Rates, risks and routes to reduce vascular dementia (R4vad), a UK-wide multicentre prospective observational cohort study of cognition after stroke: protocol

Wardlaw, J. M. et al. (2021) Rates, risks and routes to reduce vascular dementia (R4vad), a UK-wide multicentre prospective observational cohort study of cognition after stroke: protocol. European Stroke Journal, 6(1), pp. 89-101. (doi: 10.1177/2396987320953312) (PMID:33817339) (PMCID:PMC7995325)

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Background: Stroke commonly affects cognition and, by definition, much vascular dementia follows stroke. However, there are fundamental limitations in our understanding of vascular cognitive impairment, restricting understanding of prevalence, trajectories, mechanisms, prevention, treatment and patient-service needs. Aims: Rates, Risks and Routes to Reduce Vascular Dementia (R4VaD) is an observational cohort study of post-stroke cognition. We aim to recruit a wide range of patients with stroke, presenting to geographically diverse UK hospitals, into a longitudinal study to determine rates of, and risk factors for, cognitive and related impairments after stroke, to assess potential mechanisms and improve prediction models. Methods: We will recruit at least 2000 patients within six weeks of stroke with or without capacity to consent and collect baseline demographic, clinical, socioeconomic, lifestyle, cognitive, neuropsychiatric and informant data using streamlined patient-centred methods appropriate to the stage after stroke. We will obtain more detailed assessments at four to eight weeks after the baseline assessment and follow-up by phone and post yearly to at least two years. We will assess diagnostic neuroimaging in all and high-sensitivity inflammatory markers, genetics, blood pressure and diffusion tensor imaging in mechanistic sub-studies. Planned outputs: R4VaD will provide reliable data on long-term cognitive function after stroke, stratified by prior cognition, stroke- and patient-related variables and improved risk prediction. It will create a platform enabling sharing of data, imaging and samples. Participants will be consented for re-contact, facilitating future clinical trials and providing a resource for the stroke and dementia research communities.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Touyz, Professor Rhian and Quinn, Dr Terry
Authors: Wardlaw, J. M., Doubal, F., Brown, R., Backhouse, E., Woodhouse, L., Bath, P., Quinn, T. J., Robinson, T., Markus, H. S., McManus, R., O’Brien, J. T., Werring, D. J., Sprigg, N., Parry-Jones, A., Touyz, R. M., Williams, S., Mah, Y.-H., and Emsley, H.
College/School:College of Medical Veterinary and Life Sciences > Institute of Cardiovascular and Medical Sciences
Journal Name:European Stroke Journal
Publisher:SAGE Publications
ISSN (Online):2396-9881
Published Online:11 October 2020
Copyright Holders:Copyright © 2020 European Stroke Organisation
First Published:First published European Stroke Journal 6(1): 89-101
Publisher Policy:Reproduced under a Creative Commons License

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
190615Vascular Noxs as therapeutic targets and biomarkers in hypertensionRhian TouyzBritish Heart Foundation (BHF)CH/12/4/29762Institute of Cardiovascular & Medical Sciences