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目的探索生物节律对分娩镇痛孕妇分娩方式的影响。方法 2051例拟阴道分娩的头位、单胎、足月、自发宫缩进入产程并且接受了硬膜外分娩镇痛的初产妇纳入本研究。根据分娩时间分为上午组(7:01-13:00)、下午组(13:01-19:00)、晚上组(19:01-1:00)和凌晨组(1:01-7:00),观察各组分娩方式及新生儿情况。结果①4组间的年龄、身高、体质量、妊娠周数、妊娠期合并症等差异无统计学意义(P>0.05);②4组间的分娩方式有统计学差异(P<0.01),晚上组剖宫产率高于其他各组(P<0.05);③下午组和晚上组新生儿的体质量较高,而上午组和凌晨组较低。结论生物节律对孕妇的分娩方式可能有影响,晚上时段剖宫产率更高。
Objective To explore the effects of circadian rhythm on delivery mode of labor analgesia for pregnant women. Methods 2051 cases of pseudo-vaginal delivery of the first position, single, full-term, spontaneous contractions into the labor process and received epidural labor analgesia primipara into the study. According to the delivery time is divided into morning group (7: 01-13: 00), afternoon group (13: 01-19: 00), evening group (19: 01-1: 00) and early morning group (1: 00), observe the mode of delivery and neonatal conditions in each group. Results ① There were no significant differences in age, height, body weight, gestational age, gestational complications between the 4 groups (P> 0.05). ② The mode of delivery among 4 groups was statistically different (P <0.01) Cesarean section rate was higher than other groups (P <0.05); ③ afternoon and evening groups of newborns higher body mass, but lower morning and early morning groups. Conclusion Biorhythm may affect pregnant women ’s mode of delivery and cesarean section rate is higher in the evening.