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中华医学超声杂志(电子版) ›› 2025, Vol. 22 ›› Issue (06) : 556 -563. doi: 10.3877/cma.j.issn.1672-6448.2025.06.009

妇产科超声影像学

母胎超声参数对复发性流产孕妇不良妊娠结局的预测价值
汪浪1, 何怡华2, 李征毅3, 刘翠云1, 颉剑锋1, 陈健3,()   
  1. 1518055 深圳,南方科技大学医院超声科
    2100029 首都医科大学附属北京安贞医院心脏超声医学中心
    3518035 深圳市第二人民医院超声科
  • 收稿日期:2025-03-13 出版日期:2025-06-01
  • 通信作者: 陈健
  • 基金资助:
    国家自然科学基金项目(82170301)

Predictive value of maternal and fetal ultrasound parameters for adverse pregnancy outcomes in pregnant women with recurrent miscarriage

Lang Wang1, Yihua He2, Zhengyi Li3, Cuiyun Liu1, Jianfeng Xie1, Jian Chen3,()   

  1. 1Department of Ultrasound, Southern University of Science and Technology Hospital, Shenzhen 518055, China
    2Beijing Key Laboratory of Maternal-Fetal Medicine and Fetal Heart Disease, Echocardiographic Medical Center, Beijing Anzhen Hospital Affiliated to Capital Medical University, Beijing 100029, China
    3Department of Ultrasound, Shenzhen Second People’s Hospital, Shenzhen 518035, China
  • Received:2025-03-13 Published:2025-06-01
  • Corresponding author: Jian Chen
引用本文:

汪浪, 何怡华, 李征毅, 刘翠云, 颉剑锋, 陈健. 母胎超声参数对复发性流产孕妇不良妊娠结局的预测价值[J/OL]. 中华医学超声杂志(电子版), 2025, 22(06): 556-563.

Lang Wang, Yihua He, Zhengyi Li, Cuiyun Liu, Jianfeng Xie, Jian Chen. Predictive value of maternal and fetal ultrasound parameters for adverse pregnancy outcomes in pregnant women with recurrent miscarriage[J/OL]. Chinese Journal of Medical Ultrasound (Electronic Edition), 2025, 22(06): 556-563.

目的

探讨复发性流产(RSA)孕妇孕中晚期母胎超声参数与妊娠结局的关系及超声参数评估不良妊娠结局(APO)的效能。

方法

前瞻性选取2022年6月至2024年2月在深圳市第二人民医院生殖科于孕25~31周诊断为RSA的孕妇61例。超声监测母体双侧子宫动脉(UtA)血流参数[搏动指数(PI)、阻力指数(RI)],胎儿大脑中动脉(MCA)血流参数[收缩期峰值流速(PSV)、PI],胎儿脐动脉(UA)血流参数[收缩期峰值流速与舒张期末流速比值(S/D)、RI和PI];通过计算UtA-PI及UtA-RI的平均值,得出平均搏动指数(MPI)和平均阻力指数(MRI);根据公式计算脑胎盘比(CPR) [CPR=MCA-PI/UA-PI],同时监测腹内段脐静脉(IUV)及游离段脐静脉(FUV)内径(D)和时间平均峰值流速(TAmax);根据公式计算脐静脉血流量(UVBF) [Q=0.5 TAmax×π×(D/2)2]。随访妊娠结局,将61例孕妇分为正常妊娠结局组及APO组;分析母胎超声参数与APO的相关性及预测价值。

结果

61例孕妇中,发生APO 25例。APO组孕妇UtA-MPI、UtA-MRI及胎儿IUV-D、FUV-D、游离段脐静脉血流量(FUVBF)均高于正常妊娠结局组,差异均有统计学意义[0.85±0.24 vs 0.71±0.16,0.53±0.09 vs 0.48±0.07,0.50(0.45,0.54)vs 0.47(0.43,0.51),0.63±0.07 vs 0.57±0.06,159.92±48.38 vs 131.41±38.40;P均<0.05]。Lasso回归分析结果显示,IUV-D、FUV-D、UtA-MPI为与APO相关的预测因子。上述3项指标预测APO的ROC曲线下面积分别为0.653、0.718、0.666,3项指标联合预测的ROC曲线下面积为0.839(95%CI:0.732~0.946),敏感度为64.0%,特异度为97.2%。

结论

RSA孕妇在妊娠25~31周时的孕妇UtA-MPI、UtA-MRI及胎儿IUV-D、FUV-D、FUVBF与妊娠结局有关。IUV-D、FUV-D及UtA-MPI可作为预测APO的重要指标,联合预测具有较好的预测效能,对指导高危妊娠具有一定的临床价值。

Objective

To investigate the relationship between maternal and fetal ultrasound parameters and pregnancy outcomes in pregnant women with a history of recurrent miscarriage (RSA) in the second and third trimesters of pregnancy and their efficacy in assessing the occurrence of adverse pregnancy outcomes (APOs).

Methods

From June 2022 to February 2024, we prospectively selected 61 pregnant women diagnosed with RSA who were seen at 25-31 weeks of pregnancy in the Department of Reproductive Medicine of Shenzhen Second People’s Hospital. We measured the pulsatility index (PI) and resistance index (RI) of the maternal bilateral uterine artery (UtA) and monitored the peak systolic flow velocity (PSV) and pulsatility index (PI) of the fetal middle cerebral artery (MCA) as well as the peak-systolic-velocity/end-diastolic-velocity (S/D) ratio, resistance index (RI), and PI of the fetal umbilical artery (UA). The mean pulsatility index (MPI) and mean resistance index (MRI) were derived by calculating the mean values of the UtA-PI and UtA-RI. We calculated the cerebroplacental ratio (CPR) according to the formula [CPR=MCA-PI/UA-PI]. We simultaneously measured the diameter (D) and time-averaged peak flow rate (TAmax) of the intra-abdominal umbilical vein (IUV) and the free loop of the umbilical vein (FUV), and calculated the umbilical vein blood flow (UVBF) according to the formula [Q=0.5TAmax×π×(D/2)2]. Pregnancy outcomes were followed, and the women were divided into either a normal pregnancy outcome group or an APO group. The correlation of maternal-fetal ultrasound parameters with APO was analysed, and their predictive value for APO was assessed.

Results

Among the 61 pregnant women, 25 had APO. At 25-31 weeks of pregnancy, there were no statistically significant differences in fetal MCA-PSV, MCA-PI, UA-S/D ratio, UA-PI, UA-RI, IUV-TAmax, intra-abdominal umbilical vein blood flow (IUVBF), or FUV-TAmax between the two groups (P>0.05). Maternal UtA-MPI and UtA-MRI, as well as fetal IUV-D, FUV-D and FUVBF, were significantly higher in women with APO compared to those with normal pregnancy outcomes (0.85±0.24 vs 0.71±0.16, 0.53±0.09 vs 0.48±0.07, 0.50 [0.45, 0.54] vs 0.47 [0.43, 0.51], 0.63±0.07 vs 0.57±0.06, and 159.92±48.38 vs 131.41±38.40, respectively; P<0.05). Lasso regression was employed to identify three predictors of APO, which were IUV-D, FUV-D, and UtA-MPI. The AUC for the above three indexes to predict APO was 0.653, 0.718, and 0.666, respectively; the AUC of their combination was 0.839, with a sensitivity of 64.0% and specificity of 97.2%.

Conclusion

Maternal UtA-MPI and UtA-MPI, as well as fetal IUV-D, FUV-D, and FUVBF at 25-31 weeks of gestation in patients with RSA are associated with pregnancy outcomes. IUV-D, FUV-D, and UtA-MPI are important predictors of APO, and the combination of them has better predictive efficacy, which is clinically valuable in guiding high-risk pregnancies.

表1 不良妊娠结局组与正常妊娠结局组RSA患者基线资料比较
表2 不良妊娠结局组与正常妊娠结局组RSA患者子宫动脉相关血流参数比较(±s
表3 不良妊娠结局组与正常妊娠结局组RSA患者的胎儿大脑中动脉相关血流参数比较(±s
表4 不良妊娠结局组与正常妊娠结局组RSA患者的胎儿脐动脉相关血流参数比较(±s
表5 不良妊娠结局组与正常妊娠结局组RSA患者的胎儿脐静脉相关血流参数比较
图1 Lasso系数路径图与回归分析交叉验证曲线。图a为Lasso系数路径图(上横坐标表示模型中非零系数的个数,下横坐标表示标准化后的系数向量log(λ),纵坐标是回归系数的值,垂直线对应于通过10倍交叉验证和拟合所选择的非零特征);图b为Lasso回归分析交叉验证曲线(纵坐标为交叉验证的误差,上横坐标为不同λ值对应的变量数,下横坐标为lambda惩罚系数的对数log(λ),模型采用10倍交叉验证方法,通过调整λ的不同参数,使模型的二项偏差最小,从而筛选出具有较高诊断价值的指标)。图中左侧虚线对应的参数(lambda. min)表示最小均方误差时的λ值,对应的变量数为4个;右侧虚线对应的参数(lambda.1se)代表最小λ右侧的1个标准误时的λ值,对应的变量数为3个
图2 IUV-D、FUV-D、UtA-MPI预测不良妊娠结局的ROC曲线注:IUV-D为腹内段脐静脉内径;FUV-D为游离段脐静脉内径;UtA-MPI为子宫动脉平均搏动指数
表6 孕中晚期脐静脉、子宫动脉超声参数对RSA孕妇APO的预测价值
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