直接经皮冠状动脉介入治疗前即刻应用大剂量阿托伐他汀对心肌再灌注损伤和心功能的影响The effect of loading dose atorvastatin administration shortly before P-PCI on myocardial reperfusion and cardiac function
任美欣,严松彪,陈晖
摘要(Abstract):
目的探讨直接经皮冠状动脉介入治疗(PPCI)前超短期(1~2h)应用大剂量阿托伐他汀(80mg)对急性ST段抬高心肌梗死(STEMI)患者心肌缺血/再灌注损伤(I/R)的作用及短期预后的影响。方法入选85例行PPCI的STEMI患者,按照随机数字表法分为两组,他汀组(再灌注前1~2h给予阿托伐他汀80mg)36例和对照组49例。测定发病后CK-MB、cTnT峰值和达峰时间。于血管再通后测定TIMI血流分级(TFG)、TIMI血流帧数计数(TFC)和校正的TFC(CTFC)以及心肌呈色分级(MBG)。分别于入心内科重症监护病房(CCU)后第1天及发病后1个月行超声心动图检查(UCG),应用Simpson's法测定左心室射血分数(LVEF)。试验主要终点为30天主要不良心血管事件的发生。结果两组患者基础资料差异无统计学意义。与对照组相比,他汀组的CK-MB峰值降低,差异具有统计学意义[(252.11±206.13)U/L比(345.88±242.51)U/L,t=1.922,P=0.047]。两组患者入院UCG检查各项指标差异均无统计学意义,他汀组与对照组相比1个月时LVEF升高,但差异无统计学意义(0.62比0.58,t=-1.907,P=0.050)。结论 PPCI前超短期应用大剂量阿托伐他汀可以减轻心肌缺血再灌注损伤。阿托伐他汀预处理有可能改善急性心肌梗死(AMI)患者心功能。
关键词(KeyWords): 血管成形术,经腔,经皮冠状动脉;阿托伐他汀;心肌再灌注损伤;心室功能
基金项目(Foundation):
作者(Author): 任美欣,严松彪,陈晖
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