CCQO:β受体阻滞剂对冠心病患者没有明显临床疗效

2014-10-09 Shelley Wood 杨辉译 医学论坛网

越来越多的证据表明β受体阻滞剂对于患有稳定型冠状动脉心脏病或有其危险因素的患者没有明显临床疗效,这是基于对氯吡格雷加阿司匹林预防动脉粥样硬化事件的对照研究(CHARISMA)的事后分析。 这个分析于2014年9月30日发表在Circulation: Cardiovascular Quality and Outcomes上,使β受体阻滞剂对于冠心病患者明确有益的结论得到进一步否定。 “实际上我们

越来越多的证据表明β受体阻滞剂对于患有稳定型冠状动脉心脏病或有其危险因素的患者没有明显临床疗效,这是基于对氯吡格雷加阿司匹林预防动脉粥样硬化事件的对照研究(CHARISMA)的事后分析。

这个分析于2014年9月30日发表在Circulation: Cardiovascular Quality and Outcomes上,使β受体阻滞剂对于冠心病患者明确有益的结论得到进一步否定。

“实际上我们不能把所有的冠心病患者当做一个整体。”Dr Sripal Bangalore基于分析说到,“我们越来越意识到β-阻滞剂的优势因人而异,我们不得不根据个体考虑。”

Bangalore和他的同事观察了参与CHARISMA实验患有非致死性心肌梗死、中风或心血管疾病的患者致死率,研究根据病人初始情况进行分组:心肌梗死病史组(4772例)、动脉粥样硬化疾病组(7804例)、危险因素(未患心力衰竭)组(2101例),按照每一组患者根据是否服用β受体阻滞剂为基线进行分析。

28个月的随访后,服用β受体阻滞剂的患者中,心肌梗死病史组降低31%的综合结果的风险,降低大约40%发生新心肌梗死的风险,在死亡率方面未发现不同,但在心肌梗死病史组中服用β受体阻滞剂和未服用β受体阻滞剂间发现差异。

在动脉粥样硬化疾病组和危险因素组中,是否服用β受体阻滞剂并没有发现对治疗结果产生明显差异。

中风风险信号

值得注意的是,β受体阻滞剂可以增加危险因素组的中风发生概率,在POISE研究中,也发现了围手术期使用β受体阻滞剂能增加中风风险的危险信号,同样结论也报道在2012年Bangalore 等人通过评估REACH注册处数据的文章中。

“大量的随机试验数据、注册数据和观察性研究中一致的指出β受体阻滞剂能增加中风风险。” Bangalore说到。

之前认为的中风风险机理是:β受体阻滞剂“无意义的降低”中央主动脉压力,潜在的引起心率减少。作者们补充到。

重要警告

Bangalore说到:根据CHARISMA分析结果,使用β受体阻滞剂应该有很多限制,包括较老药物的使用和患者在整个随访过程中是否一直使用此类药物,甚至是否该使用此药物。

在过去10年里,CHARISMA研究中病人的看护标准已经改变,“如今我们用药的方式已经很不同了。” Bangalore说到。他提出REACH研究中包含大多为同一时期的病人,且是基于时间分析、持续治疗的病人。在REACHA研究中,并没有发现使用β受体阻滞剂带来的任何临床结果差异,“基于大样本、真实世界注册数据研究,我们发现使不使用β受体阻滞剂是相似的。”

原始出处

Bangalore S1, Bhatt DL2, Steg PG2, Weber MA2, Boden WE2, Hamm CW2, Montalescot G2, Hsu A2, Fox KA2, Lincoff AM2.β-Blockers and Cardiovascular Events in Patients With and Without Myocardial Infarction: Post Hoc Analysis From the CHARISMA Trial.Circ Cardiovasc Qual Outcomes. 2014 Sep 30.

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    2015-04-22 zhyy88
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