Kirkinen P, Ordén M R, Partanen K
Department of Obstetrics and Gynecology, University of Kuopio, Finland.
Acta Obstet Gynecol Scand. 1997 Apr;76(4):308-12. doi: 10.1111/j.1600-0412.1997.tb07983.x.
BACKGROUND AND MATERIAL: In order to evaluate cerebral blood flow changes associated with fetal intracranial hemorrhages, ultrasound and MRI examinations were carried out in four pregnancies with this complication.
Increased resistance indices of the blood flow profile of the middle cerebral artery were detected in three of the fetuses, two of them presenting retrograde diastolic flow. Flow became normalized in one case within four weeks, changing on the contralateral side to an increased diastolic flow pattern.
Increased intracranial pressure can cause these flow changes, but cerebral blood flow autoregulation need not be completely ruined in this complication.
背景与材料：为评估与胎儿颅内出血相关的脑血流变化，对4例患有该并发症的妊娠进行了超声和MRI检查。
3例胎儿检测到大脑中动脉血流频谱阻力指数增加，其中2例出现舒张期逆向血流。1例在4周内血流恢复正常，对侧转变为舒张期血流增加模式。
颅内压升高可导致这些血流变化，但在该并发症中脑血流自动调节功能不一定完全受损。
