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正常妊娠与重度子痫前期孕妇房室结构及左心室舒张功能的多普勒评价 被引量:4

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摘要 目的探讨应用超声心动图血流多普勒评价正常妊娠与重度子痫前期孕妇左心房结构及左心室舒张功能变化的临床意义。方法测量106例重度子痫前期重度患者(观察组)及106例正常妊娠者(对照组)孕晚期心脏各项数值。测量左侧房室(LAD、LVD)大小、室壁厚度[室间隔厚度(IVST)、左心室后壁厚度(LVPWT)]、心输出量(CO)、左心室重量指数(LVMI)、二尖瓣血流(MV)舒张早期与舒张晚期最大流速(E),A和E峰下降时间(DT),并计算E/A最大流速比。测量等容舒张期时间(IVRT)。肺静脉血流(PV)频谱,分别测量收缩期、舒张期与心房收缩期反向波的最大峰速S、D与Ar。肱动脉收缩与舒张压。结果观察组舒张功能指标二尖瓣口血流舒张早期峰值流速及其与舒张晚期峰值流速比值显著低于对照组(P<0.05);而二尖瓣舒张晚期充盈峰、肺静脉心房收缩期反响血流充盈峰、相对室壁厚度、左心室等容舒张时间均显著高于对照组(P<0.05)。结论彩色多普勒超声心动图将肺静脉血流频谱与二尖瓣前向血流频谱结合,可较全面评价左心室舒张功能,具有临床诊断价值。
出处 《河北医药》 CAS 2011年第8期1204-1205,共2页 Hebei Medical Journal
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