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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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    detail.hit.zdb_id: 3306-6
    detail.hit.zdb_id: 1476593-7
    SSG: 5,21
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  • 3
    In: Stroke, Ovid Technologies (Wolters Kluwer Health), Vol. 53, No. 6 ( 2022-06), p. 1854-1862
    Abstract: To highlight the heterogeneity of acute temporal blood pressure (BP) changes in the ATACH-2 trial (Antihypertensive Treatment of Acute Cerebral Hemorrhage-2) and associations with the outcomes of intracerebral hemorrhage. Methods: One thousand patients with acute intracerebral hemorrhage, who had been randomized to intensive (110–139 mm Hg) or standard (140–179 mm Hg) systolic BP (SBP) lowering with intravenous nicardipine in ATACH-2 from 2011 to 2015, were analyzed about temporal changes in hourly maximum SBP up to 24 hours after randomization using group-based trajectory modeling. Outcomes included death or disability (modified Rankin Scale score 4–6) at 3 months, neurological deterioration within 24 hours (≥2-point decrease in Glasgow Coma Scale score or ≥4-point increase in National Institutes of Health Stroke Scale score), and acute kidney injury (≥0.3 mg/dL within 48 hours or ≥1.5-fold increase in serum creatinine) within 7 days after onset. Results: Group-based trajectory modeling revealed 4 SBP trajectory groups: moderate SBP (from ≈190 mm Hg at hospital arrival to 150–160 mm Hg after randomization; n=298), moderate-to-low SBP (from ≈190 mm Hg to 〈 140 mm Hg; n=395), high-to-low SBP (from 〉 210 mm Hg to 〈 140 mm Hg; n=134), and high SBP (from 〉 210 mm Hg to 160–170 mm Hg; n=173). Patients with intensive treatment accounted for 11.1%, 88.6%, 85.1%, and 1.7% of each group, respectively. Compared with the moderate-to-low SBP group, the high-to-low SBP group showed increased risks of death or disability at 3 months (adjusted odds ratio, 2.29 [95% CI, 1.24–4.26]) and acute kidney injury (adjusted odds ratio, 3.50 [95% CI, 1.83–6.69] ), while no increase in neurological deterioration was seen in this group (adjusted odds ratio, 0.48 [95% CI, 0.20–1.13]). The moderate SBP and high SBP groups showed no significant risk differences for such outcomes. Conclusions: Data-driven observation using a group-based trajectory modeling approach may be useful to clarify the relationship between antihypertensive treatment, temporal SBP changes, and outcomes in acute intracerebral hemorrhage. Registration: URL: https://www.clinicaltrials.gov ; Unique identifier: NCT01176565.
    Type of Medium: Online Resource
    ISSN: 0039-2499 , 1524-4628
    RVK:
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2022
    detail.hit.zdb_id: 1467823-8
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  • 4
    In: Stroke, Ovid Technologies (Wolters Kluwer Health), Vol. 51, No. 12 ( 2020-12), p. 3632-3639
    Abstract: Cerebral microbleeds (CMB) are associated with stroke and cognitive impairment. We previously reported a high prevalence of CMB in people with Streptococcus mutans expressing Cnm, a collagen-binding protein in the oral cavity. S. mutans is a major pathogen responsible for dental caries. Repeated challenge with S. mutans harboring the cnm gene encoding Cnm induced cerebral bleeding in stroke-prone spontaneously hypertensive rats. The purpose of this longitudinal study is to examine the relationship of cnm -positive S. mutans to the development of CMB. Methods: We retrospectively investigated patients with stroke receiving oral microbiological examination and head 3T magnetic resonance imaging evaluations twice in the period 2014 to 2019, allowing 〉 180-day interval. Patients with cnm -positive S. mutans were compared with those without. Quasi-Poisson regression models were used to explore associations between cnm -positive S. mutans and the increase in number of CMB between the 2 magnetic resonance imaging scans. Results: A total of 111 patients were identified; 21 (19%) with cnm -positive S. mutans and 90 (81%) without. Clinical history, including blood pressure and the use of antithrombotic agents, were comparable between the 2 groups. New CMB were more commonly observed in patients with cnm -positive S. mutans (52% versus 23%; P =0.008). The incidence of CMB was significantly higher in the group with cnm -positive S. mutans , especially in deep areas, (incidence rate ratios [95% CI], 5.1 [1.9–13.6] for CMB in any brain region; 15.0 [5.4–42.0] for deep CMB), which persisted after adjusting for age, sex, hypertension, and renal impairment (4.7 [1.8–11.9] for CMB in any brain region; 13.9 [4.3–44.5] for deep CMB). Conclusions: This study demonstrates that cnm -positive S. mutans is associated with an increased incidence of CMB. Treatment for cnm -positive S. mutans infection may be a novel microbiota-based therapeutic approach for stroke and cognitive impairment.
    Type of Medium: Online Resource
    ISSN: 0039-2499 , 1524-4628
    RVK:
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2020
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  • 5
    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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  • 6
    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
    detail.hit.zdb_id: 2037912-2
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  • 7
    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
    detail.hit.zdb_id: 1467823-8
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  • 8
    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
    detail.hit.zdb_id: 1467823-8
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  • 9
    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
    detail.hit.zdb_id: 1467823-8
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  • 10
    In: Journal of Stroke and Cerebrovascular Diseases, Elsevier BV, Vol. 28, No. 8 ( 2019-08), p. 2201-2206
    Type of Medium: Online Resource
    ISSN: 1052-3057
    Language: English
    Publisher: Elsevier BV
    Publication Date: 2019
    detail.hit.zdb_id: 2052957-0
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