胎儿脐动脉和大脑中动脉阻力指标比值在预测胎儿宫内窘迫的临床价值

Prediction of Fetal Distress Using Resistant Parameter Rations of Fetal Umbilical Artery to Middle Cerebral Artery in Pregnancy

目的探讨妊娠期胎儿脐动脉和大脑中动脉阻力指标比值在预测胎儿宫内窘迫的意义。方法应用彩色多普勒超声检测95例正常妊娠胎儿和135例宫内窘迫胎儿的脐动脉(UA)以及大脑中动脉(MCA)的阻力指数(RI)、搏动指数(PI)及S/D值,并对UA及MCA的各项指标比值进行计算。结果观察组胎儿UA阻力指标高于对照组(P<0.05),MCA阻力指标均低于对照组(P<0.05),UA和MCA阻力指标比值均高于正常组(P<0.05)。结论利用胎儿脐动脉和大脑中动脉阻力指标比值预测胎儿宫内窘迫具有较高的临床应用价值。

OBJECTIVE To study the diagnostic value of the resistance parameter ratios of fetal umbilical artery（UA） to middle cerebral artery（MCA） in predicting fetal distress in pregnancy. METHODS Color Doppler was used to examine fetal UA and MCA blood flow waveforms in two groups： normal pregnancy（95 cases） and pregnancy with fetal distress（135 cases）. The resistant index（RI）, pulsatili- ty index（PI） and peak systolic to end diastolic ratio（S/D） were evaluated and the resistant parameter ratio of UA to MAC were calculat- ed and analyzed. RESULTS The RI, PI and S/D of fetal UA in the patient group were significantly higher than those in the normal group（P〈0.05） and RI, PI and S/D of fetal MCA were lower than those of normal group（P〈0.05）. CONCLUSION The resistant pa- rameter ratios of fetal UA and MCA have great value in predicting fetal distress.