前次剖宫产手术时机对再孕阴道分娩母婴并发症的影响OACSTPCD

Aim To explore impact of maternal and infant complications during vaginal delivery by timing of previous cesare-an section surgery.Methods Retrospective analysis of 1 034 cases of vaginal delivery(VBAC)after full term cesarean section admitted to our hospital.According to the timing of previous cesarean section,426 cases were divided into elective group(elective cesarean section),278 cases were divided into first stage of labor group(cesarean section in the first stage of labor)and 330 cases were divided into second stage of labor group(cesarean section in the second stage of labor).The effect of previous cesarean section timing on labor process,postpartum complications and neonatal birth condition of VBAC was analyzed.Results The rate of uter-ine inertia,24 hours postpartum hemorrhage,incidence of postpartum hemorrhage and postpartum hospitalization days of second stage of labor group were higher than those in elective group and first stage of labor group(P<0.05),and those items had no statistical difference between elective group and first stage of labor group(P>0.05).There was no significant difference in the time limit of the second and third stages of labor,midwifery rate,perineal laceration rate,postpartum urinary retention rate,fever rate,Apgar score at 1 min of the newborn,incidence of neonatal asphyxia and the proportion of transferred to neonatal department among the three groups(P>0.05).Conclusion Pregnant women who underwent the previous second stage cesarean section surgery have an increased risk of uterine atony and postpartum hemorrhage during vaginal delivery.