Results The difference between the two groups was statistically significant in terms of efficacy of analgesia, the duration of active stage and total stages of labor, the rate of transvaginal delivery and fetal distress(χ 2=4.13-43.05, u=11.87, 13.75, P< 0.01).
Result There were significant differences between two groups in analgesia effect and effect lasting time(P<0.01) and no significant difference in 2 hours postpartum hemorrhage volume.
Results:The score of labor pains in the observational group was significantly lower than that in the control one (P<0.01). The duration of active phase and total delivery process in the NOALgroup was significantly shorter than that in the control one(P<0.05).
Although it is used routinely, remarkably little is known about the mechanism mediating nitrous-oxide analgesia.
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Statistical analysis evaluated the sensitivity of the method to nitrous-oxide analgesia but not the clinical effect in each patient.
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The present experiment used the MRS method to assess the kinetics of nitrous-oxide analgesia in a crossover design.
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Aim: To study the efficiency of inhalating isoflurane for vaginal delivery and its influence on mothers and infants. Methods:Seventy five primiparae were divided randomly and eqnally into three groups:Group A received 0.2% to 0.75% isoflurane and oxygen;Group B received 30% to 50% nitrous oxide and oxygen and Group C received air.The efficiency of inhalation analgesia was evaluated by visual analog scale(VAS).Status of fetus and neonate were evaluated by fetal heart rate(FHR),nature of amniotic fluid at bir...
Objective:To investigate clinical value of N 2O analgesia in accelerating phase of labour process.Method:180 cases primipara with vaginal delivery were divided into experiment group who received N 2O inspiration during accelerating phase + happy accompary,control group under going routine vaginal delivery.Result:Experiment group show better in analgesia(P<0 01),shorter labour process(P<0 05).Conclusion:This method show better analgesia,shorter process,safe,simple,worthy for spreading.
Objective To study the efficacy of intermittent inhalation of nitrous oxide for relieving pain during birth process and its influence on mothers and fetus. Methods Three hundred lying-in women willing to accept labor analgesia were selected as Observation Group and another 300 served as the Control Group .The painful extent, labor duration, labor pattern, the volume of postpartum hemorrhage in the first two hours, fetal distress rate and fetal suffocation rate were compared between the two groups. Results ...