Background:Preterm premature rupture of membranes(PPROM)is associated with high neonatal morbidity and mortality.However,the influences of cesarean section(CS)on neonatal outcomes in preterm pregnancies complicated wi...Background:Preterm premature rupture of membranes(PPROM)is associated with high neonatal morbidity and mortality.However,the influences of cesarean section(CS)on neonatal outcomes in preterm pregnancies complicated with PPROM are not well elucidated.The aim of this study was to investigate the influence of delivery modes on neonatal outcomes among pregnant women with PPROM.Methods:A retrospective cross-sectional study was conducted in 39 public hospitals in 14 cities in the mainland of China from January 1st,2011 to December 31st,2011.A total of 2756 singleton pregnancies complicated with PPROM were included.Adverse neonatal outcomes including early neonatal death,birth asphyxia,respiratory distress syndrome(RDS),pneumonia,infection,birth trauma,and 5-min/10-min Apgar scores were obtained from the hospital records.Binary variables and ordinal variables were respectively calculated by binary logistic regressions and ordinal regression.Numerical variables were compared by multiple linear regressions.Results:In total,2756 newborns were involved in the analysis.Among them,1166 newborns(42.31%)were delivered by CS and 1590 newborns belonged to vaginal delivery(VD)group.The CS proportion of PPROM obviously increased with the increase of gestational age(x2=5.014,P=0.025).Compared with CS group,VD was associated with a higher risk of total newborns mortality(odds ratio[OR],2.38;95%confidence interval[Cl],1.102-5.118;P=0.027),and a lower level of pneumonia(OR,0.32;95%Cl,0.126-0.811;P=0.016).However,after multivariable adjustment and stratification for gestational age,only pneumonia was significantly related with CS in 28 to 34 weeks group(OR,0.34;95%Cl,0.120-0.940;P=0.038).There were no differences regarding to other adverse outcomes in the two groups,including neonatal mortality,birth asphyxia,Apgar scores,RDS,pneumonia,and sepsis.Conclusions:The proportion of CS of pregnant women with PPROM was very high in China.The mode of delivery does not affect neonatal outcomes of pregnancies complicated with PPROM.展开更多
目的探讨未足月胎膜早破（preterm premature rupture of membranes，pPROM）的发病规律，分析pPROM患者不同孕周对分娩方式及围产儿结局的影响。方法对2003年1月至2007年12月间郑州大学第三附属医院的449例pPROM患者的临床资料进行回...目的探讨未足月胎膜早破（preterm premature rupture of membranes，pPROM）的发病规律，分析pPROM患者不同孕周对分娩方式及围产儿结局的影响。方法对2003年1月至2007年12月间郑州大学第三附属医院的449例pPROM患者的临床资料进行回顾性分析。结果胎膜早破的发生率为14．3％，而pPROM发生率为3．3％；pPROM相关因素的构成比中，流产、引产史最高41．0％，其次为不明原因23．8％o、多胎10．4％及感染史9．8％；在分娩的437例pPROM患者中，孕32-34^＋6周组的剖宫产率高于孕28-31^＋6周组和孕35-36^＋6周组（P=0．001）；而孕28-31^＋6周组与孕35-36^＋6周组比较，无统计学意义（P=0．78）；490例围生儿中，孕32-34^＋6周组不同分娩方式对围生儿结局比较，无统计学意义（P〉0．0166），孕28～31^＋6周组、孕32-34^＋6周组的转PICU率、新生儿窒息率及低体重儿率均高于孕35-36^＋6周组，差异有统计学意义（P=0．001）。结论流产、引产史、感染及不明原因是pPROM发生的主要影响因素；剖宫产并不是降低围生儿不良结局的最佳分娩方式；围生儿结局与孕周密切相关。展开更多
文摘Background:Preterm premature rupture of membranes(PPROM)is associated with high neonatal morbidity and mortality.However,the influences of cesarean section(CS)on neonatal outcomes in preterm pregnancies complicated with PPROM are not well elucidated.The aim of this study was to investigate the influence of delivery modes on neonatal outcomes among pregnant women with PPROM.Methods:A retrospective cross-sectional study was conducted in 39 public hospitals in 14 cities in the mainland of China from January 1st,2011 to December 31st,2011.A total of 2756 singleton pregnancies complicated with PPROM were included.Adverse neonatal outcomes including early neonatal death,birth asphyxia,respiratory distress syndrome(RDS),pneumonia,infection,birth trauma,and 5-min/10-min Apgar scores were obtained from the hospital records.Binary variables and ordinal variables were respectively calculated by binary logistic regressions and ordinal regression.Numerical variables were compared by multiple linear regressions.Results:In total,2756 newborns were involved in the analysis.Among them,1166 newborns(42.31%)were delivered by CS and 1590 newborns belonged to vaginal delivery(VD)group.The CS proportion of PPROM obviously increased with the increase of gestational age(x2=5.014,P=0.025).Compared with CS group,VD was associated with a higher risk of total newborns mortality(odds ratio[OR],2.38;95%confidence interval[Cl],1.102-5.118;P=0.027),and a lower level of pneumonia(OR,0.32;95%Cl,0.126-0.811;P=0.016).However,after multivariable adjustment and stratification for gestational age,only pneumonia was significantly related with CS in 28 to 34 weeks group(OR,0.34;95%Cl,0.120-0.940;P=0.038).There were no differences regarding to other adverse outcomes in the two groups,including neonatal mortality,birth asphyxia,Apgar scores,RDS,pneumonia,and sepsis.Conclusions:The proportion of CS of pregnant women with PPROM was very high in China.The mode of delivery does not affect neonatal outcomes of pregnancies complicated with PPROM.
文摘目的探讨未足月胎膜早破（preterm premature rupture of membranes，pPROM）的发病规律，分析pPROM患者不同孕周对分娩方式及围产儿结局的影响。方法对2003年1月至2007年12月间郑州大学第三附属医院的449例pPROM患者的临床资料进行回顾性分析。结果胎膜早破的发生率为14．3％，而pPROM发生率为3．3％；pPROM相关因素的构成比中，流产、引产史最高41．0％，其次为不明原因23．8％o、多胎10．4％及感染史9．8％；在分娩的437例pPROM患者中，孕32-34^＋6周组的剖宫产率高于孕28-31^＋6周组和孕35-36^＋6周组（P=0．001）；而孕28-31^＋6周组与孕35-36^＋6周组比较，无统计学意义（P=0．78）；490例围生儿中，孕32-34^＋6周组不同分娩方式对围生儿结局比较，无统计学意义（P〉0．0166），孕28～31^＋6周组、孕32-34^＋6周组的转PICU率、新生儿窒息率及低体重儿率均高于孕35-36^＋6周组，差异有统计学意义（P=0．001）。结论流产、引产史、感染及不明原因是pPROM发生的主要影响因素；剖宫产并不是降低围生儿不良结局的最佳分娩方式；围生儿结局与孕周密切相关。
