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NEJM:药物洗脱支架PCI 或冠脉旁路移植术(CABG)后的生活质量比较

2011-04-05 MedSci原创 MedSci原创

MedSci评论:临床采用CABG,以及药物洗脱支架(DES)用于PCI,已很普通,但是本文选择的角度很特别,这也就是创新性:(1)多血管病变!(2)CABG与DES支架PCI进行对比;(3)随机对照;(4)大样本;(5)有12个月的随访评价;(6)评价的标准为SAQ,SF-36。当然,如果有必要的话,还可以采用3.0 MRI进行终点评价,从影像学角度进一步证实,这样会更有说服力(不过用MRI作为

MedSci评论:临床采用CABG,以及药物洗脱支架(DES)用于PCI,已很普通,但是本文选择的角度很特别,这也就是创新性:(1)多血管病变!(2)CABG与DES支架PCI进行对比;(3)随机对照;(4)大样本;(5)有12个月的随访评价;(6)评价的标准为SAQ,SF-36。当然,如果有必要的话,还可以采用3.0 MRI进行终点评价,从影像学角度进一步证实,这样会更有说服力(不过用MRI作为评价,成本会提升)。

  背景 既往研究显示,与采用球囊血管成形术或置入裸金属支架的经皮冠状动脉介入治疗(PCI)相比,接受多支血管血运重建、冠脉旁路移植术(CABG)的患者心绞痛缓解程度更大,且生活质量获得改善。但置入药物洗脱支架(DES)的PCI对上述转归的影响尚不清楚。

  方法 在一项大规模随机临床试验中,我们分配1800例存在冠状动脉3支血管或左主干病变的患者接受 CABG(897例患者)或紫杉醇洗脱支架PCI(903例患者)治疗。在基线和1、6、12个月时,使用西雅图心绞痛问卷(SAQ)和医学转归研究36 项简易健康调查表(SF-36)评估健康相关生活质量。主要终点是SAQ心绞痛频率亚表评分(评分范围为0~100分,评分校高提示健康状态较好)。

  结果 在6和12个月时,两组的SAQ和 SF-36亚表评分均显著高于基线。在6和12个月时,CABG 组SAQ心绞痛频率亚表评分的增幅大于PCI组(分别为P=0.04和 P=0.03),但组间差异小(2个时间点的平均治疗效应为1.7)。在1和6个月时,两组无心绞痛患者比例相似,12个月时,CABG组无心绞痛患者比例高于PCI组(76.3%对71.6%,P=0.05)。整个随访期间,所有其他SAQ和SF-36亚表评分为PCI组较高(主要在1个月时)或两组相似。

  结论 在存在冠状动脉3支血管或左主干病变的患者中,术后6个月和12个月时,CABG组心绞痛缓解程度大于PCI组,不过获益程度较小。

  (N Engl J Med 2011; 364:1016-26. March 17, 2011)

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    2011-08-31 cy0324
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