van den Wijngaard J A, Groenenberg I A, Wladimiroff J W, Hop W C
Department of Obstetrics and Gynaecology, Erasmus University Rotterdam, The Netherlands.
Br J Obstet Gynaecol. 1989 Jul;96(7):845-9. doi: 10.1111/j.1471-0528.1989.tb03326.x.
Maximal flow velocity waveforms were recorded in the internal carotid artery (ICA), middle cerebral artery (MCA), posterior cerebral artery (PCA) and anterior cerebral artery (ACA) in 55 normal pregnancies and 14 complicated by intrauterine growth retardation between 25 and 41 weeks gestation. In normal pregnancy, acceptable flow velocity waveforms were obtained in the ICA in 89%, in the MCA in 91%, in the PCA in 58% and in the ACA in 64%. A decrease in pulsatility was observed in all four intracranial arteries during the latter weeks of gestation. In growth-retarded pregnancies, pulsatility in all vessels was significantly reduced compared with normal pregnancy, suggesting participation of all major intracranial arteries in a brain-sparing effect in the presence of chronic fetal hypoxia.
在55例正常妊娠和14例合并宫内生长受限的妊娠中，于妊娠25至41周期间记录了颈内动脉（ICA）、大脑中动脉（MCA）、大脑后动脉（PCA）和大脑前动脉（ACA）的最大血流速度波形。在正常妊娠中，89%的ICA、91%的MCA、58%的PCA和64%的ACA获得了可接受的血流速度波形。在妊娠后期，观察到所有四条颅内动脉的搏动性均降低。在生长受限的妊娠中，与正常妊娠相比，所有血管的搏动性均显著降低，提示在慢性胎儿缺氧情况下，所有主要颅内动脉均参与了脑保护效应。
