摘要
用彩色多普勒超声监测正常妊娠妇女４３例、妊高征孕妇３６例脐动脉血流，计算Ｓ／Ｄ值、脉搏指数（ＰＩ）、阻力指数（ＲＩ）。结果：正常妊娠时上述各指标随孕周的增加逐渐下降，表明胎盘为低循环阻力器官，其阻力随孕龄增加而下降。妊高征时各指标随妊娠进展而逐渐上升，当Ｓ／Ｄ＞２．８、ＰＩ＞１．７、ＲＩ＞０．７时胎儿窘迫发生率增加，围产儿异常结果占５３．１％（１９／３６），明显高于正常妊娠组的４．９％（２／４３）（Ｐ＜０．０５）。提示：对胎儿的脐动脉血流进行监测，可监护胎儿宫内状况并对妊娠结局有预测价值。
Color Doppler was used to examine the blood flow velocity waveforms of fetal umbilical artery(UA) in normal pregnancy(43 cases) and pregnancy-induced hypertension(PIH)(36 cases). The peak-systolic/diastolic ratio(S/D), pulse index (PI) and resistance index(RI) values of UA were calculated. The results showed that the values of UA in normal pregnancy decreased with the advance of gestational age, these demonstrated that the placental resistance decreased with the advance of gestational age. In contrast to normal pregnancy,the values of UA in PIH increased with the advance of gestational age,the difference of two groups were significant (P<0. 05-0.01). When S/D>2.8, PI>1.7, RI>0.7, the fetus was at risk of hypoxia and distress, the abnormal pregnancy outcomes were 53.1%(19/36) in PIH and 4. 9%(2/43 ) in normal pregnancy respectively, the difference was significant(P<0. 05).Our study suggests that the umbilical artery Doppler is a valuable method of fetal monitoring and useful in predicting fetal prognosis.
出处
《滨州医学院学报》
1996年第6期535-536,共2页
Journal of Binzhou Medical University
关键词
脐动脉
血流速度
妊娠高血压
胎儿
umbilical artety
blood flow velocity
pregnancy-induced hypertension
