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Träfflista för sökning "WFRF:(Redfors Petra) srt2:(2010-2014)"

Sökning: WFRF:(Redfors Petra) > (2010-2014)

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  • McArdle, P. F., et al. (författare)
  • Agreement between TOAST and CCS ischemic stroke classification: The NINDS SiGN Study
  • 2014
  • Ingår i: Neurology. - 0028-3878 .- 1526-632X. ; 83:18, s. 1653-60
  • Tidskriftsartikel (refereegranskat)abstract
    • OBJECTIVE: The objective of this study was to assess the level of agreement between stroke subtype classifications made using the Trial of Org 10172 Acute Stroke Treatment (TOAST) and Causative Classification of Stroke (CCS) systems. METHODS: Study subjects included 13,596 adult men and women accrued from 20 US and European genetic research centers participating in the National Institute of Neurological Disorders and Stroke (NINDS) Stroke Genetics Network (SiGN). All cases had independently classified TOAST and CCS stroke subtypes. Kappa statistics were calculated for the 5 major ischemic stroke subtypes common to both systems. RESULTS: The overall agreement between TOAST and CCS was moderate (agreement rate, 70%; κ = 0.59, 95% confidence interval [CI] 0.58-0.60). Agreement varied widely across study sites, ranging from 28% to 90%. Agreement on specific subtypes was highest for large-artery atherosclerosis (κ = 0.71, 95% CI 0.69-0.73) and lowest for small-artery occlusion (κ = 0.56, 95% CI 0.54-0.58). CONCLUSION: Agreement between TOAST and CCS diagnoses was moderate. Caution is warranted when comparing or combining results based on the 2 systems. Replication of study results, for example, genome-wide association studies, should utilize phenotypes determined by the same classification system, ideally applied in the same manner.
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  • Redfors, Petra, et al. (författare)
  • Stroke subtype predicts outcome in young and middle-aged stroke sufferers
  • 2012
  • Ingår i: Acta neurologica Scandinavica. - : Hindawi Limited. - 1600-0404 .- 0001-6314. ; 126:5
  • Tidskriftsartikel (refereegranskat)abstract
    • OBJECTIVES: There are few studies on long-term outcome after ischemic stroke (IS) for young and middle-aged stroke sufferers in relation to etiologic subtypes. Here, we report 2-year outcome in the Sahlgrenska Academy Study on Ischemic Stroke (SAHLSIS). MATERIALS AND METHODS: SAHLSIS comprises 600 patients with IS before the age of 70 years. Etiologic subtype of IS was classified according to Trial of Org 10172 in Acute Stroke Treatment (TOAST). Recurrent vascular events and death were registered using several overlapping methods. Functional outcome was assessed according to the modified Rankin Scale (mRS). RESULTS: After 2 years, 55 (9.2%) patients had suffered a recurrent stroke, 15 (2.5%) had a transient ischemic attack (TIA), 4 (0.7%) had a coronary event, and 24 (4.0%) had died. The number of recurrent stroke, TIA, and death differed significantly between etiologic stroke subtypes. The highest rates were observed in large-vessel disease (LVD), whereas small-vessel disease and cryptogenic stroke showed the lowest recurrence and mortality rates. LVD was a significant predictor of the composite outcome (recurrent stroke, TIA, coronary event and/or death) independently of cardiovascular risk factors and stroke severity. Stroke subtype also predicted functional outcome 2 years after index stroke, but this association was not retained after adjustment for stroke severity. CONCLUSIONS: In young and middle-aged stroke patients, stroke subtype predicts recurrent vascular events and/or death 2 years after index stroke independently of cardiovascular risk factors and stroke severity. Thus, it is important to take the etiologic subtype of IS in account when assessing the risk of recurrence both in the clinical setting and in future studies.
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5.
  • Redfors, Petra, et al. (författare)
  • The Barrow Neurological Institute Screen for Higher Cerebral Functions in Cognitive Screening after Stroke
  • 2014
  • Ingår i: Journal of Stroke & Cerebrovascular Diseases. - : Elsevier BV. - 1052-3057. ; 23:2, s. 349-355
  • Tidskriftsartikel (refereegranskat)abstract
    • The objective of this study was to evaluate the Barrow Neurological Institute Screen for Higher Cerebral Functions (BNIS) in screening for cognitive dysfunction at longterm follow-up after stroke in young and middle-aged patients. Within the Sahlgrenska Academy Study on Ischemic Stroke Outcome, the BNIS and the Mini-Mental State Examination (MMSE) were administered to 295 consecutive surviving patients seven years after ischemic stroke. All participants were less than 70 years at index stroke. BNIS score less than 47 and an MMSE score less than 29 were chosen to indicate cognitive dysfunction. Two hundred eighty-one (95%) patients completed both tests. The 2 test scores were moderately correlated, and both tests correlated to disability as measured by the modified Rankin Scale. The distribution of the MMSE score was skewed toward the top scores, with a marked ceiling effect, whereas the BNIS score was more normally distributed. Most BNIS subscales showed mean performance around the mid of the scale without ceiling effects. Both tests identified a large proportion of the subjects as cognitive impaired, however, with a substantially larger proportion for the BNIS (89%) compared with the MMSE (65%). We conclude that the BNIS may be a useful screening instrument for cognitive dysfunction after ischemic stroke and that a large proportion of young and middle-aged ischemic stroke survivors showed signs of cognitive dysfunction long after index stroke. Further validations of BNIS against formal neuropsychological testing and studies of the determinants and consequences of long-term cognitive outcome in this patient group are warranted.
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