死患者急诊PCI治疗后左心室功能及预后的影响

摘要

目的 探讨急性ST段抬高型心肌梗死(STEMI)患者急诊经皮冠状动脉介入(PCI)治疗时联合应用盐酸替罗非班对心肌灌注、左心室功能、血清高敏C反应蛋白(hs-CRP)水平及预后的影响.方法 连续入选2009年1月至2010年3月确诊为急性STEMI并接受急诊PCI治疗患者96例,完全随机分为试验组和对照组.比较2组患者术后即刻造影结果、术后7 d及60 d左心室功能、90 d主要不良心脏事件(MACE)发生率及治疗前后hs-CRP水平.结果 试验组术后2 h ST段回落＞50%者19例(38.0%)、CK-MB达峰值时间(13±3)h,均优于对照组的12例(26.1%)、(15±2)h,差异均有统计学意义(均P＜0.05).试验组无复流发生率4.0%,明显低于对照组的无复流发生率6.5%(P＜0.05).试验组术后7 d的LVEF、LVEDV均优于对照组,术后60 d的LVEF、LVEDV、LVESV亦均优于对照组,差异均有统计学意义(均P＜0.05).随访60 d内对照组MACE发生率为6.5%,明显高于试验组2.0%,差异有统计学意义(P＜0.05).对照组和试验组用药5 d后hs-CRP水平[(6.4±2.9)mg/L、(4.6±2.6)mg/L]均明显低于用药前[(9.6±2.8)mg/L、(9.8±2.3)mg/L],差异均有统计学意义(均P＜0.05);2组治疗后hs-CRP水平差异亦有统计学意义(P＜0.05).结论 对于急性STEMI患者行急诊PCI联合静脉应用盐酸替罗非班治疗可减少无复流现象的发生,改善心肌水平再灌注状态,改善左心室功能,提高临床预后.盐酸替罗非班能够通过抑制炎性反应从而延缓急性心肌梗死的进程.%Objective To study the effects of primary percutaneous coronary intervention combined with tirofiban therapy on myocardial perfusion and clinical outcomes in patients with acute ST-segment myocardial infarction(STEMI) and to observe the effect of tirofiban hydrochlotide on serum hs2CRP level. Methods Ninty-six consecutive patients with acute STEMI were randomly allocated to either primary PCI combined with tirofiban therapy or primary PCI treatment alone. Baseline characteristics, left ventricular ejection faction, majoradverse cardiac events (MACE) were cospared. Serum hs-CRP leves were determinded by the latex enhanced immunoturbidimetric method. Results The baseline clinical characteristics were comparable between the two groups. The TIMI grade 3 flow was similar between the tirofiban and control groups, but the resolution of sum of ST-segment elevation, peak-value of CK-MB, EF, LVEDD, LVESD, and the MACE rates at 60 days in tirofiban group were better than those in the control group. The level of hs-CRP had no significant difference between two groups before treatment, but after treatment, serum hs-CRP was significantly decreased by tirofiban hydrochloride treatment compared to the control group.Conclusions Adjunctive therapy with tirofiban for patients with acute STEMI who undergo primary PCI can improve reperfusion in the infarction area and clinical outcomes at 60 days. Tirofiban hydrochloride can delay the process of ACS via inhibiting inflammation.