The high levels of maternal serum markers was significantly associated with preeclampsia, neonatal asphyxia, fetal growth restriction, fetal demise, and abnormalplacenta.
与母血清标志物升高有关的不良结局有子痫前期、新生儿窒息、胎儿生长受限、胎儿丢失及胎盘异常。
2
Previous studies pointed to abnormal blood vessel growth that starves a developing placenta of oxygen, but researchers had little clue what set off those changes.
此前研究指出异常的血管生长使得发育中的胎盘缺氧，但研究者对引发其变化的原因找不到丝毫线索。
3
Conclusion neonatal asphyxia, birth process and fetal position abnormal, with placenta functional defect together, are the factors mainly lead to neonatal asphyxia.