Abnormal velocity waveforms of the umbilical artery in growth retarded fetuses: relationship to antepartum late heart rate decelerations and outcome.

@article{Bekedam1990AbnormalVW,
  title={Abnormal velocity waveforms of the umbilical artery in growth retarded fetuses: relationship to antepartum late heart rate decelerations and outcome.},
  author={Dick Bekedam and Gerard H A Visser and Ate G J Van Der Zee and Rosalinde Johanna Maria Snijders and G Poelmann-Weesjes},
  journal={Early human development},
  year={1990},
  volume={24 1},
  pages={79-89}
}
In 70 intrauterine growth-retarded (IUGR) fetuses with antepartum late heart rate decelerations recordings of velocity waveforms of the umbilical artery were made with Doppler ultrasound and calculated as pulsatility indexes (PI). In 29 of these fetuses longitudinal recordings were made. Abnormal PIs preceded the occurrence of late heart rate decelerations in 27 (93%) of the 29 fetuses. The median duration of the interval between the first abnormal PI and the first appearance of antenatal heart… CONTINUE READING