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  • 11
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    Online Resource
    White matter hyperintensity load on stroke recurrence and mortality at 1 year after ischemic stroke
    Ovid Technologies (Wolters Kluwer Health) ; 2019
    In:  Neurology Vol. 93, No. 6 ( 2019-08-06)
    Details
    In: Neurology, Ovid Technologies (Wolters Kluwer Health), Vol. 93, No. 6 ( 2019-08-06)
    Type of Medium: Online Resource
    ISSN: 0028-3878 , 1526-632X
    URL: Article
    DOI: 10.1212/WNL.0000000000007896
    RVK:
    XA 10000
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2019
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  • 12
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    Abstract WMP61: Drip-and-Ship versus Front-Door Strategy of Preceding Intravenous Thrombolysis in Patients Receiving Endovascular Therapy; An Analysis From the Clinical Research Center for Stroke-5th division Registry in Korea
    Ovid Technologies (Wolters Kluwer Health) ; 2016
    In:  Stroke Vol. 47, No. suppl_1 ( 2016-02)
    Details
    In: Stroke, Ovid Technologies (Wolters Kluwer Health), Vol. 47, No. suppl_1 ( 2016-02)
    Abstract: Background: The widespread use of drip-and-ship strategy in acute ischemic stroke (AIS) is confined by the safety concerns during transfer. However, recent development of endovascular therapy (EVT) might add the advantage of higher recanalization rate to this strategy. We evaluated the effectiveness and safety of drip-and-ship versus conventional (front-door) strategy of preceding intravenous thrombolysis (IVT) in large artery occlusion stroke patients receiving EVT. Method: From a prospective multicenter stroke registry (CRCS-5) database, we identified AIS patients treated with IVT and EVT within 8 h of onset and admitted to the 14 participating centers between 2008 and 2013. Safety outcomes were symptomatic intracranial hemorrhage (sICH), and 3-month mortality. Effectiveness outcome was a 3-month modified Rankin Scale (mRS) score. We performed multivariable logistic regression analysis using generalized estimating equation to estimate adjusted odds ratio (OR) and 95% confidence interval (CI) of the drip-and-ship versus the front-door. Results: Of 16929 AIS patients registered during 64 months, 480 were treated with IVT and EVT within 8 h, and 61 (13%) were categorized into drip-and-ship group. Mean onset to IVT and IVT to EVT times were 117±51 and 187±69 minutes in drip-and-ship strategy and 127±59 and 75±38 minutes in front-door strategy, respectively. Forty-eight drip-and-ship cases were matched to 146 front-door cases by age and initial NIH stroke scale (NIHSS). Compared to the front-door cases, the drip-and-ship cases were more likely to be a habitual smoker, and treated with standard dose alteplase. sICH developed in 5.5% of the front-door strategy and 10.4% of the drip-and-ship strategy (p=0.146). After adjustment for age, initial NIHSS, pre-stroke mRS score, and variables with p 〈 0.1 from bivariate analysis, the ORs (95% CIs) of the drip-and-ship strategy were 2.48 (0.73 - 8.44) for sICH, 0.95 (0.50 - 1.81) for shift to lower score of 3-month mRS, and 1.15 (0.37 - 3.62) for 3-month mortality. Conclusion: The drip-and-ship strategy did not improve functional recovery at 3 months, and the safety issues might still exist in patients receiving EVT. However, there is a possible underestimation of initial stroke severity in drip and ship patients.
    Type of Medium: Online Resource
    ISSN: 0039-2499 , 1524-4628
    URL: Article
    DOI: 10.1161/str.47.suppl_1.wmp61
    RVK:
    XA 10000
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2016
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  • 13
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    Different Antiplatelet Strategies in Patients With New Ischemic Stroke While Taking Aspirin
    Ovid Technologies (Wolters Kluwer Health) ; 2016
    In:  Stroke Vol. 47, No. 1 ( 2016-01), p. 128-134
    Details
    In: Stroke, Ovid Technologies (Wolters Kluwer Health), Vol. 47, No. 1 ( 2016-01), p. 128-134
    Abstract: Selecting among different antiplatelet strategies when patients experience a new ischemic stroke while taking aspirin is a common clinical challenge, currently addressed by a paucity of data. Methods— This study is an analysis of a prospective multicenter stroke registry database from 14 hospitals in South Korea. Patients with acute noncardioembolic stroke, who were taking aspirin for prevention of ischemic events at the time of onset of stroke, were enrolled. Study subjects were divided into 3 groups according to the subsequent antiplatelet therapy strategy pursued; maintaining aspirin monotherapy (MA group), switching aspirin to nonaspirin antiplatelet agents (SA group), and adding another antiplatelet agent to aspirin (AA group). The primary study end point was the composite of stroke (ischemic and hemorrhagic), myocardial infarction, and vascular death up to 1 year after stroke onset. Results— A total of 1172 patients were analyzed for this study. Antiplatelet strategies pursued in study patients were MA group in 212 (18.1%), SA group in 246 (21.0%), and AA group in 714 (60.9%). The Cox proportional hazards regression analysis showed that, compared with the MA group, there was a reduction in the composite vascular event primary end point in the SA group (hazard ratio, 0.50; 95% confidence interval, 0.27–0.92; P =0.03) and in the AA group (hazard ratio, 0.40; 95% confidence interval, 0.24–0.66; P 〈 0.001). Conclusions— This study showed that, compared with maintaining aspirin, switching to or adding alternative antiplatelet agents may be better in preventing subsequent vascular events in patients who experienced a new ischemic stroke while taking aspirin.
    Type of Medium: Online Resource
    ISSN: 0039-2499 , 1524-4628
    URL: Article
    DOI: 10.1161/STROKEAHA.115.011595
    RVK:
    XA 10000
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2016
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  • 14
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    Clinical Outcomes of Posterior Versus Anterior Circulation Infarction With Low National Institutes of Health Stroke Scale Scores
    Ovid Technologies (Wolters Kluwer Health) ; 2017
    In:  Stroke Vol. 48, No. 1 ( 2017-01), p. 55-62
    Details
    In: Stroke, Ovid Technologies (Wolters Kluwer Health), Vol. 48, No. 1 ( 2017-01), p. 55-62
    Abstract: We compared baseline characteristics and outcomes at 3 months between patients with minor anterior circulation infarction (ACI) versus minor posterior circulation infarction (PCI), including the influence of large vessel disease on outcomes. Methods— This study is an analysis of a prospective multicenter registry database in South Korea. Eligibility criteria were patients with ischemic stroke admitted within 7 days of stroke onset, lesions in either anterior or posterior circulation, and National Institutes of Health Stroke Scale score of ≤4 at baseline. Patients were divided into 4 groups for further analysis: minor ACI with and without internal carotid artery/middle cerebral artery large vessel disease and minor PCI with and without vertebrobasilar large vessel disease. Results— A total of 7178 patients (65.2±12.6 years) were analyzed in this study, and 2233 patients (31.1%) had disability (modified Rankin Scale score 2–6) at 3 months. Disability was 32.3% in minor PCI and 30.3% in minor ACI ( P =0.07), and death was 1.3% and 1.5%, respectively ( P =0.82). In a multivariable logistic regression analysis, minor PCI was significantly associated with disability at 3 months when compared with minor ACI (odds ratio, 1.23; 95% confidence interval, 1.09–1.37; P 〈 0.001). In pairwise comparisons, minor PCI with vertebrobasilar large vessel disease was independently associated with disability at 3 months, compared with the other 3 groups. Conclusions— Our study showed that minor PCI exhibited more frequent disability at 3 months than minor ACI. Especially, the presence of vertebrobasilar large vessel disease in minor PCI had a substantially higher risk of disability. Our results suggest that minor PCI with vertebrobasilar large vessel disease could require more meticulous care and are important targets for further study.
    Type of Medium: Online Resource
    ISSN: 0039-2499 , 1524-4628
    URL: Article
    DOI: 10.1161/STROKEAHA.116.013432
    RVK:
    XA 10000
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2017
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  • 15
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    Abstract 71: The Impact of 3-month Functional Outcome on Healthcare Expenditure During the 5 Years After Acute Ischemic Stroke
    Ovid Technologies (Wolters Kluwer Health) ; 2019
    In:  Stroke Vol. 50, No. Suppl_1 ( 2019-02)
    Details
    In: Stroke, Ovid Technologies (Wolters Kluwer Health), Vol. 50, No. Suppl_1 ( 2019-02)
    Abstract: Background and Purpose: Stroke is one of the most devastating and costly health problems of today. However, there is lack of knowledge about how costly it is in a long-term perspective and how much the long-term cost differs according to 3-month functional outcome, a major primary outcome variable of acute stroke intervention trials. Methods: Acute ischemic stroke patients who were registered into the multi-center stroke registry (Clinical Research Collaboration for Stroke in Korea, CRCS-K) in South Korea between 2011 and 2013 were matched to the National Health Insurance Service claim database. All the healthcare expenditure was extracted from the claim database and converted into daily cost of each individual. Yearly expenditures and cumulative expenditure up to 5 yeas were obtained and expressed in US dollars and were compared according to 3-month functional outcome (modified Rankin disability scale, mRS).Results: A total of 11,136 acute ischemic stroke patients (mean age, 68 years; men 58%) were analyzed. The median follow-up period was 1,418 days. The mean cumulative healthcare expenditure over 5 years was $74,295 (SD, $91,049) and showed a dramatic increment during the first month followed by a constant increase without a considerable change. The mean 5-year cumulative expenditure differed significantly according to 3-month functional outcome; $32,261 in those with 3-month mRS 0 and $163,244 in those with 3-month mRS 5. After adjusting for the selected potential confounders, the yearly expenditures and the cumulative one at each time point differed significantly according to 3-month mRS scores. Figure given below is showing the median 5-year cumulative daily expenditure by 3-month mRS. Conclusions: This study shows that the impact of 3-month functional outcome on the long-term healthcare expenditure following acute ischemic stroke may be more than expected. The efforts for improving functional outcomes are urgent.
    Type of Medium: Online Resource
    ISSN: 0039-2499 , 1524-4628
    URL: Article
    DOI: 10.1161/str.50.suppl_1.71
    RVK:
    XA 10000
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2019
    detail.hit.zdb_id: 1467823-8
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  • 16
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    Moderate alcohol intake reduces risk of ischemic stroke in Korea
    Ovid Technologies (Wolters Kluwer Health) ; 2015
    In:  Neurology Vol. 85, No. 22 ( 2015-12-01), p. 1950-1956
    Details
    In: Neurology, Ovid Technologies (Wolters Kluwer Health), Vol. 85, No. 22 ( 2015-12-01), p. 1950-1956
    Type of Medium: Online Resource
    ISSN: 0028-3878 , 1526-632X
    URL: Article
    DOI: 10.1212/WNL.0000000000002165
    RVK:
    XA 10000
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2015
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  • 17
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    Abstract TP184: Impact on Ischemic Stroke Subtypes of Fasting and Non-fasting Triglycerides
    Ovid Technologies (Wolters Kluwer Health) ; 2017
    In:  Stroke Vol. 48, No. suppl_1 ( 2017-02)
    Details
    In: Stroke, Ovid Technologies (Wolters Kluwer Health), Vol. 48, No. suppl_1 ( 2017-02)
    Abstract: Introduction: Remnant cholesterol, comprising triglycerides(TG)-rich lipoproteins, accumulates in intimal foam cells and causes atherosclerosis. Fasting TG is reported to be associated with atherosclerotic stroke, but relationships between non-fasting TG (NFTG) and ischemic stroke subtypes are unknown. Recently NFTG was found to produce endothelial dysfunction. This study aimed to elucidate the association of fasting and NFTG with ischemic stroke subtypes, especially large-artery atherosclerosis (LAA) and small vessel occlusion (SVO). Methods: Using a prospective multicenter stroke registry (Clinical Research Center for Stroke - 5th division), we identified acute ischemic stroke patients, hospitalized within 48 hours of onset, and whose fasting and non-fasting TG values were available. We measured lipid profiles in each individual twice; at presentation and after overnight fasting. Initial TG were regarded as NFTG when measured within 8 hours from last mealtime. Results: Total 3,170 patients were analyzed. Stroke subtypes were categorized as LAA (37.9%), SVO (18.7%) and non-LAA and non-SVO (43.4%). Lipid levels according stroke subtypes are presented in Table. Lipid levels were divided by quartiles and the highest quartile was compared to others. In multinomial analyses compared to non-LAA and non-SVO group, fasting TG was associated with LAA (adjusted ORs 1.33 [95% CIs 1.09 - 1.62]) and SVO (1.61 [1.27 - 2.04] ). NFTG was associated not with LAA (1.05 [0.87 - 1.28]), but with SVO (1.36 [1.08 - 1.71] ). With respect to other lipid levels, fasting and non-fasting LDL were associated with both LAA (1.57 [1.29 - 1.90], fasting; 1.89 [1.56 - 2.29] , non-fasting) and SVO (1.40 [1.11 - 1.77], fasting; 1.74 [1.38 - 2.19] , non-fasting). Conclusions: This study may be the first one to demonstrate an association between non-fasting TG and SVO. It should be explored further on mechanisms of differential effect of fasting and non-fasting TG on ischemic stroke subtypes.
    Type of Medium: Online Resource
    ISSN: 0039-2499 , 1524-4628
    URL: Article
    DOI: 10.1161/str.48.suppl_1.tp184
    RVK:
    XA 10000
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2017
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  • 18
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    Abstract TP304: Use, Time Delay and Outcomes of the Drip-and-Ship Thrombolysis Paradigm for Patients With Acute Ischemic Stroke
    Ovid Technologies (Wolters Kluwer Health) ; 2016
    In:  Stroke Vol. 47, No. suppl_1 ( 2016-02)
    Details
    In: Stroke, Ovid Technologies (Wolters Kluwer Health), Vol. 47, No. suppl_1 ( 2016-02)
    Abstract: Introduction: The utilization of drip-and-ship thrombolysis paradigm, clinical characteristics and outcomes of patients treated with the paradigm could vary with regional stroke care system. Hypothesis: We hypothesized that clinical characteristics and functional outcomes of patients treated with drip-and-ship paradigm would be different from those of patients treated via direct visit. Methods: From a multicenter stroke registry, we identified acute ischemic stroke patients treated with tPA who arrived hospital within 6 hours from the symptom onset. Functional outcomes at three months after the stroke were classified as favorable (modified Rankin Scale score [mRS] 0 to 1) or unfavorable (mRS 2-6). Using multivariable analysis, we compared the modified Rankin scale (mRS) score at 3 months and symptomatic intracranial hemorrhages (SICH) between patients treated with drip-and-ship paradigm and those treated via direct visit. Results: Among 1,843 patients who met the eligible criteria, 244 patients (13.2%; 95% CI, 11.7-14.9) were treated using drip-and-ship paradigm. Patients treated with drip-and-ship paradigm had shorter onset to needle time compared with patients treated via direct visit (median[IQR], 110 minutes[79-150] vs 126 minutes[90-173], p 〈 0.001). After multivariable analysis, patients treated with drip-and-ship paradigm had significantly greater risk of unfavorable functional outcome (mRS 2-6) at 3 months after the stroke compared with patients treated via direct visit (OR 2.15; 95% CI, 1.50-3.08; p 〈 0.001). SICH also occurred more frequently in patients treated with drip-and-ship paradigm (OR 1.78; 95% CI, 1.02-3.12; p =0.04). Of 1,843 patients, 509 patients (27.6%, 71 patients with drip-and-ship paradigm and 438 patients via direct visit) received subsequent endovascular recanalization therapy. The use of drip-and-ship paradigm caused approximately 105 minute delay in onset to groin puncture time compared with those treated via direct visit (305 minutes[260-345] vs 200 minutes[155-245] , p 〈 0.001). Conclusions: Drip-and-ship thrombolysis paradigm was used in less than 15% of patients treated with tPA, and use of the paradigm caused a significant delay in onset to groin puncture time for endovascular therapy.
    Type of Medium: Online Resource
    ISSN: 0039-2499 , 1524-4628
    URL: Article
    DOI: 10.1161/str.47.suppl_1.tp304
    RVK:
    XA 10000
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2016
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  • 19
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    Abstract 184: Clinical Outcomes According to Previous Intracranial Hemorrhage in Patients Receiving Intravenous Thrombolysis
    Ovid Technologies (Wolters Kluwer Health) ; 2015
    In:  Stroke Vol. 46, No. suppl_1 ( 2015-02)
    Details
    In: Stroke, Ovid Technologies (Wolters Kluwer Health), Vol. 46, No. suppl_1 ( 2015-02)
    Abstract: Objective: This study aimed to describe clinical outcomes in patients treated with intravenous (IV) tPA according to evidence of previous Intracranial hemorrhage (ICH) and investigate the associations between previous ICH and clinical outcomes. Methods: Using a prospective multicenter stroke registry database, we identified acute ischemic stroke patients who were hospitalized to the 14 participating centers between January 2011 and July 2013 and were treated with IV tPA within 4.5 h of onset. Presence of previous ICH was screened using the formal radiologic reports or the clinical history of ICH from the registry database. If suspected, previous ICH was confirmed through direct review of brain MRI. As clinical outcomes, modified Rankin scale (mRS) 0-1 at discharge, mortality during hospitalization and symptomatic hemorrhagic transformation (sHT) were collected. sHT was defined according to the definition of SITS-MOST trial. Results: Among 1495 patients who were treated with IV tPA, 70 (4.7%) had evidence of previous ICH. sHT developed in 69 (4.6%) of all subjects; 7.1% (n=5) of 70 patients with previous ICH and 4.5% (n=64) of 1425 without previous ICH (p=0.25 on Fisher’s exact test). Hospital Mortality and mRS 0-1 at discharge was observed in 5.6% and 26.6% of all subjects and in 8.6% and 22.9% of those with previous ICH and 5.4% and 26.7% in those without it (p=0.28 on Fisher’s exact test and p=0.47 on Pearson’s chi-squared test, respectively). Multivariable logistic regression analysis with adjustment for age, initial National Institute of Health Stroke Scale, initial glucose and tPA dose showed that previous ICH was not associated with sHT, mortality during hospitalization and having discharge mRS 0-1 (p’s 〉 0.4). Review of MRI on 5 patients who had previous ICH and developed sHT after IV tPA demonstrated that, in 4 cases, location of sHT was different from where previous ICH had developed, but in 1 case sHT occurred exactly where previous ICH had developed. Conclusions: This study shows that previous ICH may not increase the risk of sHT and death and aggravate functional outcome at discharge. However, it should be noted that the retrospective nature and small sample size of this study limit the generalization of its results.
    Type of Medium: Online Resource
    ISSN: 0039-2499 , 1524-4628
    URL: Article
    DOI: 10.1161/str.46.suppl_1.184
    RVK:
    XA 10000
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2015
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  • 20
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    Abstract WP355: Quality of Stroke Care Between 2008 and 2014 in Korea: Analysis of the Nationwide Acute Stroke Quality Assessment Program
    Ovid Technologies (Wolters Kluwer Health) ; 2019
    In:  Stroke Vol. 50, No. Suppl_1 ( 2019-02)
    Details
    In: Stroke, Ovid Technologies (Wolters Kluwer Health), Vol. 50, No. Suppl_1 ( 2019-02)
    Abstract: Introduction: Higher quality of stroke care based on guideline recommendations is associated with better clinical outcomes. However, there is limited information about contemporary status of quality of stroke care and its association with improvements in clinical outcomes in Korea. Methods: This retrospective observational study was performed by analyzing the data of the patients admitted to 258 acute stroke care hospitals covering an entire country from the Acute Stroke Quality Assessment Program, which was carried out by the Health Insurance Review and Assessment Service from 2008 to 2014. Six GWTG-Stroke performance measures (except prophylaxis for venous thromboembolism) were applied to evaluate quality of stroke care in Korea. The primary outcome variable was defect-free care, which is defined as the proportion of patients who received all of the performance measure interventions for which they were eligible. Multivariable analysis was performed to evaluate the association between defect-free care and clinical outcomes. Temporal trends and hospital variations of performance measures were evaluated. Results: Among 43 793 patients (mean age, 67±14 years; male, 55%) with acute stroke during the study period, 31 915 (72.9%) patients were hospitalized due to ischemic stroke or transient ischemic attack. The proportion of defect-free care for stroke steadily increased throughout the study period: from 80.2% in 2008 to 92.1% in 2014. Defect-free care was given more frequently in patients admitted to hospitals with a higher volume of stroke cases or intravenous thrombolysis administration, and stroke units. Patients who received defect-free care were associated with discharge to home (adjusted odds ratio 1.96; 95% CI 1.78-2.16) and 1-year survival (adjusted odds ratio 0.41; 95% CI 0.37-0.46). Only 60% of stroke patients were managed in hospitals with a certified stroke unit, and the distribution of certified stroke units showed an urban-to-rural gradient. Conclusions: The quality of stroke care in Korea has improved over time, and defect-free care was associated with discharge to home and 1-year mortality. There are still opportunities to improve the quality of stroke care in Korea by development of stroke networks in Korea.
    Type of Medium: Online Resource
    ISSN: 0039-2499 , 1524-4628
    URL: Article
    DOI: 10.1161/str.50.suppl_1.WP355
    RVK:
    XA 10000
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2019
    detail.hit.zdb_id: 1467823-8
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