title: Cord blood gases and absence of end-diastolic blood velocities in the umbilical artery.
abstract: Umbilical artery and vein blood gases were compared in three groups of pregnant women delivered by elective caesarean section: group 1 (n = 21), normal controls; group 2 (n = 15), complicated pregnancies with normal umbilical artery blood flow velocity waveforms; and group 3 (n = 14), complicated pregnancies with absent end-diastolic blood velocity in the umbilical artery. Newborns in group 3 were found to be small for gestational age and to have significantly lower oxygen pressure and saturation. These fetuses were thus in a state of chronic hypoxia, which may predispose for development of intra-uterine distress. Doppler ultrasound examination can be useful in identifying this high risk group requiring intensified surveillance.
authors: Department of Obstetrics and Gynaecology, University of Lund, General Hospital, Malmö, Sweden.
authors: S
authors: S
authors: Gudmundsson
authors: A
authors: A
authors: Lindblad
authors: K
authors: K
authors: Marsál
mesh_terms: D001639:Bicarbonates / Q000097:blood; D001783:Blood Flow Velocity; D001784:Blood Gas Analysis; D002245:Carbon Dioxide / Q000097:blood; D005260:Female; D005312:Fetal Blood / Q000737:chemistry*; D005311:Fetal Hypoxia / Q000175:diagnosis; D005323:Fetal Monitoring; D006801:Humans; D006863:Hydrogen-Ion Concentration; D010100:Oxygen / Q000097:blood; D011247:Pregnancy; D011256:Pregnancy Outcome; D014463:Ultrasonography; D014469:Umbilical Arteries / Q000502:physiology*
chemical_list: D001639:Bicarbonates; D002245:Carbon Dioxide; D010100:Oxygen