Jaffa A J, Weissman A, Har-Toov J, Shoham Z, Peyser R M
Department of Obstetrics and Gynecology A, Serlin Maternity Hospital, Tel-Aviv Sourasky Medical Center, Israel.
Gynecol Obstet Invest. 1995;40(2):80-3. doi: 10.1159/000292310.
Our objective was to compare recordings of flow velocity waveforms from the uterine artery via the transvaginal and transabdominal approach in normal human pregnancies. In a cross-sectional study from 16 to 40 weeks' gestation, 88 healthy pregnant women underwent a continuous-wave Doppler examination of their uterine arteries by both the transvaginal and the transabdominal approach. Measurements were recorded for both uterine arteries and averaged. Values recorded transabdominally were significantly lower than those obtained transvaginally in all patients < or = 27 weeks' gestation. From 28 weeks to term, transabdominal values remained lower, but the difference was smaller and insignificant, and noted only as a trend. Transvaginal velocimetry of the uterine artery produces significantly higher systolic:diastolic ratios than that of transabdominal recordings until 27 weeks' gestation. Thereafter, trophoblastic invasion of the uteroplacental circulation is maximal, and the difference between the values are minimal and insignificant. However, a pattern of lower resistance in the transabdominal approach remains consistent until term.
我们的目的是比较经阴道和经腹途径获取的正常妊娠子宫动脉血流速度波形记录。在一项针对妊娠16至40周的横断面研究中，88名健康孕妇接受了经阴道和经腹途径的子宫动脉连续波多普勒检查。对双侧子宫动脉进行测量并取平均值。在所有孕周≤27周的患者中，经腹记录的值显著低于经阴道获得的值。从28周直至足月，经腹测量值仍较低，但差异较小且无统计学意义，仅表现为一种趋势。直到妊娠27周，子宫动脉经阴道测速所产生的收缩期与舒张期比值显著高于经腹记录值。此后，滋养层对子宫胎盘循环的侵入达到最大程度，两者测量值之间的差异最小且无统计学意义。然而，经腹途径较低阻力的模式一直持续到足月。
