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  • 1
    In: Hypertension Research, Springer Science and Business Media LLC, Vol. 46, No. 1 ( 2023-01), p. 75-83
    Abstract: The effects of acute systolic blood pressure levels achieved with continuous intravenous administration of nicardipine for Japanese patients with acute intracerebral hemorrhage on clinical outcomes were determined. A systematic review and individual participant data analysis of articles were performed based on prospective studies involving adults developing hyperacute intracerebral hemorrhage who were treated with intravenous nicardipine. Outcomes included death or disability at 90 days, defined as the modified Rankin Scale score of 4–6, and hematoma expansion, defined as an increase 6 mL or more from baseline to 24 h computed tomography. Of the total 499 Japanese patients (age 64.9 ± 11.8 years, 183 women, initial BP 203.5 ± 18.3/109.1 ± 17.2 mmHg) studied, death or disability occurred in 35.6%, and hematoma expansion occurred in 15.6%. Mean hourly systolic blood pressure during the initial 24 h was positively associated with death or disability (adjusted odds ratio 1.25, 95% confidence interval 1.03–1.52 per 10 mmHg) and hematoma expansion (1.49, 1.18–1.87). These odds ratios were relatively high as compared to the reported ones for overall global patients of this individual participant data analysis [1.12 (95% confidence interval 1.00–1.26) and 1.16 (1.02–1.32), respectively]. In conclusion, lower levels of systolic blood pressure by continuous intravenous nicardipine were associated with lower risks of hematoma expansion and 90-day death or disability in Japanese patients with hyperacute intracerebral hemorrhage. The impact of systolic blood pressure lowering on better outcome seemed to be stronger in Japanese patients than the global ones.
    Type of Medium: Online Resource
    ISSN: 0916-9636 , 1348-4214
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2023
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  • 2
    In: The Lancet, Elsevier BV, Vol. 396, No. 10262 ( 2020-11), p. 1574-1584
    Type of Medium: Online Resource
    ISSN: 0140-6736
    RVK:
    Language: English
    Publisher: Elsevier BV
    Publication Date: 2020
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    SSG: 5,21
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  • 3
    In: Stroke, Ovid Technologies (Wolters Kluwer Health), Vol. 52, No. 1 ( 2021-01), p. 12-19
    Abstract: We determined to identify patients with unknown onset stroke who could have favorable 90-day outcomes after low-dose thrombolysis from the THAWS (Thrombolysis for Acute Wake-Up and Unclear-Onset Strokes With Alteplase at 0.6 mg/kg) database. Methods: This was a subanalysis of an investigator-initiated, multicenter, randomized, open-label, blinded–end point trial. Patients with stroke with a time last-known-well 〉 4.5 hours who showed a mismatch between diffusion-weighted imaging (DWI) and fluid-attenuated inversion recovery were randomly assigned (1:1) to receive alteplase at 0.6 mg/kg intravenously or standard medical treatment. The patients were dichotomized by ischemic core size or National Institutes of Health Stroke Scale score, and the effects of assigned treatments were compared in each group. The efficacy outcome was favorable outcome at 90 days, defined as a modified Rankin Scale score of 0 to 1. Results: The median DWI-Alberta Stroke Program Early CT Score (ASPECTS) was 9, and the median ischemic core volume was 2.5 mL. Both favorable outcome (47.1% versus 48.3%) and any intracranial hemorrhage (26% versus 14%) at 22 to 36 hours were comparable between the 68 thrombolyzed patients and the 58 control patients. There was a significant treatment-by-cohort interaction for favorable outcome between dichotomized patients by ASPECTS on DWI ( P =0.026) and core volume ( P =0.035). Favorable outcome was more common in the alteplase group than in the control group in patients with DWI-ASPECTS 5 to 8 (RR, 4.75 [95% CI, 1.33–30.2]), although not in patients with DWI-ASPECTS 9 to 10. Favorable outcome tended to be more common in the alteplase group than in the control group in patients with core volume 〉 6.4 mL (RR, 6.15 [95% CI, 0.87–43.64]), although not in patients with volume ≤6.4 mL. The frequency of any intracranial hemorrhage did not differ significantly between the 2 treatment groups in any dichotomized patients. Conclusions: Patients developing unknown onset stroke with DWI-ASPECTS 5 to 8 showed favorable outcomes more commonly after low-dose thrombolysis than after standard treatment. Registration: URL: https://www.clinicaltrials.gov ; Unique Identifier: NCT02002325. URL: https://www.umin.ac.jp/ctr ; Unique Identifier: UMIN000011630.
    Type of Medium: Online Resource
    ISSN: 0039-2499 , 1524-4628
    RVK:
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2021
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  • 4
    In: Annals of Neurology, Wiley
    Abstract: This study was undertaken to determine the excess risk of antithrombotic‐related bleeding due to cerebral small vessel disease (SVD) burden. Methods In this observational, prospective cohort study, patients with cerebrovascular or cardiovascular diseases taking oral antithrombotic agents were enrolled from 52 hospitals across Japan between 2016 and 2019. Baseline multimodal magnetic resonance imaging acquired under prespecified conditions was assessed by a central diagnostic radiology committee to calculate total SVD score. The primary outcome was major bleeding. Secondary outcomes included bleeding at each site and ischemic events. Results Of the analyzed 5,250 patients (1,736 women; median age = 73 years, 9,933 patient‐years of follow‐up), antiplatelets and anticoagulants were administered at baseline in 3,948 and 1,565, respectively. Median SVD score was 2 (interquartile range = 1–3). Incidence rate of major bleeding was 0.39 (per 100 patinet‐years) in score 0, 0.56 in score 1, 0.91 in score 2, 1.35 in score 3, and 2.24 in score 4 (adjusted hazard ratio [aHR] for score 4 vs 0 = 5.47, 95% confidence interval [CI] = 2.26–13.23), that of intracranial hemorrhage was 0.11, 0.33, 0.58, 0.99, and 1.06, respectively (aHR = 9.29, 95% CI = 1.99–43.35), and that of ischemic event was 1.82, 2.27, 3.04, 3.91, and 4.07, respectively (aHR = 1.76, 95% CI = 1.08–2.86). In addition, extracranial major bleeding (aHR = 3.43, 95% CI = 1.13–10.38) and gastrointestinal bleeding (aHR = 2.54, 95% CI = 1.02–6.35) significantly increased in SVD score 4 compared to score 0. Interpretation Total SVD score was predictive for intracranial hemorrhage and probably for extracranial bleeding, suggesting the broader clinical relevance of cerebral SVD as a marker for safe implementation of antithrombotic therapy. ANN NEUROL 2024
    Type of Medium: Online Resource
    ISSN: 0364-5134 , 1531-8249
    Language: English
    Publisher: Wiley
    Publication Date: 2024
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  • 5
    In: Stroke, Ovid Technologies (Wolters Kluwer Health), Vol. 53, No. Suppl_1 ( 2022-02)
    Abstract: Introduction: Cervico-cephalic dissections (extracranial artery dissection [EAD] and intracranial artery dissection [IAD] ) are defined by a mural hematoma in the wall of a cervical or intracranial artery and represent an important cause of stroke in young adults. It is relatively uncommon in the general population and likely to represent the ethnic difference with higher frequency of IAD in Asian than European populations. A few studies examining the genetic contributions for these phenotypes were reported. In EAD, the PHACTR1 genes which had previously been identified as common genetic risk variants of hypertension and migraine was associated with EAD using genome-wide association study (GWAS) approaches. RNF213 , an important susceptibility gene for Moyamoya disease was associated with IAD in one small study (n=24) using a candidate-SNP analysis but no GWAS of IAD have been reported so far. We performed GWAS to identify common variants associated with IAD. Methods: A total of 100 Japanese patients with IAD based on imaging diagnostic criteria from multidisciplinary expert consensus were prospectively enrolled in National Cerebral and Cardiovascular Center from March 2011 to August 2018. Results: We performed GWAS in 100 IAD cases (61 men, 50 years of median age[IQR, 45-61]) and 8380 controls from the Tohoku Medical Megabank Project which is a publicly available healthy cohort. No variant reached to genome-wide significant but 14 variants (7 regions) showed nominal significant association with IAD (p 〈 10 -5 ). Among 14 variants, rs73828631 on RBMS3 gene showed highest association with IAD (odds ratio = 2.16, 95% confidence interval = 1.59-2.92; P = 3.08 х 10 -7 ). RBMS3 was previously identified as genetic loci associated with brain aneurysm. According to the Genotype-Tissue Expression (GTEx) project database, RBMS3 is highly expressed in artery. Conclusions: We identified potential 14 variants associated with IAD. We need to increase the number of IAD cases for further confirmation.
    Type of Medium: Online Resource
    ISSN: 0039-2499 , 1524-4628
    RVK:
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2022
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  • 6
    In: Stroke, Ovid Technologies (Wolters Kluwer Health), Vol. 54, No. Suppl_1 ( 2023-02)
    Abstract: Purpose: The purpose of this study was to examine the associations between oral anticoagulants (OACs) at onset and outcomes in acute ischemic stroke (AIS) patients with atrial fibrillation. Methods: AIS patients with comorbidity of atrial fibrillation (aged ≥18 years, pre-stroke modified Rankin Scale [mRS] 0-2) admitted within 24 hours after onset from January 2017 to December 2020 were examined from a long-lasting nationwide hospital-based multicenter prospective registry, the Japan Stroke Data Bank. Patients were classified into 3 groups according to anticoagulants at onset: no-anticoagulant group, warfarin group and DOAC group. The co-primary outcomes were the National Institutes of Stroke Scale (NIHSS) on admission and favorable outcome at discharge, corresponding to the mRS of 0-2. Mixed effects logistic regression was performed to examine the association between antithrombotic agents and these outcomes. Results: Of a total of 6,838 patients, 4,249 (62.1 %) patients were classified into the no-anticoagulant group, 907 (13.3 %) into warfarin group and 1,682 (24.6 %) into DOACs group. Median NIHSS score on admission was 7 [interquartile range: 2-19] in the warfarin group and 5 [2-15] in the DOAC group, versus 9 [3-20] in the no-anticoagulant group. Both warfarin and DOAC groups had lower NIHSS scores as compared to no-antithrombotic group (adjusted incidence rate ratio 0.96 [95% confidence interval 0.94-0.99] and 0.81 [0.79-0.83], respectively) after adjustment by age, sex, hypertension (HT), dyslipidemia (DL), diabetes mellitus (DM) and history of stroke. The rate of favorable outcome at discharge was 41.5 % in no-anticoagulant group, 42.0% in warfarin group and 48.1 % in DOACs group. In multivariable analysis, sex, NIHSS on admission, HT, DL, DM, history of stroke and intravenous thrombolysis and mechanical thrombectomy, DOACs group more frequently had favorable outcome (odds ratio 1.20 [95% CI 1.03-1.40] ) than no-anticoagulant group, but warfarin group did not (1.05 [0.86-1.27]). Conclusion: Taking DOACs prior to onset appears associated with milder stroke severity and a more favorable outcome following acute ischemic stroke in patients with atrial fibrillation.
    Type of Medium: Online Resource
    ISSN: 0039-2499 , 1524-4628
    RVK:
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2023
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  • 7
    In: Stroke, Ovid Technologies (Wolters Kluwer Health), Vol. 53, No. Suppl_1 ( 2022-02)
    Abstract: Introduction: The Japan Stroke Data Bank (JSDB) is a 20-year long ongoing hospital-based multicenter prospective registry of hospitalized patients with acute stroke/TIA based on a web database from 130 stroke centers distributed evenly over Japan. Hypothesis: Secular changes in the severity and functional outcome of stroke patients would be clarified by long-lasting hospital-based registries. Methods: Patients registered in JSDB within 7 days after stroke onset from Jan 2000 through Dec 2019 were studied. The initial severity was assessed by the NIHSS for ischemic stroke (IS) and intracerebral hemorrhage (ICH) and by the WFNS grading for subarachnoid hemorrhage (SAH). Outcomes at hospital discharge was assessed by the mRS. Results: Of a total 183,082 stroke patients, 135,268 (women in 39.8%) developed IS, 36,014 (women in 42.7%) developed ICH, and 11,800 (women in 67.2%) developed SAH. Median ages at onset increased and the NIHSS and WFNS scores decreased after multivariable-adjustment in all three stroke types. Patients with favorable outcome, corresponding to the mRS 0-2, significantly increased after age-adjustment in all three IS subtypes, remained increasing after further adjustment by NIHSS and stroke history only in cardioembolic stroke (OR 1.014, 95% CI 1.008-1.020, per year), and no longer increased after further adjustment by reperfusion therapy in any subtypes. Both the frequencies of unfavorable outcome, corresponding to the mRS 5-6, and in-hospital death, significantly decreased in cardioembolic stroke (OR 0.974, 95% CI 0.968-0.980) and large-artery atherosclerosis (OR 0.975, 95% CI 0.967-0.982, both for unfavorable outcome) after multivariable-adjustment. In ICH and SAH, favorable outcome significantly decreased after multivariable-adjustment, except for SAH in men. Both the frequencies of unfavorable outcome and death after SAH significantly decreased, but those after ICH were not. These findings were generally common to both sexes when separately analyzed. Conclusions: Short-term functional outcome improved in IS patients during the past 20 years presumably partly due to development of acute reperfusion therapy. The outcome of hemorrhagic stroke patients did not clearly show the improvement during the same duration.
    Type of Medium: Online Resource
    ISSN: 0039-2499 , 1524-4628
    RVK:
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2022
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  • 8
    In: Journal of the American Heart Association, Ovid Technologies (Wolters Kluwer Health), Vol. 10, No. 16 ( 2021-08-17)
    Abstract: To explore how the clinical impact of heart rate (HR) and heart rate variabilities (HRV) during the initial 24 hours after acute intracerebral hemorrhage (ICH) contribute to worse clinical outcomes. Methods and Results In the ATACH‐2 (Antihypertensive Treatment in Intracerebral Hemorrhage 2) trial, the HR was recorded for every 15 minutes from baseline to 1 hour and hourly during the initial 24 hours post‐randomization. We calculated the following: mean, standard deviation, coefficient of variation, successive variation, and average real variability (ARV). Outcomes were hematoma expansion at 24 hours and unfavorable functional outcome, defined as modified Rankin Scale score 4 to 6 at 90 days. Of the 1000 subjects in ATACH‐2, 994 with available HR data were included in the analyses. Overall, 262 experienced hematoma expansion, and 362 had unfavorable outcomes. Increased mean HR was linearly associated with unfavorable outcome (per 10 bpm increase adjusted odds ratio [aOR], 1.31, 95% CI, 1.14–1.50) but not with hematoma expansion, while HR‐ARV was associated with hematoma expansion (aOR, 1.06, 95% CI, 1.01–1.12) and unfavorable outcome (aOR, 1.07, 95% CI, 1.01–1.3). Every 10‐bpm increase in mean HR increased the probability of unfavorable outcome by 4.3%, while every 1 increase in HR‐ARV increased the probability of hematoma expansion by 1.1% and unfavorable outcome by 1.3%. Conclusions Increased mean HR and HR‐ARV within the initial 24 hours were independently associated with unfavorable outcome in acute ICH. Moreover, HR‐ARV was associated with hematoma expansion at 24 hours. This may have future therapeutic implications to accommodate HR and HRV in acute ICH. Registration URL: https://www.clinicaltrials.gov ; Unique Identifier: NCT01176565.
    Type of Medium: Online Resource
    ISSN: 2047-9980
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2021
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  • 9
    In: Stroke: Vascular and Interventional Neurology, Ovid Technologies (Wolters Kluwer Health)
    Abstract: It is unclear whether all patient subgroups with acute ischemic stroke have benefited from advances in reperfusion therapy. We investigated long‐term trends of reperfusion therapy and outcomes according to the stroke severity. METHODS Patients with acute ischemic stroke registered in the prospective nationwide hospital‐based registry between 2000 and 2020 were examined. Baseline National Institutes of Health Stroke Scale (NIHSS) score ≥10 and ≤5 was considered to indicate possible large vessel occlusions and minor deficits, respectively. Secular changes were assessed per 5‐year cohorts (2000–2005, 2006–2010, 2011–2015, 2016–2020). Outcomes included favorable outcome (modified Rankin scale score 0–2 at discharge). RESULTS Of 127 741 patients, NIHSS score was ≥10 in 31 747 patients (24.9%), 6–9 in 17 083 patients (13.4%), and ≤5 in 78 911 patients (61.8%). In patients with NIHSS score ≥10, intravenous thrombolysis frequency increased from 1.6% to 26.5% between the 2000 to 2005 and 2016 to 2020 cohorts; endovascular therapy frequency increased from 2.0% to 29.8%. Favorable outcomes increased over time (adjusted odds ratio per 1‐cohort, 1.254 [95% CI, 1.204–1.306] ). In patients with NIHSS score 6–9, intravenous thrombolysis frequency increased from 0.5% to 16.4%, and endovascular therapy frequency increased from 1.1% to 9.0%. Favorable outcomes did not change over time (1.005 [0.966–1.046]). In patients with NIHSS score ≤5, intravenous thrombolysis frequency increased from 0.2% to 5.1%, and endovascular therapy frequency increased from 0.7% to 2.8%. Favorable outcomes decreased over time (0.954 [0.931–0.978] ). CONCLUSIONS Use of reperfusion therapy has increased, particularly in patients with NIHSS score ≥10. Favorable outcomes significantly increased over time in patients with NIHSS score ≥10 but decreased in those with NIHSS score ≤5.
    Type of Medium: Online Resource
    ISSN: 2694-5746
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2023
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  • 10
    In: International Journal of Stroke, SAGE Publications, Vol. 17, No. 6 ( 2022-07), p. 628-636
    Abstract: We determined to investigate the incidence and clinical impact of new cerebral microbleeds after intravenous thrombolysis in patients with acute stroke. Methods The THAWS was a multicenter, randomized trial to study the efficacy and safety of intravenous thrombolysis with alteplase in patients with wake-up stroke or unknown onset stroke. Prescheduled T2*-weighted imaging assessed cerebral microbleeds at three time points: baseline, 22–36 h, and 7–14 days. Outcomes included new cerebral microbleeds development, modified Rankin Scale (mRS) ≥3 at 90 days, and change in the National Institutes of Health Stroke Scale (NIHSS) score from 24 h to 7 days. Results Of all 131 patients randomized in the THAWS trial, 113 patients (mean 74.3 ± 12.6 years, 50 female, 62 allocated to intravenous thrombolysis) were available for analysis. Overall, 46 (41%) had baseline cerebral microbleeds (15 strictly lobar cerebral microbleeds, 14 mixed cerebral microbleeds, and 17 deep cerebral microbleeds). New cerebral microbleeds only emerged in the intravenous thrombolysis group (seven patients, 11%) within a median of 28.3 h, and did not additionally increase within a median of 7.35 days. In adjusted models, number of cerebral microbleeds (relative risk (RR) 1.30, 95% confidence interval (CI): 1.17–1.44), mixed distribution (RR 19.2, 95% CI: 3.94–93.7), and cerebral microbleeds burden ≥5 (RR 44.9, 95% CI: 5.78–349.8) were associated with new cerebral microbleeds. New cerebral microbleeds were associated with an increase in NIHSS score ( p = 0.023). Treatment with alteplase in patients with baseline ≥5 cerebral microbleeds resulted in a numerical shift toward worse outcomes on ordinal mRS (median [IQR]; 4 [3–4] vs. 0 [0–3]), compared with those with 〈 5 cerebral microbleeds (common odds ratio 17.1, 95% CI: 0.76–382.8). The association of baseline ≥5 cerebral microbleeds with ordinal mRS score differed according to the treatment group ( p interaction = 0.042). Conclusion New cerebral microbleeds developed within 36 h in 11% of the patients after intravenous thrombolysis, and they were significantly associated with mixed-distribution and ≥5 cerebral microbleeds. New cerebral microbleeds development might impede neurological improvement. Furthermore, cerebral microbleeds burden might affect the effect of alteplase.
    Type of Medium: Online Resource
    ISSN: 1747-4930 , 1747-4949
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2022
    detail.hit.zdb_id: 2211666-7
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