Abstract
Objectives: To detect the hemodynamics characteristics of moternal fetal doppler blood flow surveillance in congenital heart disease (CHD). Methods: This is a retrospective study of 132 singleton pregnancy women due to fetal CHD. Detailed maternal fetal Doppler were performed after fetal echocardiography. We noted the PI of fetal venous duct (DV), free segment of umbilical vein (UV) and intra-abdominal segment, middle cerebral artery (MCA), umbilical artery (UA) and bilateral uterine artery (AU) and congenital heart malformations. According to PI of these vessels, the umbilical artery blood flow classification (BFC), uterine artery score (UAS), placental score (PLS) are done. Results: 1. 27 cases with simple septal defect fetus and 51 cases with complex CHD fetus have normal PI fetal UA, DV and MCA (BFC = 0) compared with normal fetus. 2. 38 cases of complex CHD with cardiothoracic ratio >0.35, TV and MV regurgitation, have significantly increased PI of UA, DV, and PI of MCA reduced. BFC and PLS both >0 (P 0 and PLS >0. Conclusions: The fetal venous system Doppler is the first change, Which give a further demonstration that the abnormality of CHD fetus circulation will cause the fetal-placental circulation corresponding changes, and make the placental function reduce and fetus damage.
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