Blood redistribution in the fetal brain during chronic hypoxia
(2002) In Ultrasound in Obstetrics & Gynecology 20(2). p.117-121- Abstract
- Background Studies on blood flow velocity in the fetal middle cerebral artery have revealed signs of brain sparing in chronic hypoxia. These signs of brain sparing can disappear in the terminal case, but whether this applies to the whole brain or only parts of it is unknown. Methods Velocity waveforms of the middle cerebral, anterior cerebral and posterior cerebral arteries were recorded in 221 pregnancies complicated by pregnancy-induced hypertension. The presence of brain sparing (pulsatility index < 2 standard deviations) was noted and correlated to outcome of pregnancy, including emergency operative intervention and/or neonatal distress. Results Signs of brain sparing in the anterior cerebral artery were found in 90 fetuses, and in... (More)
- Background Studies on blood flow velocity in the fetal middle cerebral artery have revealed signs of brain sparing in chronic hypoxia. These signs of brain sparing can disappear in the terminal case, but whether this applies to the whole brain or only parts of it is unknown. Methods Velocity waveforms of the middle cerebral, anterior cerebral and posterior cerebral arteries were recorded in 221 pregnancies complicated by pregnancy-induced hypertension. The presence of brain sparing (pulsatility index < 2 standard deviations) was noted and correlated to outcome of pregnancy, including emergency operative intervention and/or neonatal distress. Results Signs of brain sparing in the anterior cerebral artery were found in 90 fetuses, and in the middle cerebral and posterior cerebral arteries in 52 and 65, respectively. Signs of brain sparing in the anterior cerebral artery showed the strongest relationship to adverse perinatal outcome. The anterior cerebral artery was the only vessel in which signs of brain sparing were predictive of perinatal mortality. Conclusions Velocimetry of the anterior cerebral artery appears to be superior to that of the middle cerebral and posterior cerebral arteries as a means to predict adverse perinatal outcome. Anterior cerebral artery brain sparing may therefore be less transitory than sparing in the middle cerebral and posterior cerebral arteries, possibly suggesting that the frontal lobes are spared longer than the lateral and occipital regions of the fetal brain. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/331884
- author
- Dubiel, M ; Gunnarsson, Gudmundur LU and Gudmundsson, S
- organization
- publishing date
- 2002
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- brain, fetus, ultrasound, regional blood flow, physiology
- in
- Ultrasound in Obstetrics & Gynecology
- volume
- 20
- issue
- 2
- pages
- 117 - 121
- publisher
- John Wiley & Sons Inc.
- external identifiers
-
- pmid:12153660
- wos:000177259100003
- scopus:0036421201
- ISSN
- 1469-0705
- DOI
- 10.1046/j.1469-0705.2002.00758.x
- language
- English
- LU publication?
- yes
- id
- a2c87088-b8dc-4921-a72f-a4a0da79640e (old id 331884)
- date added to LUP
- 2016-04-01 16:05:58
- date last changed
- 2022-01-28 17:17:16
@article{a2c87088-b8dc-4921-a72f-a4a0da79640e,
abstract = {{Background Studies on blood flow velocity in the fetal middle cerebral artery have revealed signs of brain sparing in chronic hypoxia. These signs of brain sparing can disappear in the terminal case, but whether this applies to the whole brain or only parts of it is unknown. Methods Velocity waveforms of the middle cerebral, anterior cerebral and posterior cerebral arteries were recorded in 221 pregnancies complicated by pregnancy-induced hypertension. The presence of brain sparing (pulsatility index < 2 standard deviations) was noted and correlated to outcome of pregnancy, including emergency operative intervention and/or neonatal distress. Results Signs of brain sparing in the anterior cerebral artery were found in 90 fetuses, and in the middle cerebral and posterior cerebral arteries in 52 and 65, respectively. Signs of brain sparing in the anterior cerebral artery showed the strongest relationship to adverse perinatal outcome. The anterior cerebral artery was the only vessel in which signs of brain sparing were predictive of perinatal mortality. Conclusions Velocimetry of the anterior cerebral artery appears to be superior to that of the middle cerebral and posterior cerebral arteries as a means to predict adverse perinatal outcome. Anterior cerebral artery brain sparing may therefore be less transitory than sparing in the middle cerebral and posterior cerebral arteries, possibly suggesting that the frontal lobes are spared longer than the lateral and occipital regions of the fetal brain.}},
author = {{Dubiel, M and Gunnarsson, Gudmundur and Gudmundsson, S}},
issn = {{1469-0705}},
keywords = {{brain; fetus; ultrasound; regional blood flow; physiology}},
language = {{eng}},
number = {{2}},
pages = {{117--121}},
publisher = {{John Wiley & Sons Inc.}},
series = {{Ultrasound in Obstetrics & Gynecology}},
title = {{Blood redistribution in the fetal brain during chronic hypoxia}},
url = {{http://dx.doi.org/10.1046/j.1469-0705.2002.00758.x}},
doi = {{10.1046/j.1469-0705.2002.00758.x}},
volume = {{20}},
year = {{2002}},
}