Cerebral autoregulation in cerebral vascular disease
- VernacularTitle:脑血管病患者的脑血流自身调节潜力分析
- Author:
Qing PENG
;
Yi-Ning HUANG
;
- Publication Type:Journal Article
- Keywords:
Cerebrovascular accident;
Cerebrovascular circulation;
Tilt-table test;
Ultra sonography,doppler,transcranial
- From:
Chinese Journal of Neurology
1999;0(06):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate cerebral autoregulation in cerebral vascular disease using transeranial Doppler(TCD)-CO_2 test and head-upright tilt test(HUTT).Methods Thirty-two patients with occlusive cerebral vascular disease (group A),28 cerebral infarction patients without stenosis (group B), and 26 controls were included.Cerebrovascular reactivity was calculated in terms of the breath-holding index (BHI) and vascular motor reactivity (VMR) by TCD-CO_2 test.Changes of cerebral blood flow velocity (CBFV),blood pressure (BP) and heart rate (HR) were detected during HUTT to assess the cerebral pressure-autoregulation.Results Compared with controls,VMR decreased in group A and B,being 0.18?0.02,0.26?0.04 respectively,and so did BHI,being 0.76?0.15,1.05?0.15 respectively with significance(P
