JAMA N:卒中二级预防,吡格列酮对高风险者更加有效

2017-12-07 杨中华 脑血管病及重症文献导读

缺血性卒中或TIA处于脑血管和心血管事件复发的高风险之中。目前预防是唯一有效的方法,包括抗血小板药物、颈动脉血运重建、抗凝、控制血压、降脂。2016年IRIS试验发现在标准二级预防的基础上增加吡格列酮(胰岛素增敏剂)能够把卒中或心肌梗死的风险再降低24%。虽然耐受性较好,但是吡格列酮会增加体重、引起外周水肿以及增加骨折的风险。因此,临床医师使用吡格列酮时应该仔细衡量获益和风险。


缺血性卒中或TIA处于脑血管和心血管事件复发的高风险之中。目前预防是唯一有效的方法,包括抗血小板药物、颈动脉血运重建、抗凝、控制血压、降脂。2016年IRIS试验发现在标准二级预防的基础上增加吡格列酮(胰岛素增敏剂)能够把卒中或心肌梗死的风险再降低24%。虽然耐受性较好,但是吡格列酮会增加体重、引起外周水肿以及增加骨折的风险。因此,临床医师使用吡格列酮时应该仔细衡量获益和风险。

2017年11月来自耶鲁医学院的Walter N. Kernan等在JAMA Neurology上公布了IRIS试验的二次分析结果,目的在于验乞在合并胰岛素抵抗的缺血性卒中或TIA患者中较高卒中或心梗风险的患者更能够从吡格列酮中获益(vs 低风险)。

IRIS为双盲安慰剂对照卒中二级预防试验,研究对象来自于7个国家179家研究中心,评价随访4.1年。纳入标准包括180天内卒中或TIA,存在胰岛素抵抗,无1型或2型糖尿病

对于低基线风险者,吡格列酮组和安慰剂组5年卒中或心梗的风险分别为6%和7.9%(absolute risk difference, –1.9% ;95% CI –4.4% to 0.6%)。在高基线风险的患者中,吡格列酮组和安慰剂组5年卒中或心梗的风险分别为14.7%和19.6%(absolute risk difference, –4.9% ;95% CI, –8.6% to 1.2%)。低于或高于平均风险的危害比(Hazard ratios)相似(0.77 vs 0.75; P = 0.92)。高风险的患者中,吡格列酮增加体重的风险较小,但是增加骨折的风险较高。

最终作者认为缺血性卒中或TIA后,与卒中或心梗低风险者相比高风险患者从吡格列酮治疗中绝对获益更大。不过,骨折的风险仍旧很高。

原始出处:

Kernan WN1, Viscoli CM1, Dearborn JL,et al.Targeting Pioglitazone Hydrochloride Therapy After Stroke or Transient Ischemic Attack According to Pretreatment Risk for Stroke or Myocardial Infarction.JAMA Neurol. 2017 Nov 1;74(11):1319-1327. doi: 10.1001/jamaneurol.2017.2136.

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    2017-12-07 131****1460

    学习了受益匪浅

    0

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    2017-12-07 惠映实验室

    学习了.药物多用途.

    0

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    2017-12-07 1ddf0692m34(暂无匿称)

    学习了.涨知识

    0

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    2017-12-07 sunfeifeiyang

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