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组织多普勒对心脏QRS波增宽合并ST段下移的心室不同步化运动研究

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摘要 目的研究心脏QRS波增宽合并胸前导联ST段下移与左心室不同步化收缩的关系。方法利用组织多普勒对40例QRS波增宽合并胸前导联(V1~V6)ST段下移(I组)、40例心电图QRS波增宽大于120ms(II组)、40例正常人(对照组)三组样本进行组织多普勒左心室非同步化运动检查,分别于心尖段的间隔壁、侧壁、前壁、后壁、下壁的基底段及中段测得QRS波起始点至最大局部收缩速度的时间(Ts),计算上述Ts的标准差(Ts-SD)。结果 I组收缩失同步化发生率为93%,而II组为68%,两者差异有统计学意义(<0.05)。结论 QRS波增宽并伴有胸前导联(V1~V6)ST段下移的病变与左心室不同步化收缩具有一定的关联。
出处 《现代实用医学》 2010年第8期891-891,901,共2页 Modern Practical Medicine
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参考文献4

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