مقایسه اداره فعال و فیزیولوژیک مرحله سوم زایمان روی مرحله سوم زایمان و انتقال خون جنین به مادر

Introduction : Third stage of delivery is probably the most dangerous stage, because mother is threatened by bleeding. Injection of oxytocin after delivery decreases the prevalence of bleeding and shortens the duration of third stage of delivery. Measurement of the amount of feto- maternal transfusion was the second object. Materials and Methods : This research was done on 230 single fetus case.gestation less than 34 weeks and Rh- patients were omitted. The first group was injected 10 units of oxytocin intramuscularly immediately after delivery. In the second group there was no injection of oxytocin, 25 persons from the first group and 27 persons from the second group were selected randomly. kleihaver test was performed before and half hour after delivery in order to measure the amount of feto- maternal blood transfusion. Results : The mean of the third stage in the group who were injected with oxytocin immediately after placenta delivery was 4.2 minutes , and for the second group was 5 minutes. There was no significant difference in the mean time of two groups. In the first group there was no retension of placenta, but in second group three cases (2.6%) retension of placenta was noticed. The mean volume of bleeding in the third stsge, of first and second groups was 54.9 and 72.5 ml liters respectively, 72.5 ml and the differences were not stotically significant. In the first group, the amount of fetus blood transfusion to mother was 27 and in the second group was 26.4 ml. there was no significant difference in feto- maternal blood transfusion. Conclusion : On the basis of this finding , which indicated no significant difference in the mean time of third stage of delivery in injected and non injected patients , and feto- maternal blood transfusion, administration of oxytocin had no significant effect on the above mentioned cases