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Observational Study
. 2014 Mar 22:14:55.
doi: 10.1186/1471-2377-14-55.

Observational Dutch Young Symptomatic StrokE studY (ODYSSEY): study rationale and protocol of a multicentre prospective cohort study

Renate M Arntz, Mayte E van Alebeek, Nathalie E Synhaeve, Paul J Brouwers, Gert W van Dijk, Rob A Gons, Tom den Heijer, Paul L M de Kort, Karlijn F de Laat, Anouk G van Norden, Sarah E Vermeer, Maureen J van der Vlugt, Roy P C Kessels, Ewoud J van Dijk, Frank-Erik de Leeuw  1
Affiliations
Observational Study

Observational Dutch Young Symptomatic StrokE studY (ODYSSEY): study rationale and protocol of a multicentre prospective cohort study

Renate M Arntz et al. BMC Neurol. .

Abstract

Background: The proportion of strokes occurring in younger adults has been rising over the past decade. Due to the far longer life expectancy in the young, stroke in this group has an even larger socio-economic impact. However, information on etiology and prognosis remains scarce.

Methods/design: ODYSSEY is a multicentre prospective cohort study on the prognosis and risk factors of patients with a first-ever TIA, ischemic stroke or intracerebral hemorrhage aged 18 to 49 years. Our aim is to include 1500 patients. Primary outcome will be all cause mortality and risk of recurrent vascular events. Secondary outcome will be the risk of post-stroke epilepsy and cognitive impairment. Patients will complete structured questionnaires on outcome measures and risk factors. Both well-documented and less well-documented risk factors and potentially acute trigger factors will be investigated. Patients will be followed every 6 months for at least 3 years. In addition, an extensive neuropsychological assessment will be administered both at baseline and 1 year after the stroke/TIA. Furthermore we will include 250 stroke-free controls, who will complete baseline assessment and one neuropsychological assessment.

Discussion: ODYSSEY is designed to prospectively determine prognosis after a young stroke and get more insight into etiology of patients with a TIA, ischemic stroke and intracerebral hemorrhage in patients aged 18 to 49 years old in a large sample size.

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Figures

Figure 1
Figure 1
Study design.
See this image and copyright information in PMC

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