JAHA:醛固酮能否预测所有急性冠脉综合征患者的心血管事件?

2017-01-11 xing.T MedSci原创

在没有进一步发展为心衰的急性冠脉综合征患者中,醛固酮并不能预测主要心血管事件。

醛固酮可能对心肌和血管有不良的影响,采用醛固酮拮抗剂治疗可以降低并发心力衰竭(心衰)和左室收缩功能不全的急性心肌梗死患者心血管风险。然而,大多数急性冠脉综合征患者并没有进一步发展为心衰。在这些患者中,醛固酮是否能够预测心血管风险尚不清楚。

近日,心血管病领域权威杂志JAHA上针对这一问题发表了一篇研究文章。为了解决这个问题,研究人员评估了dal-OUTCOMES研究的数据,该研究主要比较了急性冠脉综合征患者发病后从4到12周采用胆固醇酯转移蛋白抑制剂达塞曲匹与安慰剂治疗的疗效。纽约心脏协会心功能分级为II级(左室射血分数LVEF<40%)、III和IV的心衰患者被排除,研究人员测量了4073例随机患者的醛固酮水平。该研究的主要结局为冠心病死亡、非致死性心肌梗死、卒中、不稳定型心绞痛而住院或心脏骤停复苏的复合指标。因心衰而住院作为该研究的次要结局。

在中位随访时间为37个月的随访期间,研究人员发现有366名(9%)参与者发生了主要结局事件,另有,72名(1.8%)参与者发生因心衰而住院事件。此外,在调整协变量的Cox回归模型中,研究者也发现醛固酮与该研究主要结局首次发生时间(醛固酮加倍的风险比为0.92,95%可信区间为0.78-0.09,P=0.34)和因心衰而住院(风险比为1.38,95%可信区间为0.96-1.99,P=0.08)之间并不存在相关性。

由此可见,在没有进一步发展为心衰的急性冠脉综合征患者中,醛固酮并不能预测主要心血管事件。

原始出处:


Reynaria Pitts,et al. Aldosterone Does Not Predict Cardiovascular Events Following Acute Coronary Syndrome in Patients Initially Without Heart Failure. JAHA.2017. 

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    2017-01-13 zhaohui6731
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    2017-01-13 cmsvly
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    2017-01-12 susice

    学习了,切入点不错

    0

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他汀类药物确实可减少心血管死亡率,并且似乎这种益处是独立于降脂治疗特性的。多国学者近期评估了他汀类药物是否可调节醛固酮的分泌,后者可导致心血管疾病。结果表明,高血压和糖尿病患者应用他汀与醛固酮分泌减少有关,这一影响似乎在使用亲脂性他汀和较大剂量应用者中最为明显。相关论文近期发表于《循环》(Circulation)杂志。 研究者们对两项干预试验中的受试者检测了肾上腺激素。在第一项试验的高血

Circulation:糖尿病和高血压患者使用他汀类药物可抑制体内醛固酮的分泌

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