论文部分内容阅读
目的探讨高危妊娠孕妇胎盘床螺旋动脉与子宫动脉的血流动力学的变化。方法高危妊娠组85例,正常妊娠组107例。经彩色多普勒超声检测孕妇胎盘床螺旋动脉及子宫动脉血流动力学,并比较高危妊娠组和正常妊娠组孕妇血管阻力参数。结果正常妊娠组孕妇子宫动脉25周后血管阻力明显下降,至33周后血管阻力参数保持稳定到分娩;高危妊娠组孕妇子宫动脉血管阻力持续无明显改变;至33周后高危妊娠组孕妇子宫动脉阻力系数明显高于正常妊娠组(P<0.05)。高危妊娠组孕妇20周后胎盘床螺旋动脉阻力明显高于同期正常妊娠组(P<0.05),两组孕妇胎盘床螺旋动脉20周后血管阻力参数保持稳定到分娩。结论应用彩色多普勒超声可显示胎盘床螺旋动脉血流动力学的变化,为早期预测高危妊娠的并发症提供依据。
Objective To investigate the hemodynamic changes of the placenta helix and uterine artery in high-risk pregnant women. Methods 85 cases of high risk pregnancy group, 107 cases of normal pregnancy group. The color Doppler ultrasound was used to detect the hemodynamics of the placenta bed spiral artery and uterine artery in pregnant women. The parameters of vascular resistance of pregnant women in high-risk pregnancy group and normal pregnancy group were compared. Results The vascular resistance of uterine arteries of pregnant women decreased obviously after 25 weeks, and the vascular resistance parameters remained stable until delivery after 33 weeks. The uterine artery resistance of pregnant women at high risk pregnancy continued no obvious change. By 33 weeks, the uterine arteries of pregnant women The resistance coefficient was significantly higher than that of the normal pregnancy group (P <0.05). After 20 weeks, the resistance of placenta helix in pregnant women with high risk pregnancy group was significantly higher than that in normal pregnancy group (P <0.05). The vascular resistance parameters of placenta bed helix in both groups remained stable after delivery to delivery. Conclusion The color Doppler ultrasound can show the changes of hemodynamics of spiral artery in placenta bed and provide evidence for the early prediction of the complications of high-risk pregnancy.