Fetal heart rate beat-to-beat variability in uncomplicated labor.
18 healthy parturients were monitored during normal labor in order to determine the influence of uterine contractions and fetal body movements on fetal heart rate beat-to-beat variability (BTBV). The BTBV was 5.37 +/- 1.28 during the baseline period and a significant increase to 6.46 +/- 1.64 was found during uterine contractions (p less than 0.001). The BTBV during fetal movements, 6.21 +/- 2.29, did not differ significantly from the value of the baseline period.
Zimmer
E Z
EZ
Department of Obstetrics and Gynecology B, Rambam Medical Center, Haifa, Israel.
Divon
M Y
MY
Vadasz
A
A
D005260:Female; D005324:Fetal Movement; D006340:Heart Rate, Fetal; D006801:Humans; D007743:Labor, Obstetric / Q000502:physiology*; D011247:Pregnancy; D014590:Uterine Contraction