Circulation:稳定性缺血性心脏病应用vorapaxar治疗的有效性和安全性

2016-10-29 MedSci MedSci原创

背景:稳定的缺血性心脏病和以前的心肌梗死(MI)患者再发心血管事件的风险有所不同。动脉粥样硬化风险评估可以识别高危患者,这些患者强化二级预防可能有更多的回忆,比如vorapaxar治疗。方法: 在TRA 2°P-TIMI50研究中,研究者对8598例稳定,安慰剂治疗的既往心肌梗死的患者,随访2.5年(中位数),动脉粥样硬化风险独立临床指标。在无卒中或短暂性脑缺血发作的既往心肌梗死患者(有Vorap

背景:稳定的缺血性心脏病和以前的心肌梗死(MI)患者再发心血管事件的风险有所不同。动脉粥样硬化风险评估可以识别高危患者,这些患者强化二级预防可能有更多的回忆,比如vorapaxar治疗。

方法: 在TRA 2°P-TIMI50研究中,研究者对8598例稳定,安慰剂治疗的既往心肌梗死的患者,随访2.5年(中位数),动脉粥样硬化风险独立临床指标。在无卒中或短暂性脑缺血发作的既往心肌梗死患者(有Vorapaxar临床指征)的基线风险评估vorapaxar的安全性和有效性。研究发现在的安慰剂治疗的患者有随访 [凝血酶受体拮抗剂在动脉粥样硬化缺血性事件的TIMI 50 ]二级预防。安全疗效(SCH 530348;mk-5348)进行基线风险患者既往心肌梗死之的人。终点为心血管死亡、MI或缺血性卒中和GUSTO严重出血。

结果:9个独立的危险因素是年龄、糖尿病高血压、吸烟、外周动脉疾病、既往卒中、既往的冠状动脉旁路移植术、心力衰竭和肾功能不全。根据这些预测因子简单的分析显示心血管死亡/MI/缺血性卒中和个别因素呈强相关性。高危患者(风险指标≥3;占人口20%)应用vorapaxar心血管死亡/MI/缺血性卒中绝对风险降低3.2%。中等风险的患者(风险指标1-2;61%)绝对风险降低2.1%,转换成NNT为31和 48。各风险组出血风险增加;应用vorapaxar
各风险组净临床预后显著改善。高危患者两种治疗方法,致死性出血或颅内出血为0.9%。

结论:基线动脉粥样硬化危险分层可以帮助制定治疗决策:MI后是否应用vorapaxar进行二级预防。

原始出处:

Bohula EA, Bonaca MP, et al. Atherothrombotic Risk Stratification and the Efficacy and Safety of Vorapaxar in Patients With Stable Ischemic Heart Disease and Previous Myocardial Infarction. Circulation. 2016 Jul 26.


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