双多普勒超声评估胎儿房性期前收缩

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目的 探讨双多普勒超声在检测胎儿房性期前收缩中的应用价值.方法 应用彩色多普勒超声对7013例胎儿进行常规检查,发现有胎儿心律失常者行双多普勒超声检查,同步记录肝静脉(HV)、降主动脉(DAo)血流频谱.比较20例正常心律胎儿常规多普勒及双多普勒检测时间.结果 检出房性期前收缩胎儿28例,包括房性期前收缩伴下传14例,房性期前收缩伴未下传8例,房性期前收缩部分下传部分未下传6例,所有病例未发现合并严重先天性心脏畸形.26例房性期前收缩胎儿均于晚孕期转为正常窦性心律,2例胎儿于产后3d转为正常窦性心律.正常胎儿的心律双多普勒超声检测时间明显少于常规多普勒(P<0.05).结论 双多普勒超声检测胎儿房性期前收缩简便、快速,可用于精确诊断胎儿房性期前收缩。

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