Ferchiou-Cherif M, Zhioua F, Hafsia S, Hamdoun L, Jedoui A, Slim R, Meriah S
Service de gynécologie obstétrique, hôpital Aziza Othmana, Tunis, Tunisie.
Pediatrie. 1993;48(11):828-31.
The authors describe the main characteristics of the Doppler method in the early diagnosis of chronic fetal distress, and report their personal results in the study of 51 high risk pregnancies. In their study the fetal doppler ultrasound findings were correlated with birth weight related to gestational age, and neonatal morbidity. The parameters established from the doppler ultrasound assessment were the placenta resistance (calculated from the formula of Pourcelot: R = S-D/S applied to the umbilical artery) and the cerebro-placental index, Rp/Rc, Rc being the index of cerebral arterial resistance. The diagnosis performance of the method appeared very good: the Rp index was found to be highly specific for hypotrophy (85,7%) and for neonatal morbidity (90%), the RCP index adding its own good sensitivity (85% for hypotrophy and 83,3% for neonatal morbidity). The authors conclude upon the interest to study simultaneously the fetal umbilical and cerebral arterial circulations. The pathological significance of the two indexes appears different so that they are to be complementary in the evaluation of fetal distress.
作者描述了多普勒方法在慢性胎儿窘迫早期诊断中的主要特征，并报告了他们在51例高危妊娠研究中的个人结果。在他们的研究中，胎儿多普勒超声检查结果与胎龄相关的出生体重以及新生儿发病率相关。从多普勒超声评估中确定的参数是胎盘阻力（根据Pourcelot公式计算：R = S - D/S，应用于脐动脉）和脑胎盘指数Rp/Rc，其中Rc是脑动脉阻力指数。该方法的诊断性能看起来非常好：发现Rp指数对胎儿发育迟缓具有高度特异性（85.7%）和对新生儿发病率具有高度特异性（90%），RCP指数自身具有良好的敏感性（胎儿发育迟缓为85%，新生儿发病率为83.3%）。作者得出结论，同时研究胎儿脐动脉和脑动脉循环具有重要意义。这两个指数的病理意义似乎不同，因此它们在评估胎儿窘迫时具有互补性。
