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  • SAGE Publications  (151)
  • 1
    Online Resource
    Online Resource
    Optimal use of antithrombotic agents in ischemic stroke with atrial fibrillation and large artery atherosclerosis
    SAGE Publications ; 2023
    In:  International Journal of Stroke Vol. 18, No. 7 ( 2023-08), p. 812-820
    Details
    In: International Journal of Stroke, SAGE Publications, Vol. 18, No. 7 ( 2023-08), p. 812-820
    Abstract: Optimal antithrombotic regimens to prevent recurrent stroke in patients with ischemic stroke due to atrial fibrillation (AF) and atherosclerotic large-vessel stenosis remain unknown. Aims: This study aimed to evaluate the effect of multiple antithrombotic therapies on outcomes at 1 year after ischemic stroke due to two or more causes. Methods: We identified 862 patients with ischemic stroke due to AF and large artery atherosclerosis from the linked data. These patients were categorized into three groups according to antithrombotic therapies at discharge: (1) antiplatelets, (2) oral anticoagulants (OAC), and (3) antiplatelets plus OAC. The study outcomes were recurrent ischemic stroke, composite outcomes for cardiovascular events, and major bleeding after 1 year. Inverse probability of treatment weighting (IPTW) was used to balance the three groups using propensity scores. Results: Among 862 patients, 169 (19.6%) were treated with antiplatelets, 405 (47.0%) were treated with OAC, and 288 (33.4%) were treated with antiplatelets and OAC. After applying IPTW, only OAC had a significant beneficial effect on the 1-year composite outcome (hazard ratio (HR): 0.37, 95% confidence interval (CI): 0.23–0.60, p  〈  0.001) and death (HR: 0.35, 95% CI: (0.19–0.63), p  〈  0.001). The combination of antiplatelet agents and OAC group had an increased risk of major bleeding complications (HR: 5.27, 95% CI: (1.31–21.16), p = 0.019). However, there was no significant difference in 1-year recurrent stroke events among the three groups. Conclusion: This study demonstrated that OAC monotherapy was associated with lower risks of composite outcome and death in patients at 1 year after ischemic stroke due to AF and atherosclerotic stenosis. In addition, the combination of an antiplatelet and OAC had a high risk of major bleeding.
    Type of Medium: Online Resource
    ISSN: 1747-4930 , 1747-4949
    URL: Article
    DOI: 10.1177/17474930231158211
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2023
    detail.hit.zdb_id: 2211666-7
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  • 2
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    Post-Stroke Depressive Symptoms: Varying Responses to Escitalopram by Individual Symptoms and Lesion Location
    SAGE Publications ; 2021
    In:  Journal of Geriatric Psychiatry and Neurology Vol. 34, No. 6 ( 2021-11), p. 565-573
    Details
    In: Journal of Geriatric Psychiatry and Neurology, SAGE Publications, Vol. 34, No. 6 ( 2021-11), p. 565-573
    Abstract: The efficacy of antidepressants in post-stroke depressive symptoms (PSD) varies. We aimed to examine whether the effect of escitalopram on PSD differs according to individual depressive symptoms and stroke lesion location. Methods: This is a post hoc analysis of EMOTION ( ClinicalTrials.gov , NCT01278498), a randomized, placebo-controlled, double-blind trial that examined the efficacy of escitalopram on depression in acute stroke patients (237 with placebo, 241 with escitalopram). Depressive symptoms were evaluated with the 10-item Montgomery-Åsberg Depression Rating Scale (MADRS). Changes in MADRS and individual item scores at 12 weeks were compared between the treatment groups and among the stroke lesion location groups. Stroke lesion locations were grouped according to the anatomical distribution of serotonin fibers that originate from the midbrain/pons and spread to the forebrain via subcortical structures: “Midbrain-Pons,” “Frontal-Subcortical,” and “Others.” Least-squares means were calculated to demonstrate the independent effect of lesion location. Results: Total MADRS scores decreased more significantly in the escitalopram than in the placebo group, while a significant effect of escitalopram was observed in only 3 items: apparent sadness, reported sadness, pessimistic thoughts. In the lesion location analyses, escitalopram users in the Frontal-Subcortical group showed significant improvement in total MADRS scores (placebo [n = 130] vs. escitalopram [n = 148] , least-square mean [95% CI]: -2.3 [-3.5 to -0.2] vs. -4.5 [-5.5 to -3.4], p = .005), while those in the Midbrain-Pons and Others groups did not. Conclusions: The effect of escitalopram on PSD may be more prominent in patients with particular depressive symptoms and stroke lesion locations, suggesting the need for tailored treatment strategies.
    Type of Medium: Online Resource
    ISSN: 0891-9887 , 1552-5708
    URL: Article
    DOI: 10.1177/0891988720957108
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2021
    detail.hit.zdb_id: 2094096-8
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  • 3
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    Cilostazol versus aspirin in ischemic stroke with cerebral microbleeds versus prior intracerebral hemorrhage
    SAGE Publications ; 2021
    In:  International Journal of Stroke Vol. 16, No. 9 ( 2021-12), p. 1019-1030
    Details
    In: International Journal of Stroke, SAGE Publications, Vol. 16, No. 9 ( 2021-12), p. 1019-1030
    Abstract: In PreventIon of CArdiovascular Events in Ischaemic Stroke Patients with High Risk of Cerebral HaemOrrhage (PICASSO), cilostazol versus aspirin was comparable for the end points of cerebral hemorrhage and major vascular events. However, underlying hemorrhage-prone lesions could modify the treatment effect. Aims We explored whether the safety and efficacy of cilostazol versus aspirin would differ between hemorrhage-prone lesions (multiple cerebral microbleeds vs. prior intracerebral hemorrhage). Methods In this post hoc analysis of PICASSO, we divided patients into the cerebral microbleeds and prior intracerebral hemorrhage subgroups. The primary safety end point was the first occurrence of cerebral hemorrhage. The primary efficacy end point was the composite of stroke, myocardial infarction, or vascular death. Results Of 1512 patients, 903 (59.7%) had multiple cerebral microbleeds and 609 (40.3%) had prior intracerebral hemorrhage. The cerebral hemorrhage risk was lower with cilostazol versus aspirin (0.12%/year vs. 1.49%/year; hazard ratio, 0.08 [95% confidence interval 0.01–0.60]; p = 0.015) in the cerebral microbleeds subgroup, but was not different (1.26%/year vs. 0.79%/year; hazards ratio 1.60 [0.52–4.90] ; p = 0.408) in the prior intracerebral hemorrhage subgroup. The interaction of treatment-by-subgroup was significant ( p interaction  = 0.011). For the composite of major vascular events, there was a trend toward a lower risk with cilostazol versus aspirin (3.56%/year vs. 5.53%/year; hazards ratio 0.64 [0.41–1.01]; p = 0.056) in the cerebral microbleeds subgroup, but was comparable (5.21%/year vs. 5.05%/year; hazards ratio 1.03 [0.63–1.67] ; p = 0.913) in the prior intracerebral hemorrhage subgroup without a significant treatment-by-subgroup interaction ( p interaction  = 0.165). Conclusions Cilostazol versus aspirin might be a better option in ischemic stroke with multiple cerebral microbleeds, but confirmatory trials are needed. Clinical Trial Registration URL: http://www.clinicaltrials.gov . NCT01013532.
    Type of Medium: Online Resource
    ISSN: 1747-4930 , 1747-4949
    URL: Article
    DOI: 10.1177/1747493020941273
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2021
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  • 4
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    Should we exclude acute stroke patients with previous intracerebral hemorrhage from receiving intravenous thrombolysis?
    SAGE Publications ; 2016
    In:  International Journal of Stroke Vol. 11, No. 7 ( 2016-10), p. 783-790
    Details
    In: International Journal of Stroke, SAGE Publications, Vol. 11, No. 7 ( 2016-10), p. 783-790
    Abstract: Current guidelines have contraindicated history of intracerebral hemorrhage for intravenous recombinant tissue plasminogen activator. Aim This study aimed to investigate the safety and effectiveness of intravenous recombinant tissue plasminogen activator for patients who had previous intracerebral hemorrhage on history or initial brain magnetic resonance imaging. Methods Using a prospective multicenter stroke registry database, we identified acute ischemic stroke patients treated with intravenous recombinant tissue plasminogen activator within 4.5 h of onset. Previous intracerebral hemorrhage was defined as having a clinical history or evidence of old intracerebral hemorrhage on initial brain magnetic resonance imaging. Associations of previous intracerebral hemorrhage with symptomatic hemorrhagic transformation during hospitalization and functional outcome and mortality at discharge and three months were analyzed. Results Among 1495 patients who were treated with intravenous recombinant tissue plasminogen activator, 73 (4.9%) had previous intracerebral hemorrhage; 9 on history only, 61 on magnetic resonance imaging only and 3 on both. Of those 1495 patients, 71 (4.7%) experienced symptomatic hemorrhagic transformation; 6.8% in patients with previous intracerebral hemorrhage and 4.6% in those without previous intracerebral hemorrhage. Multivariable logistic regression analysis showed that previous intracerebral hemorrhage did not significantly increase the risk of symptomatic hemorrhagic transformation (odds ratio 1.08, 95% confidence interval 0.39–2.96) mortality, and most of functional outcome measures Conclusions Previous intracerebral hemorrhage may neither increase the risk of symptomatic hemorrhagic transformation nor alter major clinical outcomes in acute ischemic stroke patients receiving intravenous recombinant tissue plasminogen activator. This study suggests reconsideration of prior history of intracerebral hemorrhage as an exclusion criterion for intravenous recombinant tissue plasminogen activator administration in acute ischemic stroke.
    Type of Medium: Online Resource
    ISSN: 1747-4930 , 1747-4949
    URL: Article
    DOI: 10.1177/1747493016654289
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2016
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  • 5
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    Characteristics and management of stroke in Korea: 2014–2018 data from Korean Stroke Registry
    SAGE Publications ; 2020
    In:  International Journal of Stroke Vol. 15, No. 6 ( 2020-08), p. 619-626
    Details
    In: International Journal of Stroke, SAGE Publications, Vol. 15, No. 6 ( 2020-08), p. 619-626
    Abstract: Lifestyle changes and evolving healthcare practices in Korea have influenced disease patterns and medical care. Since strokes have high disease burden in countries with aging populations, it is necessary to evaluate the associated recent disease characteristics and patient care patterns. The Korean Stroke Registry is a nationwide, multicenter, prospective, hospital-based stroke registry in Korea used to monitor these changes across the population. Aims We aimed to evaluate the recent status of clinical characteristics and management of stroke cases in order to identify changes in the Korean population across time. Methods This study used Korean Stroke Registry data from patients experiencing ischemic stroke or transient ischemic attack patients, between 2014 and 2018. We analyzed data on demographics, risk factors, stroke subtypes, and treatments that included thrombolysis. Results A total of 39,291 patients (mean age 68.0 ± 13.0, 58.3% male) were analyzed. The proportions of hypertension, diabetes mellitus, dyslipidemia, atrial fibrillation, and prior stroke were 63.4%, 30.9%, 27.7%, 19.4%, and 17.1%, respectively. In the stroke subtype analysis, the frequency of large artery atherosclerosis was highest (32.6%), followed by cardioembolism (21.3%) and small vessel occlusion (19.9%). Acute reperfusion therapy was conducted in 15.3% of cases (11.7% using intravenous tPA and 7.3% using intra-arterial thrombectomy). Intra-arterial thrombectomy also demonstrated a steep increasing trend over time (RR 1.095 (1.060–1.131), p  〈  0.001). Conclusions This study provided analysis of nationwide, hospital-based, quality-controlled data from the Korean Stroke Registry database regarding changes in the characteristics, risk factors, and treatments of strokes in Korea.
    Type of Medium: Online Resource
    ISSN: 1747-4930 , 1747-4949
    URL: Article
    DOI: 10.1177/1747493019884517
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2020
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  • 6
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    Current Status of Acute Stroke Management in Korea: A Report on a Multicenter, Comprehensive Acute Stroke Registry
    SAGE Publications ; 2014
    In:  International Journal of Stroke Vol. 9, No. 4 ( 2014-06), p. 514-518
    Details
    In: International Journal of Stroke, SAGE Publications, Vol. 9, No. 4 ( 2014-06), p. 514-518
    Abstract: There are limited data on the utilization of diagnostics and the variation of treatments at the national level in acute stroke care. Clinical Research Center for Stroke – 5th division stroke registry aimed to describe stroke statistics and quality of care in Korea and to implement quality indicators. Clinical Research Center for Stroke – 5th division registry was established in April 2008 and covers pretreatment demographics, medical and stroke severity measures, diagnostic evaluation, hyperacute revascularization, in-hospital management, discharge disposition, quality indicators, and long-term functional outcomes. Consecutive stroke cases from 12 participating centers are registered to a web-based database. Meticulous data management and auditing policy were applied. A total of 14 792 ischemic stroke cases were enrolled from April 2008 to January 2012. The median National Institutes of Health Stroke Scale score was 4 at admission, with median delay of onset to arrival of 14 h. Rate of risk factor management before stroke exceeds more than 80% for hypertension and diabetes. Revascularization procedures were performed in 1736 subjects (12%), and 34% were endovascular ( n = 598). Substantial variability was noted in the preferred modality of hyperacute revascularization (range of endovascular recanalization = 6–60%), use of computed tomography (30–93%), and perfusion imaging (2–96%). The Clinical Research Center for Stroke – 5th division registry documented that the current practice of acute stroke care in South Korea largely met the standard of guidelines, but variability of practice still remains. The registry would provide an opportunity to evaluate the quality of stroke care across South Korea and compare it with that of other countries.
    Type of Medium: Online Resource
    ISSN: 1747-4930 , 1747-4949
    URL: Article
    DOI: 10.1111/ijs.12199
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2014
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  • 7
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    Quality of acute stroke care in Korea (2008–2014): Retrospective analysis of the nationwide and nonselective data for quality of acute stroke care
    SAGE Publications ; 2019
    In:  European Stroke Journal Vol. 4, No. 4 ( 2019-12), p. 337-346
    Details
    In: European Stroke Journal, SAGE Publications, Vol. 4, No. 4 ( 2019-12), p. 337-346
    Type of Medium: Online Resource
    ISSN: 2396-9873 , 2396-9881
    URL: Article
    DOI: 10.1177/2396987319849983
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2019
    detail.hit.zdb_id: 2851287-X
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  • 8
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    Gender Differences in the Age-Stratified Prevalence of Risk Factors in Korean Ischemic Stroke Patients: A Nationwide Stroke Registry-Based Cross-Sectional Study
    SAGE Publications ; 2014
    In:  International Journal of Stroke Vol. 9, No. 6 ( 2014-08), p. 759-765
    Details
    In: International Journal of Stroke, SAGE Publications, Vol. 9, No. 6 ( 2014-08), p. 759-765
    Abstract: Although ethnic or cultural differences affect prevalence of cardiovascular risk factors, limited information is available about the age- and gender-stratified prevalence of the risk factors in Asian stroke population. Aims and hypothesis We assessed gender- and age-stratified prevalences of major risk factors in Korean stroke patients, and assumed that the gender differences are attenuated by adjustment with lifestyle factors. Methods Using the nationwide hospital-based stroke registry, we identified 9417 ischemic stroke patients admitted between April 2008 and January 2011. Prevalence of hypertension, diabetes, hyperlipidemia, atrial fibrillation, prior stroke, and coronary heart disease was assessed in both genders by age groups. We analyzed gender differences of the prevalence among the age groups by calculating prevalence ratio, and further explored the influence of lifestyle factors on the gender difference in multivariable analyses. Results Hypertension and hyperlipidemia were more common in men until middle age, but after that more common in women, whereas diabetes was more common in women after 65 years of age. Atrial fibrillation increased steadily with age in both genders but was more common in women through all age groups. Prior stroke and coronary heart disease showed inconsistent gender differences. Gender differences in hypertension and diabetes among the age groups were attenuated by adjustment with accompanying risk factors including lifestyle factors. Conclusion Korean women with stroke had more hypertension and hyperlipidemia after middle age, more diabetes after 65 years, and more atrial fibrillation throughout all ages. Strategies to control risk factors in women at risk for stroke are eagerly needed.
    Type of Medium: Online Resource
    ISSN: 1747-4930 , 1747-4949
    URL: Article
    DOI: 10.1111/ijs.12146
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2014
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  • 9
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    Serum cystatin C is associated with subclinical atherosclerosis in patients with type 2 diabetes: A retrospective study
    SAGE Publications ; 2018
    In:  Diabetes and Vascular Disease Research Vol. 15, No. 1 ( 2018-01), p. 24-30
    Details
    In: Diabetes and Vascular Disease Research, SAGE Publications, Vol. 15, No. 1 ( 2018-01), p. 24-30
    Type of Medium: Online Resource
    ISSN: 1479-1641 , 1752-8984
    URL: Article
    DOI: 10.1177/1479164117738156
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2018
    detail.hit.zdb_id: 2250797-8
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  • 10
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    Changes in fecal metabolic and lipidomic features by anti-TNF treatment and prediction of clinical remission in patients with ulcerative colitis
    SAGE Publications ; 2023
    In:  Therapeutic Advances in Gastroenterology Vol. 16 ( 2023-01), p. 175628482311681-
    Details
    In: Therapeutic Advances in Gastroenterology, SAGE Publications, Vol. 16 ( 2023-01), p. 175628482311681-
    Abstract: Therapeutic targets for ulcerative colitis (UC) and prediction models of antitumor necrosis factor (TNF) therapy outcomes have not been fully reported. Objective: Investigate the characteristic metabolite and lipid profiles of fecal samples of UC patients before and after adalimumab treatment and develop a prediction model of clinical remission following adalimumab treatment. Design: Prospective, observational, multicenter study was conducted on moderate-to-severe UC patients ( n = 116). Methods: Fecal samples were collected from UC patients at 8 and 56 weeks of adalimumab treatment and from healthy controls (HC, n = 37). Clinical remission was assessed using the Mayo score. Metabolomic and lipidomic analyses were performed using gas chromatography mass spectrometry and nano electrospray ionization mass spectrometry, respectively. Orthogonal partial least squares discriminant analysis was performed to establish a remission prediction model. Results: Fecal metabolites in UC patients markedly differed from those in HC at baseline and were changed similarly to those in HC during treatment; however, lipid profiles did not show these patterns. After treatment, the fecal characteristics of remitters (RM) were closer to those of HC than to those of non-remitters (NRM). At 8 and 56 weeks, amino acid levels in RM were lower than those in NRM and similar to those in HC. After 56 weeks, levels of 3-hydroxybutyrate, lysine, and phenethylamine decreased, and dodecanoate level increased in RM similarly to those in HC. The prediction model of long-term remission in male patients based on lipid biomarkers showed a higher performance than clinical markers. Conclusion: Fecal metabolites in UC patients markedly differ from those in HC, and the levels in RM are changed similarly to those in HC after anti-TNF therapy. Moreover, 3-hydroxybutyrate, lysine, phenethylamine, and dodecanoate are suggested as potential therapeutic targets for UC. A prediction model of long-term remission based on lipid biomarkers may help implement personalized treatment.
    Type of Medium: Online Resource
    ISSN: 1756-2848 , 1756-2848
    URL: Article
    DOI: 10.1177/17562848231168199
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2023
    detail.hit.zdb_id: 2440710-0
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