Howarth G R, Pattinson R C, Kirsten G, Truter H, Odendaal H J
Department of Obstetrics and Gynaecology, University of Stellenbosch, CP.
S Afr Med J. 1992 Mar 7;81(5):248-50.
The value of early intrapartum umbilical artery Doppler velocimetry in the prediction of fetal compromise was studied. One hundred patients were recruited into the study and fetal compromise was diagnosed by abnormal first- or second-stage fetal heart rate traces, a 5-minute Apgar score less than 7, or the development of hypoxic ischaemic encephalopathy. Fetal compromise developed in 30 patients. An umbilical artery resistance index (RI) of 0.66 or less did not predict fetal compromise (sensitivity 13%, specificity 89%, positive predictive value 25%, negative predictive value 70%). Since the mean umbilical artery RI was identical in the compromised and the non-compromised groups, we conclude that early intrapartum Doppler velocimetry is of very little clinical value in predicting fetal compromise at term.
研究了产时早期脐动脉多普勒血流速度测定法在预测胎儿窘迫方面的价值。100名患者被纳入该研究，胎儿窘迫通过第一产程或第二产程异常的胎心监护、5分钟Apgar评分低于7分或缺氧缺血性脑病的发生来诊断。30名患者出现了胎儿窘迫。脐动脉阻力指数（RI）为0.66或更低并不能预测胎儿窘迫（敏感性13%，特异性89%，阳性预测值25%，阴性预测值70%）。由于在出现胎儿窘迫和未出现胎儿窘迫的两组中平均脐动脉RI相同，我们得出结论，产时早期多普勒血流速度测定法在预测足月胎儿窘迫方面临床价值很小。
