In TOF, fetal PV and MPA z-scores and direction of the DA blood flow predict neonatal ductal dependence. Patients with fetal PV z-scores lower than -3 or any left-to-right flow at the level of the DA should be admitted to a center where prostaglandin is available.
Fetuses with PA/IVS have decreased global and regional LV and RV strain compared to controls. The finding of decreased LV strain may be due to altered ventricular mechanics in the context of a hypertensive right ventricle and/or abnormal coronary perfusion. Moreover, fetuses who were found to have RVDCC postnatally had decreased LV and RV strain compared to fetuses who did not. These results encourage further investigation to assess whether fetal ventricular strain could be a prenatal predictor of RVDCC. This article is protected by copyright. All rights reserved.
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