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本文头位阴道分娩新生儿窒息发生率为7.02％,窒息儿死亡率为2.27％。造成新生儿窒息的前三位原因是脐带异常、胎盘功能障碍及宫缩过频过强。本文结果表明63.18％窒息儿有宫内窘迫,新生儿脐带缠绕者窒息发生率为11.20％;头位阴道难产儿窒息率显著高于顺产儿,尤以头吸产儿窒息率高达25.53％;出生体重<2 500g及≥4 000g,胎龄<33周及≥41周的新生儿窒息发生率显著增加。作者指出产前B超检查认真探查胎儿颈部,减少脐带绕颈漏诊率,产间连续宫缩胎心监护并适时破膜了解羊水性状,可以尽早发现胎儿窘迫,预防新生儿窒息。
This article first vaginal birth neonatal asphyxia was 7.02%, neonatal asphyxia mortality was 2.27%. The first three causes of neonatal asphyxia are abnormalities in the umbilical cord, placental dysfunction and contractions too often. The results of this study showed that 63.18% of children with asphyxia had intrauterine distress, the rate of asphyxia of neonates with umbilical cord entanglement was 11.20%, the rate of asphyxia of vaginal dystocia was significantly higher than that of normal children, especially asphyxia rate was 25.53% <2 500g and ≥ 4000g, neonatal asphyxia at <33 weeks and> 41 weeks gestational age were significantly increased. The author pointed out that prenatal B-ultrasound to carefully explore the fetal neck, umbilical cord around the neck to reduce the rate of missed diagnosis, inter-uterine continuous fetal contraction fetal heart rate monitoring and timely understanding of amniotic fluid properties, fetal distress can be found as soon as possible to prevent neonatal asphyxia.