妊娠早期子宫动脉血流频谱与不良妊娠结局的相关性研究

目的探讨妊娠早期子宫动脉异常血流频谱形态及血流阻力参数值与不良妊娠结局的关系。方法于北京妇产医院建档行产前检查的孕妇共377例,在妊娠11～14周内行超声检查并检测双侧子宫动脉血流频谱,随访其妊娠结局,对比分析妊娠早期子宫动脉血流阻力参数值与妊娠期高血压疾病、妊娠期糖尿病及其与胎儿出生体重间的关系;同时分析妊娠早期子宫动脉异常血流频谱形态与妊娠期高血压疾病、低出生体重儿等不良妊娠结局间的关系。结果 (1)正常妊娠孕妇289例,妊娠早期左侧子宫动脉搏动指数(PI)、阻力指数(RI)、收缩期峰值流速/舒张末期流速(S/D)平均值与右侧比较差异无统计学意义。(2)患有慢性高血压病合并妊娠的孕妇妊娠早期子宫动脉血流阻力参数PI、RI、S/D值较正常孕妇均增高,但差异无统计学意义;妊娠早期双侧子宫动脉PI、RI较小值在妊娠期糖尿病孕妇与正常孕妇间差异有统计学意义(P=0.037、P=0.044)。(3)妊娠早期双侧子宫动脉RI平均值与胎儿出生体重呈负相关(r=-0.133,P=0.010)。(4)切迹组妊娠期高血压疾病发病率(8.3%)较无切迹组(5.5%)高;切迹组低出生体重儿发生率(7.1%)及不良妊娠结局发生率(13.1%)高于无切迹组(3.1%及8.2%);仅妊娠期糖尿病切迹组发病率为4.8%(4/84),略低于无切迹组的5.1%(15/293),但以上结果差异均无统计学意义。结论妊娠早期左侧及右侧子宫动脉血流阻力参数值比较差异无统计学意义;妊娠早期双侧子宫动脉阻力参数值与无血管病理学改变的妊娠期糖尿病相关;妊娠早期双侧子宫动脉RI平均值可用来预测胎儿出生体重。

Relevance between the first-trimester uterine artery Doppler and abnormal pregnant outcome

Objective To explore the relevance between uterine artery Doppler waveform,resistant values and abnormal pregnant outcome.Methods Three hundreds and seventy-seven pregnant women who was registereds and planned to deliver in Beijing Obstetrics and Gynecology hospital between July 2009 and July 2010 were enrolled.The resistant values of first-trimester bilateral uterine artery and Doppler waveform were measured by color Doppler in 11th-14th weeks,then followed with the pregnant outcome.The relevance between u...