The Influences Of The PCEA During Labor To The Puerpera, Fetus And Newborn

Objective: To explore the influences of the patient-controlled epidural analgesia( PCEA) on the process of labor, the delivery mode, the fetus and the newborn. Evaluating the validity and security of PCEA to provide evidence for its application for labor pain.Methods: 0ne hundred normal nulliparous women (ASA I-II) were randomly assigned averagely to two groups .One group used the PCEA to relief the labor pain in 2cm cervical dilation (Group R), the other group labored traditionally (Control group). The value of VAS, the time of the first and second stages of labor, and the delivery mode , the fetal heart rate, the pollution of amniotic fluid, the newborn Apgar Score, the concentration of lactic acid and gas values of umbilical cord blood were compared between the two groups.Results: Among the one hundred pregnant women, we have collected the data of ninty-three of them compeltely. They are 47 cases from the Group R, and 46 cases from the control group. There was no statistic differences on age, height, weight, pregnant weeks, pregnant times and fetus weight between the two groups before laboring (P>0.5). The blood pressure, pulse and SPO2 of the two groups were all in the normal scopes. The VAS of the Group R had been lowered remarkably after controlling the labor pain using PCEA compared to that before the anaesthesia (P<0.5). The VAS of Group R was obviously lower than the control group during the second stage of labor,(P<0.5). The first stage of Group R had been shortened, but its second stage had been extended.However, there is no statistic differences between the two groups in this aspect (P>0.05). The Caesarean birth and the rate of vaginal deliver of the two groups were same. When the fetal heart rate had been observed, there was no incidence of fetal distress in Group R, but three cases of fetal distress in the control group. There were no significant differences of the newborn Apgar score and choke incidence of the two groups (P>0.05). The concentration of umbilical artery's lactic acid of Group R was obviously lower than that of control group (P<0.05). There was no significant differences of umbilical cord blood gas values between the two groups (P>0.05). The pollution of amniotic fluid was light or moderate in Group R, and there was no serious pollution. It was statisticly different from the control group(P<0.05)。.Conclusions: The PCEA can not only control the labor pain, but also has no bad influences on the labor process, the delivery mode, the fetus and newborn. Therefore the PCEA is a safe method to control the labor pain.