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Article type: Review Article
Authors: Gibson, Madelinea | Yiallourou, Stephaniea | Pase, Matthew P.a; b; *
Affiliations: [a] The Turner Institute for Brain and Mental Health, Monash University, Clayton, VIC, Australia | [b] Harvard T.H. Chan School of Public Health, Boston, MA, USA
Correspondence: [*] Correspondence to: A/Prof Matthew P. Pase, 18 Innovation Walk, Monash University, Clayton, Australia, 3800. Tel.: +61 401 267 924; E-mail:matthewpase@gmail.com.
Abstract: Midlife hypertension increases risk for dementia. Around one third of adults have diagnosed hypertension; however, many adults are undiagnosed, or remain hypertensive despite diagnosis or treatment. Since blood pressure (BP) follows a circadian rhythm, ambulatory BP monitoring allows for the assessment of BP over a 24-hour period and provides an important tool for improving the diagnosis and management of hypertension. The measurement of 24-hour BP profiles, especially nocturnal BP, demonstrate better predictive ability for cardiovascular disease and mortality than office measurement. However, few studies have examined 24-hour BP profiles with respect to dementia risk. This is an important topic since improvements in BP management could facilitate the primary prevention of vascular cognitive impairment and dementia. Therefore, this review discusses the evidence linking BP to dementia, with a focus on whether the implementation of 24-hour BP measurements can improve risk prediction and prevention strategies. Pathways linking nocturnal BP to dementia are also discussed as are risk reduction strategies. Overall, limited research suggests an association between 24-hour BP elevation and poorer cognition, cerebral small vessel disease, and dementia. However, most studies were cross-sectional. Further evidence is needed to substantiate 24-hour BP profiles, over and above office BP, as predictors of vascular cognitive impairment and incident dementia.
Keywords: Alzheimer’s disease, ambulatory monitoring, blood pressure, dementia, hypertension
DOI: 10.3233/JAD-230400
Journal: Journal of Alzheimer's Disease, vol. 94, no. 4, pp. 1303-1322, 2023
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