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Sökning: WFRF:(Hiltunen Sini)

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  • Cotlarciuc, Ioana, et al. (författare)
  • Towards the genetic basis of cerebral venous thrombosis-the BEAST Consortium: a study protocol.
  • 2016
  • Ingår i: BMJ open. - 2044-6055. ; 6:11
  • Tidskriftsartikel (refereegranskat)abstract
    • Cerebral venous thrombosis (CVT) is a rare cerebrovascular condition accounting for <1% of all stroke cases and mainly affects young adults. Its genetic aetiology is not clearly elucidated.To better understand the genetic basis of CVT, we have established an international biobank of CVT cases, Biorepository to Establish the Aetiology of Sinovenous Thrombosis (BEAST) which aims to recruit highly phenotyped cases initially of European descent and later from other populations. To date we have recruited 745 CVT cases from 12 research centres. As an initial step, the consortium plans to undertake a genome-wide association analysis of CVT using the Illumina Infinium HumanCoreExome BeadChip to assess the association and impact of common and low-frequency genetic variants on CVT risk by using a case-control study design. Replication will be performed to confirm putative findings. Furthermore, we aim to identify interactions of genetic variants with several environmental and comorbidity factors which will likely contribute to improve the understanding of the biological mechanisms underlying this complex disease.BEAST meets all ethical standards set by local institutional review boards for each of the participating sites. The research outcomes will be published in international peer-reviewed open-access journals with high impact and visibility. The results will be presented at national and international meetings to highlight the contributions into improving the understanding of the mechanisms underlying this uncommon but important disease. This international DNA repository will become an important resource for investigators in the field of haematological and vascular disorders.
  • Silvis, Suzanne M, et al. (författare)
  • Postpartum Period Is a Risk Factor for Cerebral Venous Thrombosis.
  • 2019
  • Ingår i: Stroke. - 1524-4628. ; 50:2, s. 501-503
  • Tidskriftsartikel (refereegranskat)abstract
    • Background and Purpose- Pregnancy and the postpartum period are generally considered to be risk factors for cerebral venous thrombosis (CVT), but no controlled studies have quantified the risk. Methods- Case-control study using data of consecutive adult patients with CVT from 5 academic hospitals and controls from the Dutch MEGA study (Multiple Environmental and Genetic Assessment of risk factors for venous thrombosis). Men, women over the age of 50, women using oral contraceptives or with a recent abortion or miscarriage were excluded. We adjusted for age and history of cancer, and stratified for pregnancy versus postpartum, and 0 to 6 versus 7 to 12 weeks postpartum. Results- In total 163/813 cases and 1230/6296 controls were included. Cases were younger (median 38 versus 41 years) and more often had a history of cancer (14% versus 4%) than controls. In total 41/163 (25%) cases and 82/1230 (7%) controls were pregnant or postpartum (adjusted odds ratio, 3.8; 95% CI, 2.4-6.0). The association was fully attributable to an increased risk of CVT during the postpartum period (adjusted odds ratio, 10.6; 95% CI, 5.6-20.0). We found no association between pregnancy and CVT (adjusted odds ratio, 1.2; 95% CI, 0.6-2.3). The risk was highest during the first 6 weeks postpartum (adjusted odds ratio, 18.7; 95% CI, 8.3-41.9). Conclusions- Women who have recently delivered are at increased risk of developing CVT, while there does not seem to be an increased risk of CVT during pregnancy.
  • Zuurbier, Susanna M, et al. (författare)
  • Cerebral Venous Thrombosis in Older Patients.
  • 2018
  • Ingår i: Stroke. - 1524-4628. ; 49:1, s. 197-200
  • Tidskriftsartikel (refereegranskat)abstract
    • Cerebral venous thrombosis (CVT) is rare in older patients. We investigated whether clinical features and outcomes differ in older and younger patients.We used data from a multicenter observational registry of consecutive adult patients with CVT admitted between 1987 and 2016. We compared demographics, clinical manifestations, and outcomes between older (upper quartile of the age distribution) and younger (lower 3 quartiles of the age distribution) patients.Data for 843 patients with CVT were available. The median age was 43 years (interquartile range, 30-55 years). Older patients (≥55 years; n=222) were less often women than younger patients (48% versus 71%; P<0.001) and less often reported headache (63% versus 87%; P<0.001). Cancer was more common in older patients (24% versus 9%; P<0.001), especially solid malignancies (19% versus 5%; P<0.001). Outcome at follow-up was worse in older patients (modified Rankin Scale, 3-6; adjusted odds ratio, 2.68; 95% confidence interval, 1.78-4.03; mortality, adjusted odds ratio, 2.13; 95% confidence interval, 1.09-4.19).The sex ratio of CVT is evenly distributed in older patients, probably because of the dissipation of hormonal influences. Malignancy should be considered as a potential precipitant in older patients with CVT.
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