Characteristics of the fetoplacental blood flow in labor
Polubentsev, D.I.; Sidorova, I.S.; Makarov, I.O.
Akusherstvo i Ginekologiia 8: 51-52
1991
ISSN/ISBN: 0300-9092 PMID: 1755494 Document Number: 371633
Ultrasonic Doppler scanning was used to study the fetoplacental blood flow before labor, at the height of pang (uterine contraction), and 5-15 seconds following it. 53 parturients were examined during the active phase of labor. They were divided into two groups with different blood flow parameters. The findings evidence a deterioration of umbilical arterial blood flow after a uterine contraction is over, as against its level at the peak of labor pang. These results may be used to assess fetal status, because cyclic changes in the blood flow in umbilical arteries are particularly manifest in deterioration of the fetal status.