Circulation:吡格列酮能否降低缺血性卒中或短暂缺血发作后的ACS风险?

2017-06-12 吴刚 环球医学

胰岛素抵抗在动脉粥样硬化患者中发病率较高,并与心梗(MI)和卒中风险的增加相关。IRIS试验证实,吡格列酮会降低不合并糖尿病的胰岛素抵抗患者近期缺血性卒中或短暂缺血发作后的致命性或非致命性卒中和MI的复合风险。该人群中,心脏事件的类型和严重程度以及吡格列酮对这些事件的影响尚未进行过描述。2017年5月,《Circulation.》的一项研究对此进行分析。

胰岛素抵抗在动脉粥样硬化患者中发病率较高,并与心梗(MI)和卒中风险的增加相关。IRIS试验证实,吡格列酮会降低不合并糖尿病的胰岛素抵抗患者近期缺血性卒中或短暂缺血发作后的致命性或非致命性卒中和MI的复合风险。该人群中,心脏事件的类型和严重程度以及吡格列酮对这些事件的影响尚未进行过描述。2017年5月,《Circulation》的一项研究对此进行分析。

研究人员在IRIS参与者中,进行了与安慰剂相比,吡格列酮对急性冠脉综合征(MI和不稳定心绞痛)影响的二次分析。所有潜在的急性冠脉综合征发作都由独立的临床事件评估委员会以双盲的方式判断。

研究队列由3876名IRIS参与者组成,平均63岁,65%为男性,89%为白人,12%具有冠状动脉疾病史。中位4.8年的随访期,发生了225例急性冠脉综合征事件,包括141例MI和84例不稳定心绞痛发作。MI包括28例(19%)ST段抬高MI。多数MI为1型(94例,65%),其次是2型(45例,32%)。49名患者(35%)中,血清肌钙蛋白为10倍到100倍正常值上限,39名患者(28%)>100倍正常值上限。吡格列酮降低了急性冠脉综合征风险(风险比,0.71;95% CI,0.54~0.94;P=0.02)。吡格列酮也降低1型MI风险(风险比,0.62;95% CI,0.40~0.96;P=0.03),但未降低2型MI风险(风险比,1.05;95% CI,0.58~1.91;P=0.87)。相似的,吡格列酮降低了血清肌钙蛋白>100倍正常值上限患者的大MI风险(风险比,0.44;95% CI,0.22~0.87;P=0.02),但是小MI风险未降低。

结果表明,不合并糖尿病的胰岛素抵抗患者中,吡格列酮降低近期脑血管事件后急性冠脉综合征的风险。吡格列酮在预防特发性1型MI上具有最明显的效果。

原始出处:

Young LH, Viscoli CM, Curtis JP, et al. Cardiac Outcomes After Ischemic Stroke or Transient Ischemic Attack: Effects of Pioglitazone in Patients With Insulin Resistance Without Diabetes Mellitus. Circulation. 2017 May 16;135(20):1882-1893. doi: 10.1161/CIRCULATIONAHA.116.024863. Epub 2017 Feb 28.

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    2017-06-14 yaanren
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