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Sci Rep:左心房和左心耳对房颤射频导管消融的不同反应

2018-05-23 xiangting MedSci原创

与LA容积相反,RFCA后LAA容积扩大。这项研究数据提高了对RFCA后LA和LAA血流动力学恶化的关注。

已知房颤(AF)可引起左心房(LA)的不良重塑。AF的射频导管消融(RFCA)与LA容积减少相关。然而,RFCA对左心耳(LAA)容积和血流动力学功能的影响尚未被完全了解。

这项研究分析了123名在RFCA前后进行了心脏磁共振成像(MRI)评估的患者。根据心脏MRI评估了RFCA前后的LA和LAA容积。基线LA容积为99.5±38.4cm3,并在RFCA后降至74.6±28.5cm3(p<0.001)。RFCA后,经胸超声心动图测量的LA直径也减小了(基线时为43.3±6.2mm,随访时为39.9±5.9mm; p<0.001)。然而,RFCA后LAA容积显著增大(基线时为19.4±8.5cm3,基线时为23.7±13.3 cm3; p<0.001)。总消融时间和额外的底物修改与LA容积变化相关。RFCA后,经食管超声心动图测量的平均LAA速度从41.1cm/s升高至51.0 cm/s(p<0.001)。

与LA容积相反,RFCA后LAA容积扩大。这项研究数据提高了对RFCA后LA和LAA血流动力学恶化的关注。RFCA后LAA扩大的长期临床意义尚需要进一步评估。

原始出处:

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    2018-08-08 ylz8411
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    2018-05-25 jxrzshh
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    2018-05-25 sodoo
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    2018-05-23 1e0f8808m18(暂无匿称)

    学习了.好文章.

    0

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