Journal of North Khorasan

Abstract Background & objective: Obstetric interventions including usage of sedative drugs, uterine stimulation and augmentation labor and delivery can have substantial influences on the prenatal outcomes. Used at the time of umbilical blood gases analysis reflect fetal metabolic situation and it is one of the principle criteria for recognizing asphyxia during natural labor. It was be supposed that every factor which has adverse effects on umbilical blood gas, can lead up to fetal asphyxia. The aim of this study was to detect the relation between obstetric interventions during labor and umbilical blood gas values in newborns. Material & Methods: This cross sectional study was done on 55 pregnant women who were refer to maternity hospital in Bojnurd city in 2011 and had singleton pregnancies, cephalic presentation and low risk pregnancy. Information was completed via Interview and observation forms. The use of oxytocin and sedative drugs were considered as obstetrical interventions. Arterial blood sampling of umbilical cord was collected for blood gas analysis. Data were analyzed by SPSS version 16 using t-test and kruskal-wallis test Results: Oxytocin and sedative drugs were used in 68.5% and 38.2% of women respectively. Statistical analysis did not demonstrate significant differences in umbilical artery blood gases between women who oxytocin and who did not receive this drug. Receiving seductive drugs also did not change blood gases in women. Conclusion: The results of this study showed that using sedatives and augmentation of labor with oxytocin had not adverse effect on neonatal blood gas values.