Ductus venosus versus cerebral transverse sinus Doppler velocimetry for predicting acidemia at birth in pregnancies complicated by placental insufficiency.

Objectives: The objectives of this study is to compare ductus venosus (DV) and cerebral transverse sinus (CTS) Doppler velocimetry for predicting acidemia at birth in pregnancies complicated by placental insufficiency.

Methods: A prospective cross-sectional study involving 69 cases. Doppler assessment of the DV and CTS was carried out in the last 24 hours prior to delivery.

[Predictive value for fetal outcome of Doppler velocimetry of the ductus venosus between the 11th and the 14th gestation week].

Purpose: to study the value of Doppler velocimetry of the ductus venosus, between the 11th and 14th weeks of pregnancy, associated to the nuchal translucency thickness measurement, in the detection of adverse fetal outcome.

Methods: a transversal and prospective study in which a total of 1,268 fetuses were studied consecutively. In 56 cases, a cytogenetic study was performed on material obtained from a biopsy of the chorionic villus and, in 1,181 cases, the postnatal phenotype was used as a basis for the result.

Ductus venosus Doppler velocimetry in the prediction of acidemia at birth: which is the best parameter?

Objectives: To evaluate the prediction of acidemia at birth using ductus venosus Doppler velocimetry and to determine the best parameter and cut-off values for this prediction in pregnancies complicated with placental insufficiency.

Methods: Prospective cross-sectional study. Forty-seven patients with placental insufficiency managed in two Brazilian hospitals were submitted to ductus venosus Doppler velocimetry in the last 24 h before delivery.

[Ductus venosus Doppler velocimetry to predict acidemia at birth in pregnancies with placental insufficiency].

Objectives: To investigate the possibility of predicting acidemia at birth in pregnancies with placental insufficiency by Doppler velocimetry of the ductus venosus and to establish the best parameter and cut-off points in this prediction.

Methods: This was a prospective cross-sectional study, involving 47 single pregnancies with placental insufficiency after 26 weeks of gestation, carried out at the "Hospital São Paulo (UNIFESP) and Maternidade-Escola Assis Chateaubriand (UFC)". Placental insufficiency was defined as the umbilical artery pulsatility index above the 95th percentile for gestational age.