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JAHA:射血分数正常的心力衰竭患者舒张压与不良结局!

2018-02-26 xing.T MedSci原创

由此可见,DBP≥90mmHg和<60mmHg与接受降压治疗的射血分数正常的心衰患者不良预后风险显著相关。需要进一步的研究来确定最佳的DBP目标值,以降低射血分数正常的心力衰竭患者不良事件的风险。

虽然舒张压(DBP)与一般人群中心血管不良结局的危险性独立相关,但对于射血分数正常的心力衰竭患者是否存在类似的关系尚不清楚。

近日,心血管疾病领域权威杂志JAHA上发表了一篇研究文章。研究人员招募了1703例(平均年龄为72±10岁;50%为男性;78%为白人)参与TOPCAT研究(醛固酮拮抗剂治疗心力衰竭心功能研究)的射血分数正常心力衰竭患者。多变量Cox回归被用来评估与DBP相关的心衰住院、死亡和心血管死亡的风险。

研究人员发现心衰住院和DBP之间的关系是线性的,随着DBP值降低观察到的风险增加(≥90mmHg:为参考;80-89mmHg:风险比[HR]为1.44;95%可信区间[CI]为0.85-2.44;70-79mmHg:HR为1.18;95%CI为0.69-2.01;60-69mmHg:HR为1.54;95%CI为0.90-2.63;<60mmHg:HR为2.12;95%CI为1.20-3.74;趋势P=0.0055)。DBP与死亡(≥90mmHg:HR为1.86;95%CI为1.12-3.06;80-89mmHg:HR为1.23;95%CI为0.89-1.70;70-79mmHg为参考;60-69mmHg:HR为1.20;95%CI为0.90-1.59;<60mmHg:HR为1.68;95%CI为1.21-2.33)和心血管死亡(≥90mmHg:HR为2.02;95%CI为1.10-3.71;80-89mmHg:HR为1.17;95%CI为0.77-1.79;70-79mmHg为参考;60-69mmHg:HR为1.16;95%CI为0.80-1.70;<60mmHg:HR为1.85;95%CI为1.21-2.82)的之间的相关性是非线性的,在DBP≥90mmHg和<60mmHg的患者中可以观察到每个结局更大的风险。

由此可见,DBP≥90mmHg和<60mmHg与接受降压治疗的射血分数正常的心衰患者不良预后风险显著相关。需要进一步的研究来确定最佳的DBP目标值,以降低射血分数正常的心力衰竭患者不良事件的风险。

原始出处:

Pratik B. Sandesara,et al. Diastolic Blood Pressure and Adverse Outcomes in the TOPCAT (Treatment of Preserved Cardiac Function Heart Failure With an Aldosterone Antagonist) Trial.JAHA.2018. https://doi.org/10.1161/JAHA.117.007475

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    2018-02-28 zhaohui6731
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