Carotid artery plaque detected on ultrasound is associated with impaired cognitive state in the elderly: A population-based study in Wakiso district, Uganda.

Journal: Journal of clinical neuroscience : official journal of the Neurosurgical Society of Australasia

Volume: 68

Issue: 

Year of Publication: 2019

Affiliated Institutions:  Department of Radiology, School of Medicine, P.O. Box , Kampala, Uganda. Electronic address: mworozikenneth@gmail.com. Department of Radiology, Makerere University College of Health Sciences, P.O. Box , Kampala, Uganda. Department of Radiology, Mulago National Referral Hospital, P.O. Box , Kampala, Uganda. Department of Psychiatry, Makerere University College of Health Sciences, P.O. Box , Kampala, Uganda.

Abstract summary 

Carotid artery disease which includes carotid artery stenosis, plaques, clots and increased intima media thickness, have been reported by many studies to be associated with dementia. Dementia is an end stage of usually asymptomatic cognitive impairment. Risk factors of carotid artery disease include; age, atherosclerosis, arteriosclerosis, shorter years in school, history of hypertension, diabetes mellitus, stroke and depression. This study set out to determine the prevalence of abnormal carotid ultrasound findings and their association with cognitive function among the adults ≥60 years in Wakiso district, Uganda in 2018. A total of 210 participants were included. Carotid artery stenosis, presence of plaque, stenosis and intima-media thickness were assessed by ultrasound. Cognitive status was assessed using a Mini Mental State Exam (MMSE) test. The prevalence of plaque was 21.4%. Variables which included; presence of plaque, age, education, gender, marital status, whether participant stayed alone or with someone else, care for self, occupation status, division of staying and history of smoking. The presence of plaque was associated with an abnormal cognitive function at both univariate and multivariate analysis with respective OR = 3.8 (95% CI = 1.90-7.54, p-value = 0.0001) and OR = 3.4 (95% CI = 1.38-8.15, p-value = 0.007). The cognitive function distribution was 43.8%, 19%, 34.3% and 2.9% within the normal, mild, moderate, and severe cognitive function status respectively. This study showed that prevalence of carotid artery plaque was high in this elderly population in Wakiso district Uganda. Also, carotid artery plaque was associated with abnormal cognitive function.

Authors & Co-authors:  Mworozi Kenneth K Ameda Faith F Byanyima Rosemary K RK Nakasujja Noeline N

Study Outcome 

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Citations : 
Authors :  4
Identifiers
Doi : 10.1016/j.jocn.2019.06.011
SSN : 1532-2653
Study Population
Male,Female
Mesh Terms
Aged
Other Terms
Abnormal cognitive function;Carotid artery disease;Carotid artery plaque;Carotid ultrasound;Elderly;Intima-media thickness;Mini-mental state examination
Study Design
Cross Sectional Study
Study Approach
Country of Study
Uganda
Publication Country
Scotland