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双腔起搏房室延迟优化对心功能及血浆B型钠尿肽的影响 被引量:2

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摘要 目的:探讨双腔起搏房室延迟优化对心功能及血浆B型钠尿肽(BNP)的影响。方法:26例因完全性房室传导阻滞而植入或更换DDD永久心脏起搏器患者,采用超声测定不同房室延迟(AVD)起搏时血流动力学的变化优化AVD,并观察常规AVD和优化AVD时超声心动图参数和血浆BNP的变化。结果:在急性DDD起搏,AVD在180ms时,血流动力学参数平均右房压、平均肺动脉压、平均肺毛细血管楔压、心排血量为谷值,与基线及240msAVD比较有显著改善(P<0.05),确定180msAVD为优化AVD。心功能各参数较基线及250msAVD在180msAVD时均有显著改善(P<0.05)。优化AVD组较常规AVD组左室收缩功能指标心排血量、心脏每搏输出量、左室舒张末期内径、左室射血分数等方面均有提高,二者间经统计学处理差异有显著性(P<0.05);优化AVD组的血浆BNP较常规AVD组明显减低(P<0.05)。结论:优化AVD起搏对心功能Ⅱ~Ⅲ级患者心功能有显著的改善作用。
出处 《实用医学杂志》 CAS 2007年第13期2007-2008,共2页 The Journal of Practical Medicine
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参考文献6

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