NEJM:在大冠状动脉中药物洗脱支架与裸金属支架的比较

2010-12-29 MedSci原创 MedSci原创

  背景 最近的数据已经表明,有大动脉冠状动脉病的病人,在采用第一代药物洗脱支架进行经皮介入治疗后,发生迟发性心脏事件的危险较采用裸金属支架者升高。我们试图证实这种观察结果,并评估这种事件危险的升高是否也见于采用第二代药物洗脱支架治疗时。   方法 我们将2314例需要置入直径≥3.0 mm支架的病人,随机分配接受西罗莫司洗脱支架、依维莫司洗脱支架或裸金属支架治疗。主要终点是2年时由心源性死亡

  背景 最近的数据已经表明,有大动脉冠状动脉病的病人,在采用第一代药物洗脱支架进行经皮介入治疗后,发生迟发性心脏事件的危险较采用裸金属支架者升高。我们试图证实这种观察结果,并评估这种事件危险的升高是否也见于采用第二代药物洗脱支架治疗时。

  方法 我们将2314例需要置入直径≥3.0 mm支架的病人,随机分配接受西罗莫司洗脱支架、依维莫司洗脱支架或裸金属支架治疗。主要终点是2年时由心源性死亡或非致死性心肌梗死组成的复合终点。迟发性事件(发生于7~24个月)和靶血管血运重建是主要的次要终点。

  结果 主要终点的发生率在接受西罗莫司洗脱支架的病人中为2.6%,在接受依维莫司洗脱支架的病人中为3.2%,在接受裸金属支架的病人中为4.8%,在接受药物洗脱支架与接受裸金属支架的病人之间没有显著差异。迟发性事件的发生率或死亡、心肌梗死或支架血栓形成的发生率也没有显著组间差异。与心肌梗死无关的靶血管血运重建率,在接受西罗莫司洗脱支架的病人中为3.7%,在接受依维莫司洗脱支架的病人中为3.1%,在接受裸金属支架的病人中为8.9%。与接受裸金属支架的病人相比,接受任何一种药物洗脱支架的病人靶血管血运重建率都显著降低,并且两种类型的药物洗脱支架之间没有显著差异。

  结论 在大冠状动脉需要置入支架的病人中,西罗莫司洗脱支架、依维莫司洗脱支架和裸金属支架之间,在死亡或心肌梗死发生率方面无显著差异。采用这两种药物洗脱支架治疗观察到靶血管血运重建率下降程度相似。

  (N Engl J Med 2010; 2310-9,December 9,2010)

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    2011-10-15 gous
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