Second stage fetal heart rate abnormalities and neonatal acidosis

Academic Article

Abstract

  • Of 403 newborns with either fetal heart rate (FHR) bradycardia or tachycardia during the last ten minutes of the second stage of labor, 20% had an umbilical cord pH of less than 7.20 at birth compared with only 4% of newborns who had a normal FHR during the last ten minutes of labor (P<.0001). Thirty (18%) of 165 neonates with mild bradycardia and 33 (27%) of 121 neonates with moderate to marked bradycardia had cord pH values of less than 7.20 at birth (P<.0001). Of the 117 neonates with tachycardia during the last ten minutes of the second stage, 17 (15%) had a pH of less than 7.20 (P<.0001). There was a significant increase in low cord pH values when FHR variability was absent when compared with normal variability (P<.0001). © 1984 by The American College of Obstetricians and Gynecologists.
  • Authors

    Published In

    Pubmed Id

  • 24323453
  • Author List

  • Gilstrap LC; Hauth JC; Toussaint S
  • Start Page

  • 209
  • End Page

  • 213
  • Volume

  • 63
  • Issue

  • 2