Dolores Moyano

Progression of Doppler abnormalities in intrauterine growth restriction

To identify the sequence of progression of arterial and venous Doppler abnormalities from the onset of placental insufficiency in intrauterine growth restriction (IUGR).

Computerized fetal heart rate analysis, Doppler ultrasound and biophysical profile score in the prediction of acid-base status of growth-restricted fetuses

To investigate the performance of non‐stress test (NST), computerized fetal heart rate analysis (cCTG), biophysical profile scoring (BPS) and arterial and venous Doppler ultrasound investigation in the prediction of acid–base status in fetal growth restriction.

P01.18: Fetal echocardiography in trisomy 18 in the fetus

Three underwent termination of pregnancy; multiple congenital abnormalities (14 + 1 weeks), recipient of twin–twin transfusion syndrome (TTTS) (17 weeks), and maternal choice (23 + 1 weeks). All showed tricuspid regurgitation (TR) with AREDF DV in the two older fetuses. Of the 11 continuing pregnancies, 10 had a reasonable RV at presentation, one with a large RV to coronary fistula, and 4 had tricuspid valve Z scores of > -3 at delivery, 2 with normal DV. TR was absent in 3: all had normal DV, unrestrictive oval foramen (OF) and TV stenosis (Z score < -3). Six of the 8 with TR showed intermittent AREDF DV, (2 were monochorionic diamniotic pregnancies without TTTS), 4 had associated TV stenosis and 2 restrictive OF. Conclusions: Waveform analysis of DV should be interpreted with caution in PA/IVS because it may imply increased right atrial pressure due to tricuspid regurgitation or restriction to right atrial emptying and not necessarily fetal hypoxaemia or acidosis.