Etiology Analysis Of The Newborn Asphyxia In Xin Jiang Province

Objection:Finding major factors by analysis of the newborn asphyxia in order to improve the obstetric quality,avoiding neonatal asphyxia occurence.Methods:Retros-pective study of 1185 patients with newborn asphyxia in the 10 years from 1996 to 2005.its methods can be described as follows 1)constituent ratio:many factors are related to neonatal asphyxia,the major factors should be find out,and to analysis newborn asphyxia ratio,including several parts:cords factors,abnormal labour course,declining placental function,prerupture of fetal membrane,disorder of amniotic fluid 2)ratio analysis:based on the gestational ages patients are devided 3 groups A 1group:＜37weeks,A2 group 37-41⁺⁶weeks,A3 group≥42week;based on the methods of the delivery,A1 is vaginal delivery group,A2 is cesarean sectoin group,A3 is vaginal assistant delivery group;based on the neonatal weights,A1 group is 2500-3999g A2 group is＜2500g,A3 group is≥4000g.3)to analysis the relationship between cesarean section rate and neonate asphyxia Results:the morbidity rate of the newborn asphyxia was 6.69%,the rate of cord factors was 35.7%,fetal malposition was 19.7%,premature labor was 13.87%,the morbidity rate of newborn asphyxia was higher in＜37weeks and≥42weeks than the normal gestational ages(x²=402.9,P＜0.05);neonate asphyxia rate in vaginal assistant delivery is higher than cesarean section and vaginal delivery (x²=178.8,P＜0.05),the rate of.neonatal asphyxia is higher in low birth weight infant than normal weight fetus and macrosomia(x²=70.0,P＜0.05);declining velocity is 4% on average in neonatal asphyxia every year,accompany the increased cesarean section while neonatal asphyxia ratio is decreased,arised cesarean section ratio is 6.2%per year, there is decrease in the number of assistant vaginal delivery and vaginal delivery,at the same time the number of newborn asphyxia is drop,declining velocity of assistant vaginal delivery is 25%on average every year,decreasing rate in vaginal delivery is 6%on average per year.Conclusion:The major courses of the newbown asphyxia are cord abnormality,premature labor and vaginal assistant delivery.With the increased cesaerean section rate and the decreased vaginal assistant delivery rate,the newborn asphyxia rate is decline.To choose the appropriate time and methods of delivery,to manage the newborn asphyxia timely,are the effective measures to decrease newborn asphyxia.