Effects of two different delivery positions on deliveryoutcomes and pelvic floor function of primiparas with full-term singleton fetus

  Objective  To explore the effects of two different delivery positions on the delivery outcomes and pelvic floor function of primiparas with full-term singleton fetus.

  Methods  A total of 90 primiparas with vaginal delivery were divided into control group and observation group by prospective randomized controlled trial v method, with 45 cases in each group. All the primiparas were given birth nursing management according to the standard of labor process. The control group gave birth in the traditional lying position. The observation group freely chose the delivery positions according to the personal preference and comfort of the parturients. The mode of delivery, the time of labor, the amount of postpartum hemorrhage, the damage-free rate of perineum and Apgar scores of newborns were compared between the two groups.

  Results  There were no significant differences between the two groups in the amount of postpartum hemorrhage, the time of the third stage of labor and the Apgar score at 1 min (P>0.05). The success rate of vaginal delivery was 100.00% in the observation group, and 86.67% in the control group. There were no cases with transit cesarean section in the observation group, and its rate was 13.33% in the control group. There were significant differences between the two groups in the delivery modes (P < 0.05). The time of the first stage of labor and the second stage of labor in the observation group were significantly shorter, and rate of no perineum injury was higher than that of the control group(P < 0.05). The detection of pelvic floor muscle strength at 6 weeks after delivery showed that the observation group had higher vaginal resting pressure(VRP), vaginal systolic pressure(VSP), duration of contraction, Ⅰ fiber strength and Ⅱ fiber strength than the control group (P < 0.05).

  Conclusion  Free position delivery can effectively reduce the rate of transit cesarean section, shorten the time of delivery and reduce the perineum injury, which has a better protective effect on the pelvic floor function of parturients.