胎盘边缘厚度与宫颈管长度对前置胎盘孕妇预后的预测价值

Prognostic value of placental marginal thickness and cervical canal length in pregnant women with placenta previa

目的:探讨超声评估的胎盘边缘厚度及宫颈管长度对前置胎盘孕妇预后的预测价值。方法:回顾性分析2017年1月至2019年6月在汕头大学医学院第二附属医院产前检查诊断为前置胎盘的孕妇103例,妊娠28周至临产前测量胎盘边缘厚度和宫颈管长度,统计产前出血、急诊剖宫产、早产、产后出血的情况。结果:胎盘边缘增厚组与正常组相比,产前出血、早产、产前出血致剖宫产、产后出血等发生率均明显升高(P<0.01);宫颈管长度缩短组与正常组相比,产前出血、早产、产前出血致剖宫产、产后出血等发生率均明显升高(P<0.01)。结论:在前置胎盘孕妇妊娠28周至临产前经超声检测评估胎盘边缘厚度及宫颈管长度有助于预测不良妊娠结果。

Objective:To explore the value of ultrasound in predicting the prognosis of pregnant women with placenta previa by evaluating the thickness of placenta margin and the length of cervical canal. Methods:103 pregnant women with placenta previa diagnosed in the Second Affiliated Hospital of Shantou University Medical College from January 2017 to June 2019 were retrospectively analyzed. From the 28 th week of gestation to the pre delivery,the thickness of placenta margin and the length of cervical canal were measured,and the situation of prenatal hemorrhage, emergency cesarean section, premature delivery and postpartum hemorrhage were analyzed. Results: Compared with the normal group, the incidence of antepartum hemorrhage, premature delivery, cesarean section and postpartum hemorrhage caused by antepartum hemorrhage were significantly higher in the placenta margin thickening group(P<0.01);compared with the normal group, the incidence of antepartum hemorrhage, premature delivery, cesarean section caused by antepartum hemorrhage and postpartum hemorrhage were significantly higher in the cervical tube length shortening group(P<0.01). Conclusion:The length of cervical canal and the thickness of placenta margin can be used to predict the adverse pregnancy outcome.