[Effect of nifedipine on fetal heart rate in pre-eclamptic patients]. / Efecto de la nifedipina sobre la frecuencia cardiaca fetal en pacientes preeclámpticas.

From March 1st to October 31, 1989, we studied 23 women with diagnosis of severe preeclampsia, the gestational age in all of them was at least 34 weeks. A tococardiograph registry was obtained during 20 minutes prior to any management, after that a standardized management was started; nifedipine 10 mg sublingual was administered, and 20 minutes later, a new registry was obtained. In spite of a significative descent of arterial pressure, we did not find any significative change in the fetal heart rate, accelerations, variability, or in the fetal motility.