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功能性二尖瓣反流对慢性心力衰竭预后的影响

2017-08-04 伊文 国际循环

目前,在改善心力衰竭患者的预后方面,主要通过减少患者的功能性二尖瓣反流(FMR)。2017年7月25日,《欧洲心脏病杂志》发表了一项最新相关研究,在最佳药物治疗(OMT)和其他因素引起心脏射血分数降低(HFrEF)的情况下,评估FMR对心力衰竭患者预后的影响。

目前,在改善心力衰竭患者的预后方面,主要通过减少患者的功能性二尖瓣反流(FMR)。2017年7月25日,《欧洲心脏病杂志》发表了一项最新相关研究,在最佳药物治疗(OMT)和其他因素引起心脏射血分数降低(HFrEF)的情况下,评估FMR对心力衰竭患者预后的影响。

研究纳入576例HFrEF患者长期观察。基线水平上检测心功能(NYHA分级),超声心动图,侵入性血流动力学和生化指标(NT-proBNP,MR-proANP,MR-proADM,CT-proET-1,copeptin)。中位随访62个月,其中47%患者死亡。结果表明,严重FMR是死亡的重要预测因子(HR=1.76,95%CI:1.34~2.30;P<0.001),独立于临床(校正HR= 1.61,95%CI:1.22~2.12;P= 0.001)和超声心动图(校正HR=1.46,95%CI:1.09~1.94;P= 0.01)混杂因素,OMT(校正HR=1.81,95%CI:1.25~2.63;P= 0.002)和神经体液激活(校正HR=1.38,95%CI:1.03~1.84;P= 0.03)。

亚组分析显示,严重FMR与预后较差的HFrEF中度心力衰竭表型相关,如NYHA II级(校正HR=2.17,95%CI:1.07~4.44;P= 0.03)、III级(校正HR= 1.80,95%CI:1.17~2.77,P= 0.008),左心室功能轻度降低(校正HR=2.37,95%CI:1.36~4.12;P= 0.002),并在NT-proBNP第二个四分位数(871~2360 pg / ml)(校正HR=2.16,95% CI:1.22~3.86;P=0.009)之内。

该研究提示,在OMT患者队列中,FMR的不良预后影响主要表现在心功能,血液动力学,生化指标和形态学上明确定义的中度心力衰竭表型的亚组队列中。

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    2017-08-06 wwzzly
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    2017-08-06 feifers

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