Objective To explore effects of promoting natural delivery ,reduce the operation rate and increased maternal and child health were on the second birth process using modified seat .Methods 108 cases of pregnant women obsevation group ,while 100 cases of pregnant women were control group ,two groups were observed during the second stage of labor ,mode of delivery time ,neonatal Apgar score ,postpartum hemorrhage volume .Results The observation group was significantly shorter in duration of the second stage of labor ,cesarean section and vaginal de-livery rate decreased significantly ,the incidence rate of neonatal asphyxia was significantly reduced ,compared with the control group ,the differences were statistically significant (P<0 .05) .Conclusion By using the second stage of labor improved seat ,the second stage of labor time canbe obviously shortened ,natural birth rate is high ,which are benefit for the health of mother and infant .% 目的探讨第二产程中使用改良式坐位对促进自然分娩、降低剖宫产率及增加母婴健康的影响.方法随机选择泸州市人民医院108例孕妇为观察组，在第二产程中使用改良式坐位分娩，同时以100例孕妇作为对照组，取常规体位(平卧位)观察两组产妇第二产程时间、分娩方式、新生儿出生 Apgar评分、产后出血量等.结果观察组第二产程时间明显缩短，剖宫产率和阴道助产率明显下降，新生儿窒息的发生率明显减少，与对照组比较差异有统计学意义( P<0.05).结论改良式坐位使第二产程时间明显缩短，自然分娩率提高，有利于母婴健康.
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