Changes in cerebral blood flow velocity in healthy young men during overnight sleep and while awake
Changes in cerebral blood flow velocity in healthy young men during overnight sleep and while awake
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DOI:
10.1016/s0921-884x(96)95054-7
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发表时间:
1997-02-01
期刊:
影响因子:
--
通讯作者:
Ueda, S
中科院分区:
文献类型:
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作者:
Kuboyama, T;Hori, A;Ueda, S
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 paint 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. (C) 1997 Elsevier Science Ireland Ltd.