Читать книгу Protocols for High-Risk Pregnancies - Группа авторов - Страница 81

Color and pulsed‐wave Doppler velocimetry are useful ultrasound tools for the evaluation and management of fetuses with fetal anemia, growth restriction, congenital heart disease, and fetal arrhythmias. While Doppler ultrasound has been used in other fetal conditions, no study has demonstrated any clear clinical benefit for its use outside those stated above. Widespread use of the DV flow velocity waveforms in the diagnosis of Down syndrome in the first trimester has not yet occurred. Although this is a noninvasive tool to assess for Down syndrome, the emergence of maternal cell‐free fetal DNA screening is far more accurate with extremely high sensitivity for the detection of this chromosomal abnormality. While uterine artery Doppler evaluation of the high‐risk pregnancy might identify a subgroup of women who are at higher risk for adverse pregnancy outcome, the use of Doppler should not be considered a standard medical practice in the general population until further studies demonstrate benefit.