Heart:低左室搏出量可增加主动脉瓣狭窄患者不良结局风险!

2017-08-26 MedSci MedSci原创

在严重的主动脉瓣狭窄患者中,低的左室搏出量可能会增加心源性死亡的风险,然而,这种相关性并没有在大型的临床研究中得到验证。本研究纳入了SEAS临床试验中的1671例主动脉狭窄患者,通过平均4.3年时间的随访,评估了体表面积搏出量指数(SVI)与心血管不良事件之间的相关性,低SVI定义为<35 mL/m2。最终分析结果显示,所有研究对象的主动脉峰值速度为3.1 ±0.7 m/s,在随访开始前,有

在严重的主动脉瓣狭窄患者中,低的左室搏出量可能会增加心源性死亡的风险,然而,这种相关性并没有在大型的临床研究中得到验证。

本研究纳入了SEAS临床试验中的1671例主动脉狭窄患者,通过平均4.3年时间的随访,评估了体表面积搏出量指数(SVI)与心血管不良事件之间的相关性,低SVI定义为<35 mL/m2。最终分析结果显示,所有研究对象的主动脉峰值速度为3.1 ±0.7 m/s,在随访开始前,有23%患者有低SVI,并且其与高龄、高的BMI、高心率、高的左室负荷、低平均主动脉瓣梯度、低主动脉瓣面积指数、低能量丢失指数、低左室质量和和低射血分数呈相关性(所有的P<0.05)。SVI低于基线水平5 mL/m2可增加主要心血管不良事件风险(n=544) (HR 1.09, 95% CI 1.05 -1.13, p<0.001)和总体死亡率(n=147) (HR 1.08, 95% CI 1.01 - 1.16, p=0.038)。协变量调整后,基线低水平的SVI和随访过程中的低SVI同样会增加主要心血管不良事件的发生风险。

本研究结果表明,低的体表面积搏出量指数与主动脉瓣狭窄患者的主要心血管不良事件增加呈独立相关性。

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    2017-09-02 方舒

    学习

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    2017-08-28 zhaojie88
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    2017-08-28 slcumt
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    2017-08-27 大爰

    学习并分享!!

    0

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    2017-08-26 有备才能无患

    低的体表面积搏出量指数与主动脉瓣狭窄患者的主要心血管不良事件增加呈独立相关性.

    0

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