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目的:通过彩色多普勒超声检测妊高征孕妇肾动脉血流的变化,探讨其对孕妇及胎儿的影响。方法:应用彩色多普勒超声检测115例正常妊娠孕妇及132例妊高征孕妇(重度子痫前期68例,轻度子痫前期64例)肾脏动脉主干、段动脉、叶间动脉收缩期血液峰值流速(Vs)、舒张末期血流流速(Vd)、阻力指数(RI)、搏动指数(PI)。结果:①轻度子痫前期孕妇组肾脏段动脉、叶间动脉Vs、Vd、RI、PI、S/D与正常妊娠孕妇组比较无统计学差异。②重度子痫前期孕妇组肾脏段动脉、叶间动脉Vs、RI、PI、S/D明显高于正常妊娠组(P<0.01)。结论:子痫前期重度孕妇肾动脉血流有其相应的超声改变,而其变化对母婴健康有一定的影响。彩色多普勒超声动态监测其变化,方法简便、易行、无创、可重复性强,对预测重度子痫前期孕妇状况及胎儿宫内状态具有一定的临床应用价值。
Objective: To detect the changes of renal artery blood flow in pregnant women with PIH by color Doppler sonography and to explore its effect on pregnant women and fetus. Methods: 115 cases of normal pregnant women and 132 cases of PIH pregnant women (68 cases of severe preeclampsia, 64 cases of mild preeclampsia) were examined by color Doppler sonography. The main arterial arteries, segmental arteries, Peak flow velocity (Vs), end-diastolic flow velocity (Vd), resistance index (RI), pulsatility index (PI). Results: ① There was no significant difference in Vs, Vd, RI, PI, S / D of renal artery and interlobar artery in pregnant women with mild preeclampsia compared with normal pregnant women. ② The Vs, RI, PI, S / D of renal artery and interlobar artery in severe preeclampsia group were significantly higher than those in normal pregnancy group (P <0.01). Conclusion: Renal arterial blood flow in severe pregnant women with preeclampsia has its corresponding ultrasonic changes, and its changes have a certain impact on maternal and infant health. Dynamic color Doppler ultrasound changes in monitoring, the method is simple, easy, noninvasive, reproducible, predictive of severe preeclampsia status of pregnant women and intrauterine status has some clinical value.