تاثیر تزریق حجم های مختلف نرمال سالین داخل ورید بندناف بر طول مرحله سوم زایمان

Background and purpose: Since bleeding due to prolongation of the third stage of labor is one of the most common causes of mortality in the developing countries, we decided to conduct a comparative study on the effects of normal saline injection into umbilical vein on the shortening of the third stage of labor. Materials and Methods: This study was an experimental scientific research in order to compare the effects of different dosages of intraumblical venous injection of normal saline on the third stage of labor in women who admitted to lmam hospital in Sari. A total of 120 matched pregnant women who had normal delivery without any complications were divided into three equal groups of 40 subjects in each. Twenty and 30 ml normal saline was administered to groups 1 and 2, and the third group was considered as control. In control group the third stage of labor was accomplished without any intervention. Results: This research showed that the injection of 20 or 30 ml normal saline intravenously into the umbilical cord shortened the duration of labor. Also the length of the third stage of labor with the injection of 30 ml normal saline was shorter than that in 20 ml normal saline group but this difference was not statistically significant. Conclusion: The results of our study suggest a clinically important beneficial effect of intraumblical normal saline injection in the treatment of retained placenta.