Clinical Study On The Prognostic Factors Of Premature Rupture Of Membranes At 32-34 Weeks Of Gestation

Objective:To investigate the relationship between the time of amniotic fluid index(AFI)hydrolysis after 32 to 34 weeks of premature rupture of membranes(LP)and maternal and child outcomes,and to elucidate the influence factors of maternal and child outcomes after premature rupture of membranes before full term.Methods:Retrospective case analysis was performed to collect clinical data of 102 pregnant women with single PPROM at 32-34 weeks from November 2017 to December 2018 in the second hospital of obstetrics of jilin university.According to the amniotic fluid index of postpartum newborn,there were 34 cases with AFI>80mm(group A)and 34 cases with afi50-80mm(group B)and AFI<50mm(group C).According to the time from rupture of membranes to delivery(incubation period),the patients were divided into three groups: 12~48 hours(12h)and 48 hours(>).Related influencing factors after the analysis of premature rupture of membranes(amniotic fluid index incubation time limit)the prognosis of mother and son relationship.Results:1:Comparison of maternal and neonatal observation indexes with different amniotic fluid index:(1)the cesarean section rate of AFI 50 mm group was higher than that of AFI 80 mm group and AFI>80mm group.The normal delivery rate of AFI>80mm group was higher than that of AFI 80 mm group and AFI 50 mm group,and the difference was statistically significant(P<0.05).The CPR index of the AFI 50 mm group was higher than that of the AFI 50 mm group,and higher than that of the AFI>80mm group.The difference in CPR index was statistically significant(P<0.05).(2)The incidence of neonatal asphyxia in the AFI 50 mm group was higher than that of the AFI 80 mm group,and higher than that of the AFI>80mm group.The incidence of respiratory distress in AFI 50 mm group was higher than that in AFI 80 mm group and AFI>80mm group.Apgar score in AFI 50 mm group was lower than 50<AFI 80 mm,and the incidence of low body weight in AFI>80mm group was higher than that in AFI 50 mm group,and the difference was statistically significant(P<0.05).2.Comparison of maternal and neonatal observation indexes with different durations of water breaking:(1)rates of cesarean section and postpartum hemorrhage in LP>48h group were both higher than those in LP 48 h group,and higher than those in LP<12h group,and the difference was statistically significant(P<0.05).The WBC count of the 12 h LP 48 h group was higher than that of the LP>48h group,and higher than that of the LP<12h group.The CPR index of LP>48h group was higher than that of LP<12h group and 12 h LP 48 h group.The WBC count and CPR indexes of the time to delivery group showed statistically significant difference(P<0.05).(2)The incidence of neonatal pneumonia in the LP>48h group was higher than that in the 12 h LP 48 h group,and higher than that in the LP<12h group.The incidence of respiratory distress syndrome in the LP<12h LP 48 h group was higher than that in the LP>48h LP group,and the difference was statistically significant(P<0.05).Conclusions:1: Residual sheep water volume(amniotic fluid index)is a factor affecting the adverse outcome of premature rupture of the fetal membrane at 32-34 weeks of gestation.2: For patients with premature rupture of membranes at 32-34 weeks,of gestation,the length of the incubation period is closely related to the delivery mode and perinatal outcome.Compared with the incubation period <12h and the incubation period >48h,there is less possibility of infection and better neonatal prognosis.