静脉导管血流参数及频谱形态异常在胎儿先天性心脏病筛查中的应用

Abnormal ductus venosus blood flow parameters and spectrum morphology in the application of the fetal con-genital heart disease screening

目的：探讨静脉导管（DV）血流参数及频谱形态异常在胎儿先天性心脏病（CHD）筛查中的应用价值。方法选取产前检查正常胎儿210例作为对照组。CHD 胎儿48例，按右心功能状态进行亚组分型，对 DV 血流频谱异常的，结合病理进行对照分析。结果48例 CHD 胎儿中，18例为左心系统发育异常，30例为右心系统发育异常；右心功能状态改变分别为：右心前负荷增加15例，右心后负荷增加25例，右心功能改变不明显8例，DV 血流频谱及参数有异常。结论DV 频谱及血流参数异常，高度提示 CHD 发生，尤其是胎儿右心系统发育异常，可作为早期筛查胎儿 CHD 的指标。

Objective To explore ductus venous abnormal -looking blood flow parameters and spectrum morphology in the application value of fetal congenital heart disease screening.Methods 210 cases of normal fetal antenatal examination were selected as a normal control group,48 cases of congenital heart disease the fetus,then the component type according to right heart function,to the abnormal ductus venous blood flow spectrum combined with pathologic contrast analysis.Results 48 cases of CHD in the fetus,18 cases of left heart system dysplasia,30 cases of right heart system dysplasia.In order to right heart function change respectively：right heart preload increased 15 cases,right heart load increased after 25 cases,8 cases of right heart function change was not obvious.Conclusion Ductus venous and parameters have abnormal blood flow spectrum,highly suggestive fetal congenital heart disease, especially dysplasia fetal heart right system can serve as an indicators of early screening for CHD.