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Sökning: L773:0039 2499 OR L773:1524 4628

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51.
  • Fiskesund, Roland, et al. (författare)
  • Low levels of antibodies against phosphorylcholine predict development of stroke in a population-based study from northern Sweden
  • 2010
  • Ingår i: Stroke. - 0039-2499 .- 1524-4628. ; 41:4, s. 607-612
  • Tidskriftsartikel (refereegranskat)abstract
    • BACKGROUND AND PURPOSE: Natural immunoglobulin M antibodies specific for phosphorylcholine (anti-PC) have been implicated in atherosclerosis. We have shown previously that high levels of anti-PC predict a slower progression of atherosclerosis in humans and that low levels of anti-PC are associated with higher risk for cardiovascular disease. Here we determine the association between anti-PC and the incidence of stroke. METHODS: Using a nested case control study design, we examined 227 incident cases (125 men and 102 women) of first-time stroke and 455 age- and sex-matched controls identified during a 13-year time period (1985 to 1999) within the population-based cohorts of the Västerbotten Intervention Project (VIP) and the World Health Organization Monitoring Trends and Determinants in Cardiovascular Disease (WHO MONICA) project in Northern Sweden. Odds ratios of stroke with 95% CIs with adjustments for age, gender, smoking, serum cholesterol, diabetes, body mass index, and blood pressure were determined. Anti-PC levels were measured using ELISA. RESULTS: A significant association between low levels of anti-PC at baseline and incident stroke was seen for the whole group of anti-PC levels below the 30th percentile (multivariately adjusted odds ratio, 1.62; CI, 1.11 to 2.35). Analyses of gender-specific associations indicated fairly strong associations for females, especially at the lowest 30th percentile (multivariately adjusted odds ratio, 2.65; CI, 1.41 to 4.95). No associations were noted for men. CONCLUSION: Low anti-PC is a novel independent risk marker for development of stroke. Measurements of anti-PC could be used to identify immunodeficient subjects at an increased risk for stroke. The possibility that such subjects might be targets for novel modes of treatment such as immunotherapies deserves further investigation.
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52.
  • Forslund, Tomas, et al. (författare)
  • Improved Stroke Prevention in Atrial Fibrillation After the Introduction of Non-Vitamin K Antagonist Oral Anticoagulants
  • 2018
  • Ingår i: Stroke. - : Lippincott Williams & Wilkins. - 0039-2499 .- 1524-4628. ; 49:9, s. 2122-2128
  • Tidskriftsartikel (refereegranskat)abstract
    • Background and Purpose: The purpose of this study was to investigate the impact of improved antithrombotic treatment in atrial fibrillation after the introduction of non-vitamin K antagonist oral anticoagulants on the incidence of stroke and bleeding in a real-life total population, including both primary and secondary care.Methods: All resident and alive patients with a recorded diagnosis for atrial fibrillation during the preceding 5 years in the Stockholm County Healthcare database (Vårdanalysdatabasen) were followed for clinical outcomes during 2012 (n=41 008) and 2017 (n=49 510).Results: Pharmacy claims for oral anticoagulants increased from 51.6% to 73.8% (78.7% among those with CHA2DS2-VASc ≥2). Non-vitamin K antagonist oral anticoagulant claims increased from 0.4% to 34.4%. Ischemic stroke incidence rates decreased from 2.01 per 100 person-years in 2012 to 1.17 in 2017 (incidence rate ratio, 0.58; 95% CI, 0.52-0.65). The largest increases in oral anticoagulants use and decreases in ischemic strokes were seen in patients aged ≥80 years who had the highest risk of stroke and bleeding. The incidence rates for major bleeding (2.59) remained unchanged (incidence rate ratio, 1.00; 95% CI, 0.92-1.09) even in those with a high bleeding risk. Poisson regression showed that 10% of the absolute ischemic stroke reduction was associated with increased oral anticoagulants treatment, whereas 27% was related to a generally decreased risk for all stroke.Conclusions: Increased oral anticoagulants use contributed to a marked reduction of ischemic strokes without increasing bleeding rates between 2012 and 2017. The largest stroke reduction was seen in elderly patients with the highest risks for stroke and bleeding. These findings strongly support the adoption of current guideline recommendations for stroke prevention in atrial fibrillation in both primary and secondary care.
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53.
  • Fragata, Isabel, et al. (författare)
  • Early Prediction of Delayed Ischemia and Functional Outcome in Acute Subarachnoid Hemorrhage : Role of Diffusion Tensor Imaging
  • 2017
  • Ingår i: Stroke. - 0039-2499 .- 1524-4628. ; 48:8, s. 2091-2097
  • Tidskriftsartikel (refereegranskat)abstract
    • Background and Purpose-Diffusion tensor imaging (DTI) parameters are markers of cerebral lesion in some diseases. In patients with acute subarachnoid hemorrhage (SAH), we investigated whether DTI parameters measured at < 72 hours might be associated with delayed cerebral ischemia (DCI) and with poor functional outcome at 3 months (modified Rankin Scale score =3).Methods-DTI was performed in a prospective cohort of 60 patients with nontraumatic SAH at < 72 hours. Association of fractional anisotropy and apparent diffusion coefficient values at < 72 hours with the occurrence of DCI and outcome at 3 months was evaluated with logistic regression models, adjusting for known predictors of prognosis.Results-At < 72 hours after SAH, fractional anisotropy values at the cerebellum were associated with DCI occurrence (78% less odds of DCI for each 0.1 increase in fractional anisotropy; P=0.019). Early apparent diffusion coefficient values were not associated with DCI. After adjusting for confounding variables, an increase of 10 U in apparent diffusion coefficient at the frontal centrum semiovale corresponded to 15% increased odds of poor outcome (P=0.061).Conclusions-DTI parameters at < 72 hours post-SAH are independently associated with the occurrence of DCI and functional outcome. These preliminary results suggest the role of DTI parameters as surrogate markers of prognosis in nontraumatic SAH.
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54.
  • Fransson, Eleonor I, et al. (författare)
  • Job strain and the risk of stroke : an individual-participant data meta-analysis
  • 2015
  • Ingår i: Stroke. - 0039-2499 .- 1524-4628. ; 46:2, s. 557-559
  • Tidskriftsartikel (refereegranskat)abstract
    • BACKGROUND AND PURPOSE: Psychosocial stress at work has been proposed to be a risk factor for cardiovascular disease. However, its role as a risk factor for stroke is uncertain.METHODS: We conducted an individual-participant-data meta-analysis of 196 380 males and females from 14 European cohort studies to investigate the association between job strain, a measure of work-related stress, and incident stroke.RESULTS: In 1.8 million person-years at risk (mean follow-up 9.2 years), 2023 first-time stroke events were recorded. The age- and sex-adjusted hazard ratio for job strain relative to no job strain was 1.24 (95% confidence interval, 1.05;1.47) for ischemic stroke, 1.01 (95% confidence interval, 0.75;1.36) for hemorrhagic stroke, and 1.09 (95% confidence interval, 0.94;1.26) for overall stroke. The association with ischemic stroke was robust to further adjustment for socioeconomic status.CONCLUSION: Job strain may be associated with an increased risk of ischemic stroke, but further research is needed to determine whether interventions targeting job strain would reduce stroke risk beyond existing preventive strategies.
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55.
  • Friberg, Leif, et al. (författare)
  • High prevalence of atrial fibrillation among patients with ischemic stroke
  • 2014
  • Ingår i: Stroke. - 0039-2499 .- 1524-4628. ; 45:9, s. 2599-
  • Tidskriftsartikel (refereegranskat)abstract
    • Background and Purpose-Atrial fibrillation (AF) is a common cause of devastating but potentially preventable stroke. Estimates of the prevalence of AF among patients with stroke vary considerably because of difficulties in detection of intermittent, silent AF. Better recognition of AF in this patient group may help to identify and offer protection to individuals at risk. Our aim was to determine the nationwide prevalence of AF among patients with ischemic stroke, as well as their use of oral anticoagulation. Methods-Cross-sectional study of unselected patients in cross-linked nationwide Swedish health registers. All 94 083 patients with a diagnosis of ischemic stroke in the nationwide stroke register Riks-Stroke between 2005 and 2010 were studied. Information about previously diagnosed AF, and comorbidity, was obtained from the nationwide Patient Register and cross-referenced with the national Drug Register containing data on all dispensed pharmacological prescriptions in Sweden. Results-Combination of data from Riks-Stroke and from the Patient Register showed that 31 428 (33.4%) patients with ischemic stroke had previously known, or newly diagnosed, AF. Of those, only 16.2% had received warfarin in a pharmacy within 6 months before stroke onset. After hospital discharge, only 35.0% of the survivors received warfarin within the first 3 months after discharge. The likelihood for underlying AF was strongly correlated to the CHA(2)DS(2)-VASC score, which is a point based scheme for assessment of stroke risk in AF but which also predicts likelihood of AF. In this scheme points are given for age, previous stroke or transient ischemic attack, hypertension, heart failure, diabetes, vascular disease and female sex. Conclusions-Access to nationwide register data shows that AF is more common among patients with ischemic stroke than those previously reported. Few patients with stroke and AF had anticoagulant treatment before the event, and few got it after the event. CHA(2)DS(2)-VASc could be a useful monitoring tool to intensify efforts to diagnose AF among patients with cryptogenic stroke.
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56.
  • Giang, Kok Wai, 1984, et al. (författare)
  • Long-Term Risk of Hemorrhagic Stroke in Young Patients With Congenital Heart Disease
  • 2018
  • Ingår i: Stroke. - : Ovid Technologies (Wolters Kluwer Health). - 0039-2499 .- 1524-4628. ; 49:5, s. 1155-1162
  • Tidskriftsartikel (refereegranskat)abstract
    • Background and Purpose-The risk of ischemic stroke is increased in patients with congenital heart disease (CHD); however, data on the risk of hemorrhagic stroke, including intracerebral hemorrhage (ICH) and subarachnoid hemorrhage (SAH), are lacking. Methods-The Swedish Patient Register was used to identify all patients who were born with a diagnosis of CHD between 1970 and 1993. Each patient was compared with 10 randomly selected controls from the general population, matched for age, sex, and county. Follow-up data were collected until December 2011 for both cases and controls. Results-Of 21 982 patients with CHD, 70 developed ICH and 57 developed SAH up to the age of 42 years. CHD patients had more than an 8x higher risk (incidence rate ratio, 8.23; 95% confidence interval, 6-11.2) of developing ICH and almost an 8x higher risk of developing SAH (incidence rate ratio, 7.64; 95% confidence interval, 5.41-10.7) compared with controls. The absolute risk of ICH and SAH was low, with incidence rates of 1.18 and 0.96 cases per 10 000 person-years, respectively. Patients with severe nonconotruncal defects (incidence rate ratio, 16.5; 95% confidence interval, 5.63-51.2) or coarctation of the aorta (incidence rate ratio, 17.3; 95% confidence interval, 6.63-51.8) had the highest relative risk of developing hemorrhagic stroke, with incidence rates of 3.22 and 2.79 cases per 10 000 person-years, respectively. Conclusions-The relative risk of hemorrhagic stroke among children and young adults with CHD was almost 8x higher than that of matched controls from the general population, although the absolute risk was low. The highest risk of ICH and SAH occurred in patients with severe nonconotruncal defects and coarctation of the aorta.
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57.
  • Gill, D., et al. (författare)
  • Genetically Determined Risk of Depression and Functional Outcome After Ischemic Stroke: Mendelian Randomization Study
  • 2019
  • Ingår i: Stroke. - : Ovid Technologies (Wolters Kluwer Health). - 0039-2499 .- 1524-4628. ; 50:8, s. 2219-2222
  • Tidskriftsartikel (refereegranskat)abstract
    • Background and Purpose- Psychosocial factors can have implications for ischemic stroke risk and recovery. This study investigated the effect of genetically determined risk of depression on these outcomes using the Mendelian randomization (MR) framework. Methods- Genetic instruments for risk of depression were identified in a discovery genome-wide association study of 246363 cases and 561190 controls and further replicated in a separate population of 474574 cases and 1032579 controls. Corresponding genetic association estimates for risk of ischemic stroke were taken from 60341 cases and 454450 controls, with those for functional outcome 3 months after ischemic stroke taken from an analysis of 6021 patients. Following statistical power calculation, inverse-variance weighted MR was performed to pool estimates across different instruments. The Cochran Q heterogeneity test, weighted median MR, and MR pleiotropy residual sum and outlier were used to explore possible bias relating to inclusion of pleiotropic variants. Results- There was no MR evidence for an effect of genetically determined risk of depression on ischemic stroke risk. Although suffering low statistical power, the main inverse-variance weighted MR analysis was suggestive of a detrimental effect of genetically determined risk of depression on functional outcome after ischemic stroke (odds ratio of poor outcome [modified Rankin Scale, >= 3] per 1-SD increase in genetically determined risk of depression, 1.81; 95% CI, 0.98-3.35; P=0.06). There was no evidence of heterogeneity between MR estimates produced by different instruments (Q P=0.26). Comparable MR estimates were obtained with weighted median MR (odds ratio, 2.57; 95% CI, 1.05-6.25; P=0.04) and MR pleiotropy residual sum and outlier (odds ratio, 1.81; 95% CI, 0.95-3.46; P=0.08). Conclusions- We found no MR evidence of genetically determined risk of depression affecting ischemic stroke risk but did find consistent MR evidence suggestive of a possible effect on functional outcome after ischemic stroke. Given the widespread prevalence of depression-related morbidity, these findings could have implications for prognostication and personalized rehabilitation after stroke.
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58.
  • Glader, Eva-Lotta, 1972-, et al. (författare)
  • Differences in Long-Term Outcome Between Patients Treated in Stroke Units and in General Wards : A 2-Year Follow-Up of Stroke Patients in Sweden
  • 2001
  • Ingår i: Stroke. - : American Heart Association, Inc.. - 0039-2499 .- 1524-4628. ; 32, s. 2124-2130
  • Tidskriftsartikel (refereegranskat)abstract
    • Background and Purpose— The long-term beneficial effects of stroke unit care have been proved in several randomized trials. However, there is a question of large-scale applicability in routine clinical practice of interventions used by dedicated investigators in small randomized trials. The objective of this study was to compare, 21/2 years after stroke, patients who had been treated in stroke units and those treated in general wards in routine clinical practice.Methods— This is a prospective cohort study based on 8194 patients who were included, during the first 6 months in 1997, in Riks-Stroke, the Swedish National Register for quality assessment of acute stroke. Two years after the event, 5189 patients were still alive and 5104 were followed up with a postal questionnaire to which 4038 responded.Results— Among the group of patients who were independent in activities of daily living (ADL) functions before the stroke, patients who were treated in stroke units were less often dependent in ADL functions, after adjustment for case mix (OR, 0.79; CI, 0.66 to 0.94). If they also lived at home before the stroke, then they had a lower case-fatality rate 2 years after the stroke (OR, 0.81; CI, 0.72 to 0.92).Conclusions— Long-term beneficial effects of treatment in stroke units were shown for patients who were independent in ADL functions before the stroke. No benefits were shown for patients who were dependent on help for primary ADL before the stroke. Further studies on this group of patients with more detailed outcome measures are needed.
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59.
  • Glader, Eva-Lotta, et al. (författare)
  • Persistent use of secondary preventive drugs declines rapidly during the first 2 years after stroke.
  • 2010
  • Ingår i: Stroke. - : American Heart Association. - 0039-2499 .- 1524-4628. ; 41:2, s. 397-401
  • Tidskriftsartikel (refereegranskat)abstract
    • BACKGROUND AND PURPOSE: To prevent new cardiovascular events after stroke, prescribed preventive drugs should be used continuously. This study measures persistent use of preventive drugs after stroke and identifies factors associated with persistence.METHODS: A 1-year cohort (21,077 survivors) from Riks-Stroke, the Swedish Stroke Register, was linked to the Swedish Prescribed Drug Register.RESULTS: The proportion of patients who were persistent users of drugs prescribed at discharge from hospital declined progressively over the first 2 years to reach 74.2% for antihypertensive drugs, 56.1% for statins, 63.7% for antiplatelet drugs, and 45.0% for warfarin. For most drugs, advanced age, comorbidity, good self-perceived health, absence of low mood, acute treatment in a stroke unit, and institutional living at follow-up were independently associated with persistent medication use.CONCLUSIONS: Persistent secondary prevention treatment declines rapidly during the first 2 years after stroke, particularly for statins and warfarin. Effective interventions to improve persistent secondary prevention after stroke need to be developed.
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60.
  • Glader, Eva-Lotta, 1972-, et al. (författare)
  • Poststroke Fatigue : A 2-Year Follow-Up Study of Stroke Patients in Sweden
  • 2002
  • Ingår i: Stroke. - : American Heart Association, Inc.. - 0039-2499 .- 1524-4628. ; 33, s. 1327-1333
  • Tidskriftsartikel (refereegranskat)abstract
    • Background and Purpose— Fatigue is common among stroke patients. This study determined the prevalence of fatigue among long-term survivors after stroke and what impact fatigue had on various aspects of daily life and on survival.Methods— This study was based on Riks-Stroke, a hospital-based national register for quality assessment of acute stroke events in Sweden. During the first 6 months of 1997, 8194 patients were registered in Riks-Stroke, and 5189 were still alive 2 years after the stroke. They were followed up by a mail questionnaire, to which 4023 (79%) responded. Patients who reported that they always felt depressed were excluded.Results— To the question, “Do you feel tired?” 366 (10.0%) of the patients answered that they always felt tired, and an additional 1070 (29.2%) were often tired. Patients who always felt tired were on average older than the rest of the study population (74.5 versus 71.5 years, P<0.001); therefore, all subsequent analyses were age adjusted. Fatigue was an independent predictor for having to move into an institutional setting after stroke. Fatigue was also an independent predictor for being dependent in primary activities of daily living functions. Three years after stroke, patients with fatigue also had a higher case fatality rate.Conclusions— Fatigue is frequent and often severe, even late after stroke. It is associated with profound deterioration of several aspects of everyday life and with higher case fatality, but it usually receives little attention by healthcare professionals. Intervention studies are needed.
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