Variable vascular morphological patterns of placenta previa accreta were exhibited and categorized by transabdominal color Doppler sonography in the antenatal period. The identification of these specific vascular patterns had a positive impact on the peripartum clinical management of the affected patients.

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II-3.

A case of placenta previa/accreta was diagnosed at 23 weeks' gestation using color Doppler ultrasound. Imaging showed an unusually intense blood flow within the placental sonolucent spaces and the hypervascularization patterns within the placental and the non-placental tissues. Highly pulsatile venous flow patterns were detected within the placental blood lakes and the subplacental venous complex. A strong association between the lacunar flow pattern and the abnormally adherent placentation was confirmed by the color Doppler sonographic findings.

For daily practice, our data could offer a database for proper genetic counseling, such as termination issues and future pregnancies.

Our results for the murine model provide direct scientific evidence that mitochondrial transfer improves embryonic development. However, potential risks such as mitochondrial heteroplasmy, nuclear-mitochondrial interaction and epigenetic aspects all deserve further evaluation before mitochondrial transfer is applied clinically.

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