彩色多普勒监测胎儿腹主动脉血流预测胎儿宫内状况

运用彩色多普勒监测正常妊娠、妊高征、合并ＩＵＧＲ的妊高征胎儿的腹主动脉血流，计测血流Ｓ／Ｄ值、ＰＩ值、ＲＩ值。结果表明，妊高征组（合并或不合并ＩＵＧＲ）胎儿腹主动脉血流Ｓ／Ｄ值大于４、ＰＩ值大于１．８、ＲＩ值大于０．８时，围产儿结局异常占５０％。当血流阻力指标异常升高时，应考虑胎儿窘迫或ＩＵＧＲ的发生。当异常波形出现时，说明血流阻力指标升高，血流量减小。胎儿宫内状况差，预后不良的发生率高。该监测方法可及早发现异常，及时处理、降低围产儿死亡率。

Clinical Significance of Fetal Abdominal Aorta Blood Flow Examination in Pregnancy Hypertensive Syndrome

Color Doppler was used to examine the flow-velocity waveforms of fetal abdominal aorta in both normal pregnancy and pregnancy hypertensive syndrome(with IUGR or not).The S/D,PI,RI values were calculated.When the S/D value was more than 4,PI more than 1.8,RI more than 0.8,the perinatal abnormality rate was 50%.The significant increase of resistance index suggested IUGR or tetal distress.The occurring of ab-normal waveforms suggested large resistance,inadequate blood flow and serious situation of the tetus,By this means,we can find abnormality earlier and treat it immediately to lower the mortality of perinatus.