JACC:急性心肌梗死后β受体阻滞剂的剂量对生存率的影响

2015-09-22 崔倩 译 MedSci原创

急性心肌梗死(MI)后的β受体阻滞剂治疗可提高生存率。在临床实践中使用β受体阻滞剂的剂量往往比那些在随机试验确定其使用效果的剂量大大降低。该研究评估了急性心肌梗死后β受体阻滞剂的剂量与生存的关系,假设到了高剂量的β受体阻滞剂治疗将提高生存率。一个多中心注册登记了连续7057例急性心肌梗死患者。研究人员将出院后β受体阻滞剂剂量索引到在随机临床试验中使用的目标的β受体阻滞剂剂量,分组为>0%至1

急性心肌梗死(MI)后的β受体阻滞剂治疗可提高生存率。在临床实践中使用β受体阻滞剂的剂量往往比那些在随机试验确定其使用效果的剂量大大降低。

该研究评估了急性心肌梗死后β受体阻滞剂的剂量与生存的关系,假设高剂量的β受体阻滞剂治疗将提高生存率。

一个多中心注册登记了连续7057例急性心肌梗死患者。研究人员将出院后β受体阻滞剂剂量索引到在随机临床试验中使用的目标的β受体阻滞剂剂量,分组为>0%至12.5%,>12.5%至25%,>25%至50%,和目标剂量的>50%。研究人员对重要地点进行了随访评估,主要终点是2年的死亡率。研究人员使用多变量和倾向性评分分析来考虑群体差异。

共有6682例患者接受随访(中位数2.1年),91.5%的患者出院后服用β受体阻滞剂(平均剂量是目标剂量38.1%)。与无β受体阻滞剂治疗组相比,全β-阻断剂的剂量组的死亡率最低(P <0.0002)。多因素调整后,与>50%的剂量相比,对于>0%至12.5%,>12.5%至25%,和> 25%至50%的目标剂量组,2年死亡率风险比分别为0.862(95%可信区间(Cl):0.677到1.098),0.799(95%Cl:0.635到1.005),以及0.963(95% Cl:0.765到1.213)。扩展的协变量和倾向得分分析的多变量分析也表明,较高对剂量并没有和更好的结果相关。

与使用低剂量相比,这些数据没有表现出患者使用接近以前的随机临床试验中β受体阻滞剂剂量就可增加生存率。这些发现为制定MI后给予患者适当的β-阻断剂剂量提供了重新进行研究的理论基础,进而希望能达到这个疗法的最大益处。

原始出处:

Jeffrey J. Goldberger, Robert O. Bonow, Michael Cuffe,et al.Effect of Beta-Blocker Dose on Survival After Acute Myocardial Infarction,JACC,2015.9.22

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    2016-02-28 hbwxf
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    2015-11-13 zhyy88
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  7. [GetPortalCommentsPageByObjectIdResponse(id=1995120, encodeId=cbde199512030, content=<a href='/topic/show?id=347538040cf' target=_blank style='color:#2F92EE;'>#受体阻滞剂#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=27, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=38040, encryptionId=347538040cf, topicName=受体阻滞剂)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=54f9127, createdName=tulenzi, createdTime=Fri Apr 22 06:32:00 CST 2016, time=2016-04-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1853414, encodeId=986e185341400, content=<a href='/topic/show?id=48351020537' target=_blank style='color:#2F92EE;'>#JACC#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=26, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=10205, encryptionId=48351020537, topicName=JACC)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=55ce62, createdName=hbwxf, createdTime=Sun Feb 28 23:32:00 CST 2016, time=2016-02-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2085716, encodeId=a2c32085e16ab, content=<a href='/topic/show?id=723a9e69383' target=_blank style='color:#2F92EE;'>#阻滞剂#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=25, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=97693, encryptionId=723a9e69383, topicName=阻滞剂)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=40be178, createdName=zhyy88, createdTime=Fri Nov 13 03:32:00 CST 2015, time=2015-11-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1256519, encodeId=6cc71256519cb, content=<a href='/topic/show?id=43706900963' target=_blank style='color:#2F92EE;'>#生存率#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=30, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=69009, encryptionId=43706900963, topicName=生存率)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=6a6043, createdName=guoyibin, createdTime=Thu Sep 24 05:32:00 CST 2015, time=2015-09-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1274932, encodeId=1d3512e493214, content=<a href='/topic/show?id=338c19228b0' target=_blank style='color:#2F92EE;'>#β受体阻滞剂#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=25, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=19228, encryptionId=338c19228b0, topicName=β受体阻滞剂)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=685a124, createdName=muzishouyi, createdTime=Thu Sep 24 05:32:00 CST 2015, time=2015-09-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1325107, encodeId=b63c132510edd, content=<a href='/topic/show?id=96c71804b7' target=_blank style='color:#2F92EE;'>#ACC#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=26, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=1804, encryptionId=96c71804b7, topicName=ACC)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=1e452500029, createdName=12498568m50暂无昵称, createdTime=Thu Sep 24 05:32:00 CST 2015, time=2015-09-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=37195, encodeId=7c143e19570, content=解读EMPA-REG OUTCOME研究 作者:河北省人民医院 郭艺芳 在2015年EASD年会期间,揭晓了举世瞩目的降糖治疗试验EMPA-REG OUTCOME研究结果。, beContent=null, objectType=article, channel=null, level=null, likeNumber=117, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cacheapi.medsci.cn/resource/upload/20150920/IMG55FDE671A89482379.jpg, createdBy=cef3108336, createdName=x35042875, createdTime=Wed Sep 23 22:06:00 CST 2015, time=2015-09-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=37196, encodeId=161f3e196e1, content=解读EMPA-REG OUTCOME研究 作者:河北省人民医院 郭艺芳 在2015年EASD年会期间,揭晓了举世瞩目的降糖治疗试验EMPA-REG OUTCOME研究结果。, beContent=null, objectType=article, channel=null, level=null, likeNumber=176, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cacheapi.medsci.cn/resource/upload/20150920/IMG55FDE671A89482379.jpg, createdBy=cef3108336, createdName=x35042875, createdTime=Wed Sep 23 22:06:00 CST 2015, time=2015-09-23, status=1, ipAttribution=)]
    2015-09-23 x35042875

    解读EMPA-REG OUTCOME研究 作者:河北省人民医院 郭艺芳 在2015年EASD年会期间,揭晓了举世瞩目的降糖治疗试验EMPA-REG OUTCOME研究结果。

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    2015-09-23 x35042875

    解读EMPA-REG OUTCOME研究 作者:河北省人民医院 郭艺芳 在2015年EASD年会期间,揭晓了举世瞩目的降糖治疗试验EMPA-REG OUTCOME研究结果。

    0

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一、病理生理学 1. 肥胖悖论 尽管肥胖已心血管事件的公认危险因素,但最近几项研究都提出“肥胖悖论”。“肥胖悖论”是指肥胖人群与瘦人相比,心血管疾病预后结局更佳。特别值得一提的是,Angera等人提取了SCAAR研究中因急性冠脉综合征(ACS)接受冠状动脉造影的64436名患者的数据,结果显示,体重指数和死亡率之间的关系呈U形。 这些数据表明肥胖可带来相关的保护机制,

NEJM:急性心肌梗死在PCI前使用环孢素没有得到更好的临床效果

实验和临床证据表明,环孢素可以减轻再灌注损伤以及减少心肌梗死面积。该研究的目的是测试环孢素是否能提高临床疗效,防止不良左室重构。在一项多中心,双盲,随机试验中,研究人员分配970例急性前壁ST段抬高心肌梗死(STEMI)并在症状出现后的12小时内采用经皮冠状动脉介入治疗(PCI)的患者,患者的病变冠状动脉已经完全闭塞,在冠状动脉再通之前接受静脉注射环孢素(静脉内给药的剂量为2.5mg每千克体重),

年轻冠心病:病变支数虽少,但多为急性且在重要部位

近年来冠心病的年轻化趋势明显。阜外心血管病医院杨伟宪等进行的研究发现,年轻人患冠心病时,常表现为急性事件;虽以单支病变为主,但近半数患者累及前降支(图1)。因此,得冠心病的年轻人,死亡风险更高。 图1年轻患者急性冠脉综合征和前降支病变比例 研究者还发现,年轻人发生冠心病,以男性多见,且多伴有超重、吸烟、脂代谢异常等心血管危险因素。另外,反应炎性水平的高敏C反应蛋白水平也较高