MIDDLE CEREBRAL-ARTERY FLOW VELOCITY WAVE-FORMS IN FETAL HYPOXEMIA

被引：240

作者：

VYAS, S ^{[1
]}

NICOLAIDES, KH ^{[1
]}

BOWER, S ^{[1
]}

CAMPBELL, S ^{[1
]}

机构：

[1] UNIV LONDON KINGS COLL HOSP,HARRIS BIRTHRIGHT RES CTR FETAL MED,DEPT OBSTET & GYNAECOL,LONDON SE5 8RX,ENGLAND

来源：

BRITISH JOURNAL OF OBSTETRICS AND GYNAECOLOGY | 1990年 / 97卷 / 09期

关键词：

D O I：

10.1111/j.1471-0528.1990.tb02573.x

中图分类号：

R71 [妇产科学];

学科分类号：

100211 ;

摘要：

Summary. In 81 small‐for‐gestational age fetuses (SGA) colour flow imaging was used to identify the fetal middle cerebral artery for subsequent pulsed Doppler studies. Impedence to flow (pulsatility index; PI) was significantly lower, and mean blood velocity was significantly higher, than the respective reference ranges with gestation. Fetal blood sampling by cordocentesis was performed in all SGA fetuses and a significant quadratic relation was found between fetal hypoxaemia and the degree of reduction in the PI of FVWs from the fetal middle cerebral artery. Thus, maximum reduction in PI is reached when the fetal PO2 is 2‐4 SD below the normal mean for gestation. When the oxygen deficit is greater there is a tendency for the PI to rise, and this presumably reflects the development of brain oedema. Copyright © 1990, Wiley Blackwell. All rights reserved

引用

页码：797 / 803

页数：7

共 11 条

[1] MEAN BLOOD VELOCITIES AND FLOW IMPEDANCE IN THE FETAL DESCENDING THORACIC AORTA AND COMMON CAROTID-ARTERY IN NORMAL-PREGNANCY [J].