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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
1997-4-1
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pubmed:abstractText |
Using transcranial Doppler ultrasonography, we measured in 6 healthy young men cerebral blood flow velocity (CBFV) in the middle cerebral artery as well as oxygen saturation by a non-invasive method. Continuous recordings were taken starting from a point before the onset of sleep, throughout the duration of normal nighttime sleep, ending after awakening. During stages 2, 3 and 4, CBFV was approximately 15% lower than during the waking period preceding sleep. CBFV during rapid eye movement sleep did not differ from the presleep waking value, whereas the postsleep waking value was 6.6% lower. In 5 subjects CBFV showed a transient rise after sleep onset. Oxygen saturation was lower during sleep than during waking.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Feb
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pubmed:issn |
0013-4694
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
102
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
125-31
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pubmed:dateRevised |
2008-9-9
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pubmed:meshHeading |
pubmed-meshheading:9060863-Adult,
pubmed-meshheading:9060863-Blood Flow Velocity,
pubmed-meshheading:9060863-Brain,
pubmed-meshheading:9060863-Carbon Dioxide,
pubmed-meshheading:9060863-Humans,
pubmed-meshheading:9060863-Male,
pubmed-meshheading:9060863-Oxygen,
pubmed-meshheading:9060863-Sleep,
pubmed-meshheading:9060863-Ultrasonography, Doppler, Transcranial,
pubmed-meshheading:9060863-Wakefulness
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pubmed:year |
1997
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pubmed:articleTitle |
Changes in cerebral blood flow velocity in healthy young men during overnight sleep and while awake.
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pubmed:affiliation |
Department of Neurosurgery, Ohmihachiman City Hospital, Shiga, Japan.
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pubmed:publicationType |
Journal Article
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