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Common Carotid Flow Velocity is Associated with Cognition in Older Adults

Published online by Cambridge University Press:  02 December 2014

Guo-Xiang Fu ,
Ya Miao ,
Hong Yan  and
Yuan Zhong
Guo-Xiang Fu
Affiliation:
Department of Gerontology, Shanghai Jiao Tong University affiliated sixth people's Hospital, Shanghai, PR China
Ya Miao
Affiliation:
Department of Gerontology, Shanghai Jiao Tong University affiliated sixth people's Hospital, Shanghai, PR China
Hong Yan
Affiliation:
Department of Gerontology, Shanghai Jiao Tong University affiliated sixth people's Hospital, Shanghai, PR China
Yuan Zhong*
Affiliation:
Department of Gerontology, Shanghai Jiao Tong University affiliated sixth people's Hospital, Shanghai, PR China
*
Department of Gerontology, Shanghai Jiao Tong University affiliated sixth people's Hospital, No. 600, yi Shan road, Shanghai, 200233, PR China. Email: zhongyuan60@126.com
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Abstract

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Aims:

To assess the relationship between carotid flow velocity and cognitive impairment in patients with mild-moderate (<50%) carotid artery disease.

Methods:

We studied 407 participants with available carotid ultrasound and cognitive measures. We related peak systolic velocity (PSV) and end diastolic velocity (EDV) of internal carotid artery (ICA) and common carotid artery (CCA) and intimal medial thickness (IMT) to Mini Mental State Examination (MMSE), Clock Draw Test (CDT), Activities of Daily Living Scale (ADL)and Montreal Cognitive Assessment (MoCA).

Results:

EDV of CCA was significantly different in higher and lower MoCA (MMSE) groups. Multiple regression analysis demonstrated that lower EDV was significantly associated with lower MoCA (+0.459 per standard deviation (SD), p<0. 01 for the left; +0.539 per SD, p<0. 01 for the right) and CDT (odds ratio (OR) 0.093, p< 0.05 for the left; OR) 0.120, p<0. 01 for the right) scores. PSV of left CCA (-0.205 per SD, p<0.05) and IMT (+42.536 per SD, p< 0.001) were associated with ADL. PSV of right CCA was associated with MMSE (+0.081 per SD, p<0.001). No significant relationship between ICA flow velocity and cognitive performance was observed.

Conclusions:

Our preliminary data show that common carotid artery flow velocity was associated with cognitive performance.

Type
Original Article
Information
Canadian Journal of Neurological Sciences , Volume 39 , Issue 4 , July 2012 , pp. 502 - 507
Copyright
Copyright © The Canadian Journal of Neurological 2012

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