Objective Postpartum hemorrhage is some kind of severe neopathy in obstetrics. The pitocin were used to enhance the uter-ine contraction and reduce the postpartum hemorrhage,but it could not get a satisfactory effect in some cases. So,we looked for a simple and efficient way to reduce the postpartum hemorrhage by use dexamethasone and pitocin combined. Methods To study the result use the cohort case method,172 cases of full term without neopathy and syndrome were divide in two groups randomly. After the infants were birth, the puerperant were give dexamethasone to body of uterus by i. v and give pitocin by i. m in all the cases in the study group and the puerp-erant were give pitocin by i. m,observe the occurrence of the hemorrhage and determined the amounts of the bloods. Results There were postpartum hemorrhage in four cases,the percentage is 4. 8 percent and there were postpartum hemorrhage in nine cases,the percentage is 10 percent. The average of the amounts of blood were(362. 27 ± 180. 83)ml in the first group. The average of the amounts of blood were (504. 59 ± 288. 17)ml in the control group. They were statistical significant. Conclusion It was an efficient way to reduce the postpartum hemorrhage by combination of dexamethasone and pitocin in the caesarean section.%目的：产后出血是产科较严重的并发症，多年来临床应用缩宫素加强宫缩减少剖宫产产后出血，但对部分产妇效果不显著，探讨剖宫产术中联合应用地塞米松与缩宫素减少产后出血的效果。方法：采用随机对照的方法对172例孕足月剖宫产无妊娠合并症、并发症的产妇进行研究，胎儿娩出后，观察组静脉滴注地塞米松，子宫体肌内注射缩宫素，对照组子宫体肌内注射缩宫素，观察产后出血的发生比例和出血量。结果：观察组产后出血4例，占4.8％，对照组发生产后出血9例，占10％，观察组的平均失血量（362.27±180.83）ml，对照组为（504.59±288.17）ml，各项指标比较差异具有统计学意义。结论：剖宫产术中联合应用地塞米松与缩宫素是一种减少产后出血的有效办法。
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