[The relation between indirect fetal electrocardiogram and blood gas analysis of umbilical cord artery during labor].
OBJECTIVE
To observe the relation between indirect fetal electrocardiogram (FECG) and blood gas analysis of umbilical cord artery blood during labor and discuss the possibility of using FECG for labor monitoring.


METHODS
Indirect FECG was used for fetal monitoring in 80 cases during the second stage of labor and cord umbilical artery blood was taken immediately after delivery for blood gas analysis. Cases were retrospectively divided into normal and abnormal groups according to the results of FECG.


RESULTS
The success rate of FECG test was 91.95%. Significant differences were noted in mean values of pH, PCO2, PO2, actual base excess (ABE) and standard base excess (SBE) of umbilical artery between the 2 groups, so were the percentages of cases with pH < 7.20, PCO2 > 8.00 kPa, PO2 < 2.10 kPa.


CONCLUSIONS
Indirect FECG can be used for fetal monitoring during labor. FECG is obviously correlated with acid-base equilibrium and blood gas concentration of umbilical cord artery blood, it is a sensitive index of fetal and neonatal hypoxia.
Li
Y
Y
First Affiliated Hospital of Guangzhou Medical College.
Yu
H
H
Chen
Q
Q
D000328:Adult; D001784:Blood Gas Analysis; D004562:Electrocardiography; D005260:Female; D005312:Fetal Blood / Q000378:metabolism*; D005318:Fetal Heart / Q000502:physiology*; D005323:Fetal Monitoring; D006801:Humans; D007745:Labor Onset; D011247:Pregnancy; D014469:Umbilical Arteries