Flujo sanguíneo de las arterias renales fetales en preeclámpticas graves y embarazadas normotensas sanas

Abstract

Objective To compare the blood flow in fetal renal arteries in severe preeclamptic and healthy normotensive pregnant women. Method The sample consisted of 30 women with severe preeclampsia (group A) and 30 healthy normotensive pregnant women (group B) with single pregnancies of more than 30 weeks. The pulsatility and resistance indexes of the uterine, umbilical, fetal middle cerebral and fetal renal arteries were measured. Results There were no significant differences in maternal age, gestational age or newborn weight (p = ns). Pulsatility and resistance index values in the uterine and umbilical arteries were significantly higher and both measurements for the fetal middle cerebral artery were significantly lower in group A than in group B (p = 0.0001). Pulsatility and resistance index values in the fetal renal artery were significantly higher in group A than in group B (p = 0.0001). The fetal renal artery pulsatility index was significantly correlated with the pulsatility index of the uterine artery (p = 0.011) and the fetal middle cerebral artery (p < 0.007). The fetal renal artery resistance index was correlated with the resistance index of the three vessels (p < 0.05). Conclusion Women with severe preeclampsia show blood flow alterations in the fetal renal arteries compared with healthy normotensive pregnant women.