异位妊娠时子宫及输卵管动脉血液循环特征及诊断价值

目的明确异位妊娠（ectopic pregnancy,EP）时子宫及输卵管动脉血流动力学特点,评估其诊断价值。方法选择98例经阴道超声检查诊断为输卵管妊娠并经手术全部证实的患者,测量子宫动脉及输卵管动脉阻力指数及搏动指数。结果子宫动脉及输卵管动脉阻力指数及搏动指数不随孕龄改变;异位妊娠侧血流量明显增加,与对侧相比较有明显差异,与孕龄无明显相关性。结论与子宫动脉主干血流指标相比,异位妊娠时患侧输卵管动脉参数指标变化更为明显,而且患侧供血较对侧明显增加。

Assessment of uterine and tubal artery blood flow and clinical application in ectopic pregnancy

Objective To determine the effect of abnormal implantation on uterine circulation and to evaluate whether the assessment of uterinal blood flow can provide additional information for the diagnosis of tubal pregnancies.Methods 98 patients with ectopic pregnancy were examined by transvaginal color Doppler immediately before surgery.Resistance and pulsatility indices of blood flow in the uterine and tubal arteries were measured.Results The blood flow parameters of the uterine and tubal arteries did not change with gestional age.There was a significant increase in blood flow on the side with the tubal gestation.Differences between sides were higher in the tubal arteries than in the main uterine arteries and showed no dependence on gestational age.Conclusion The abnormal implantation and tubal trophoblast invasion in ectopic pregnancy can cause more marked blood flow changes in the adjacent supplying vessels than in the main uterine arteries.