晚期早产儿的母源性影响因素及其近远期风险

摘要

晚期早产儿,为胎龄介于34+ (0-7)至36 +(6-7)孕周出生的新生儿.虽然晚期早产儿的外观发育特点与足月儿相近,但因其各系统尚未完全发育成熟,导致其并发症发生率与病死率均高于足月儿.人们逐渐认识到,要降低晚期早产率必须研究其发生原因并进行本质干预.目前发现母亲孕期某些高危因素与晚期早产的发生有着密切联系,如妊娠期高血压、妊娠期贫血、胎膜早破等,并且这些母源性因素将对晚期早产儿出生后的生长发育有重要影响.%Late-preterm infants are the neonates whose gestational ages are from 34+(0-7) to 36+(67)weeks.Although they look like term infants,their organs are immature.So the incidence of complication and mortality in late-preterm infants are higher than those of term infants.Now people have gradually realized that we could reduce the incidence of late-premature birth by exploring the pathogenesis of late-premature birth and trying to intervene it.People also have found that some maternal risk factors during pregnancy lead to latepreterm birth easily,such as pregnancy hypertension,pregnancy anemia,premature rupture of membranes,etc.These factors have significant impacts on the growth and development of late-preterm infants after birth.This paper is to review the progress of some maternal factors of late-preterm infants and their short and long term risks.