摘要
凶险性前置胎盘(PPP)合并胎盘植入可导致严重的产科并发症,明确诊断至关重要,目前超声诊断被认为是诊断胎盘植入的首选方法。研究表明不同超声征象具有不同的敏感性及特异性,综合评估可提高胎盘植入的诊断率。可通过对超声评估胎盘位置、胎盘厚度、胎盘后低回声带、膀胱壁连续性、胎盘陷窝、胎盘基底部血流信号、宫颈形态和宫颈血窦,以及既往剖宫产病史等逐项评分判断胎盘植入类型及预测出血风险,评分越高,胎盘植入越严重。总之,产前超声诊断胎盘植入类型及预测出血风险,具有很高的准确性及重要的临床指导价值。本文对超声用于PPP合并胎盘植入产前诊断及风险预测的研究进展进行综述。
Pernicious placenta previa (PPP) combined with placental implantation can lead to serious obstetric complications,and it is very important for prenatal diagnosis of PPP combined with placenta implantation.Ultrasound is currently recognized as the preferred method for diagnosing placental implantation.Some studies have shown that different ultrasound signs have different sensitivities and specificities,and comprehensive evaluation can improve the diagnostic rate of placenta implantation.Base on the position of the placenta,placental thickness,placental hypoechoic band,bladder wall continuity,placental lacuna,placental basal blood flow signal,cervical morphology and cervix sinus by ultrasound,and combined with previous cesarean section history of patients,etc,the scores can be received and can be used for evaluating the type of placental implantation and predict bleeding risk.The higher the scores are,the more severe the placental implantation is.In summary,prenatal ultrasound diagnosis of the type of placental implantation and prediction of bleeding risk has high accuracy and important clinical guiding value.
作者
刘小晖
董燕
刘小玲
张玉芳
何晓春
LIU Xiaohui;DONG Yan;LIU Xiaoling;ZHANG Yufang;HE Xiaochun(Gansu Provincial Maternity and Child Health Care Hospital,Lanzhou,Gansu Province,730050)
出处
《中国计划生育学杂志》
2019年第4期539-543,共5页
Chinese Journal of Family Planning
关键词
凶险性前置胎盘
胎盘植入
超声诊断
凶险预测
Pernicious placenta previa(PPP)
Placental implantation
Ultrasound diagnosis
Prediction of risk
