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目的探讨妊娠晚期羊水过少的原因及其对母婴健康的影响。方法对2005年1月~2009年12月352例妊娠晚期羊水过少的相关因素进行回顾性分析。结果 352例中,336例产前行B超检查,302例提示羊水过少,检出率89.9%。进一步分析妊娠晚期羊水过少的主要相关因素是脐带异常、过期妊娠、胎儿生长受限及妊娠期高血压疾病;胎儿窘迫、新生儿窒息、早产儿、足月低体重儿的发生率及剖宫产、催产素引产、阴道助产率均高于同期正常产妇。结论羊水过少与围产儿发病率及剖宫产率增高明显相关,故应加强对妊娠晚期羊水过少孕妇的产前监测,并根据羊水检查结果选择最佳的分娩方式。
Objective To investigate the causes of oligohydramnios in late pregnancy and its effects on maternal and infant health. Methods Retrospective analysis was made on 352 related factors of oligohydramnios in the third trimester of pregnancy from January 2005 to December 2009. Results Among the 352 cases, 336 cases were examined by prenatal B-ultrasound and 302 cases showed oligohydramnios. The detection rate was 89.9%. Further analysis of the main factors related to oligohydramnios in late trimester is the incidence of umbilical cord abnormalities, late pregnancy, fetal growth restriction and gestational hypertension; fetal distress, neonatal asphyxia, preterm infants, full-term low birth weight infants and cesarean section Production, oxytocin induction, vaginal delivery rate were higher than normal women during the same period. Conclusions The oligohydramnios is obviously associated with the incidence of perinatal and the increase of cesarean section rate. Therefore, we should strengthen the prenatal monitoring of oligohydramnios in late trimester of pregnancy and choose the mode of delivery according to the result of amniotic fluid examination.