[Study of Doppler flow velocity wave forms of the fetal umbilical artery].
400 umbilical arterial wave forms were determined in 120 cases of normal pregnancy. The systolic/diastolic (S/D) ratio of umbilical doppler flow velocity wave declined gradually from 3.3 to 2.2 during the period of 28th to 40th week, It was shown that the utero resistance was reduced and the placental blood perfusion was good. 67 umbilical arterial wave forms were determined in 33 cases of pregnancy induced hypertension. There were 20 cases of IUGR or fetal distress with abnormal umbilical arterial S/D ratio. The incidence of IUGR was 27% (9/33). The results show that this is a good, non-invasive and practical method for predicting fetal outcome. In combination with NST and biophysical profile it can serve as an antepartum assessment of fetal well being and is of much valve to eugenics and perinatology.
Zhang
Z J
ZJ
Obstet Gynecology, Hospital of Shanghai Medical University.
D001783:Blood Flow Velocity; D005260:Female; D005317:Fetal Growth Retardation / Q000175:diagnosis; D006801:Humans; D011225:Pre-Eclampsia / Q000503:physiopathology; D011247:Pregnancy / Q000502:physiology*; D011296:Prenatal Diagnosis; D014463:Ultrasonography; D014469:Umbilical Arteries / Q000502:physiology*