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  • Ovid Technologies (Wolters Kluwer Health)  (5)
  • Seo, Woo-Keun  (5)
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  • Ovid Technologies (Wolters Kluwer Health)  (5)
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  • 1
    In: Stroke, Ovid Technologies (Wolters Kluwer Health), Vol. 51, No. 4 ( 2020-04), p. 1231-1239
    Abstract: The TST trial (Treat Stroke to Target) evaluated the benefit of targeting a LDL (low-density lipoprotein) cholesterol of 〈 70 mg/dL to reduce the risk of cardiovascular events in 2860 patients with ischemic stroke with atherosclerotic stenosis of cerebral vasculature or aortic arch plaque 〉 4 mm, in a French and Korean population. The follow-up lasted a median of 5.3 years in French patients (similar to the median follow-up time in the SPARCL trial [Stroke Prevention by Aggressive Reduction in Cholesterol Level]) and 2.0 years in Korean patients. Exposure duration to statin is a well-known driver for cardiovascular risk reduction. We report here the TST results in the French cohort. Methods— One thousand seventy-three French patients were assigned to 〈 70 mg/dL (1.8 mmol/L) and 1075 to 100±10 mg/dL (90–110 mg/dL, 2.3–2.8 mmol/L). To achieve these goals, investigators used the statin and dosage of their choice and added ezetimibe on top if needed. The primary outcome was the composite of ischemic stroke, myocardial infarction, new symptoms requiring urgent coronary or carotid revascularization and vascular death. Results— After a median follow-up of 5.3 years, the achieved LDL cholesterol was 66 (1.69 mmol/L) and 96 mg/dL (2.46 mmol/L) on average, respectively. The primary end point occurred in 9.6% and 12.9% of patients, respectively (HR, 0.74 [95% CI, 0.57–0.94]; P =0.019). Cerebral infarction or urgent carotid revascularization following transient ischemic attack was reduced by 27% ( P =0.046). Cerebral infarction or intracranial hemorrhage was reduced by 28% ( P =0.023). The primary outcome or intracranial hemorrhage was reduced by 25% ( P =0.021). Intracranial hemorrhages occurred in 13 and 11 patients, respectively (HR, 1.17 [95% CI, 0.53–2.62]; P =0.70). Conclusions— After an ischemic stroke of documented atherosclerotic origin, targeting a LDL cholesterol of 〈 70 mg/dL during 5.3 years avoided 1 subsequent major vascular event in 4 (number needed to treat of 30) and no increase in intracranial hemorrhage. Registration— URL: https://www.clinicaltrials.gov ; Unique identifier: NCT01252875.
    Type of Medium: Online Resource
    ISSN: 0039-2499 , 1524-4628
    RVK:
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2020
    detail.hit.zdb_id: 1467823-8
    Location Call Number Limitation Availability
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  • 2
    In: Stroke, Ovid Technologies (Wolters Kluwer Health), Vol. 54, No. 8 ( 2023-08), p. 1993-2001
    Abstract: Whether a strategy to target an LDL (low-density lipoprotein) cholesterol 〈 70 mg/dL is more effective when LDL is reduced 〉 50% from baseline rather than 〈 50% from baseline has not been investigated. METHODS: The Treat Stroke to Target trial was conducted in France and South Korea in 61 sites between March 2010 and December 2018. Patients with ischemic stroke in the previous 3 months or transient ischemic attack within the previous 15 days and evidence of cerebrovascular or coronary artery atherosclerosis were randomly assigned to a target LDL cholesterol of 〈 70 mg/dL or 100±10 mg/dL, using statin and/or ezetimibe as needed. We used the results of repeated LDL measurements (median, 5 [2–6] per patient) during 3.9 years (interquartile range, 2.1–6.8) of follow-up. The primary outcome was the composite of ischemic stroke, myocardial infarction, new symptoms requiring urgent coronary or carotid revascularization, and vascular death. Cox regression model including lipid-lowering therapy as a time-varying variable, after adjustment for randomization strategy, age, sex, index event (stroke or transient ischemic attack), and time since the index event. RESULTS: Among 2860 patients enrolled, patients in the lower target group who had 〉 50% LDL cholesterol reduction from baseline during the trial had a higher baseline LDL cholesterol and a lower LDL cholesterol achieved as compared to patients who had 〈 50% LDL cholesterol reduction (155±32 and 62 mg/dL versus 121±34 and 74 mg/dL, respectively, P 〈 0.001 for both). In the 〈 70 mg/dL target group, patients with 〉 50% LDL reduction had a significant reduction in the primary outcome as compared to the higher target group (hazard ratio, 0.61 [95% CI, 0.43–0.88]; P =0.007) and patients with 〈 50% LDL reduction from baseline had little reduction (hazard ratio, 0.96 [95% CI, 0.73–1.26]; P =0.75). CONCLUSIONS: In this post hoc analysis of the TST trial, targeting an LDL cholesterol of 〈 70 mg/dL reduced the risk of primary outcome compared with 100±10 mg/dL provided LDL cholesterol reduction from baseline was superior to 50%, thereby suggesting that the magnitude of LDL cholesterol reduction was as important to consider as the target level to achieve. REGISTRATION: URL: https://www.clinicaltrials.gov ; Unique identifier: NCT01252875. URL: https://clinicaltrialsregister.eu ; Unique identifier: EUDRACT2009-A01280-57.
    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
    Location Call Number Limitation Availability
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  • 3
    In: Medicine, Ovid Technologies (Wolters Kluwer Health), Vol. 100, No. 3 ( 2021-01-22), p. e24000-
    Abstract: The performance of scoring systems for risk stratification in patients with atrial fibrillation (AF) was not validated well in patients with stroke. The purpose of this study was to evaluate whether the risk scoring systems predict vascular outcomes in stroke patients with AF. Data were obtained from a nationwide multicenter registry for acute stroke with AF from January 1, 2013, to December 31, 2015. We investigated the predictive power of the CHADS 2 , CHA 2 DS 2 -VASc, ATRIA, and Essen stroke scores in stroke patients with AF. The subjects were further stratified into groups according to treatment with or without oral anticoagulants (OACs). A total of 3112 stroke with AF subjects were included. The rate of recurrent ischemic stroke and any stroke were not associated with the CHADS 2 , CHA 2 DS 2 -VASc, ATRIA, and Essen stroke risk scores. The risks of death and major adverse cerebrovascular and cardiovascular events (MACEs) increased sequentially with the increase of each risk score in OAC group. (the range of C-index 0.544–0.558 for recurrent ischemic stroke; 0.523–0.537 for any stroke; 0.580–0.597 for death; 0.564–0.583 for MACEs). However, in the group treated with OACs, all risk scores were significantly associated with the risk of MACEs. The C-statistics of the 4 scoring systems were 0.544 to 0.558, 0.523 to 0.537, 0.580 to 0.597, 0.564 to 0.583, respectively, for recurrent ischemic stroke, any stroke, death, and MACEs. The performance of the CHADS 2 , CHA 2 DS 2 -VASc, ATRIA, and Essen stroke risk scores for the prediction of recurrent stroke was unsatisfactory in stroke patients with AF whereas the performance for the prediction of recurrent stroke was not MACEs or death was good. A new risk stratification scheme that is specific for secondary stroke prevention in the AF population is needed.
    Type of Medium: Online Resource
    ISSN: 0025-7974 , 1536-5964
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2021
    detail.hit.zdb_id: 2049818-4
    Location Call Number Limitation Availability
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  • 4
    In: Stroke, Ovid Technologies (Wolters Kluwer Health), Vol. 51, No. Suppl_1 ( 2020-02)
    Abstract: Introduction: Oral anticoagulant therapy is the primary treatment for the prevention of recurrent ischemic stroke in patients with atrial fibrillation (AF). Early anticoagulant therapy can be beneficial for the prevention of recurrent ischemic stroke, however, also can provoke symptomatic intracranial hemorrhage. This study aims to evaluate the efficacy and safety of standard oral anticoagulant therapy adherent to the European Society of Cardiology (ESC) guidelines compared to early oral anticoagulant therapy. Methods: Acute ischemic stroke patients with AF were included from a nationwide multicenter registry (K-ATTENTION). The primary outcome was recurrent all-type stroke during 90 days of follow-up. Secondary outcomes were major adverse cardiovascular events (MACE), ischemic stroke, intracranial hemorrhage, acute coronary syndrome, all-cause death, and major hemorrhage. The propensity score was used to match the baseline characteristics between the two treatment groups. Results: Among 2,321 eligible patients, 532 patients with standard anticoagulation were matched to 532 patients with early anticoagulation. Eight participants (1.5%) with standard anticoagulation had recurrence of all-type stroke compared with 19 (3.5%) of participants with early anticoagulation (odds ratio [OR], 0.41; 95% confidence interval [CI] , 0.18-0.95; P=0.038). Standard anticoagulation was also associated with reduced risk of recurrent ischemic stroke (OR, 0.30; 95% CI, 0.11-0.82; P=0.019). Other secondary outcomes, including intracranial hemorrhage and major hemorrhage, appeared not to be informative. Conclusions: In conclusion, standard oral anticoagulant therapy adherent to ESC guidelines reduces the risk of recurrent all-type stroke and ischemic stroke compared to early oral anticoagulant therapy.
    Type of Medium: Online Resource
    ISSN: 0039-2499 , 1524-4628
    RVK:
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2020
    detail.hit.zdb_id: 1467823-8
    Location Call Number Limitation Availability
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  • 5
    In: Stroke, Ovid Technologies (Wolters Kluwer Health), Vol. 50, No. Suppl_1 ( 2019-02)
    Abstract: Background: While transthoracic echocardiography (TTE) is performed to find out potential embolic sources and certain cardiac abnormalities as a routine workup of stroke, clinical implication of echocardiographic findings for long-term outcomes in atrial fibrillation (AF)-related stroke patients has been unknown. Methods: This was a sub-study of K-ATTENTION (Korean ATrial fibrillaTion EvaluatioN regisTry in Ischemic strOke patieNts), a multicenter-based cohort composed of prospective stroke registries from 11 tertiary centers. All stroke survivals enrolled in this study underwent TTE during hospitalization. Echocardiographic findings included left atrial (LA) diameter, left ventricular ejection fraction (LVEF), LV end-diastolic dimension (LVEDV), stenosis and regurgitation of mitral and aortic valves, and peak trans-mitral filling velocity/mean mitral annular velocity during early diastole (E/e’ ratio). Indexed-LA size was acquired as dividing LA size by body surface area. LV systolic function was grouped into normal (LVEF≥55%), mild (55% 〉 LVEF 〉 40%), and severe (LVEF≤40%). Level of E/e’ ratio associated with LV filling pressure was divided into normal ( 〈 8), borderline (8-15) and increased (≥15). Outcomes of interest were recurrent stroke, coronary artery disease, and vascular, and all-cause death. We used Cox regression multivariable analyses adjusted by confounding factors. Results: A total of 1952 patients were finally included. Over a mean follow-up of 1.72±1.31 years, 140 patients had recurrent stroke, 36 had coronary artery disease, and of 236 fatalities, 33 died of a vascular cause. Multivariable analyses demonstrated that severe LV systolic dysfunction was associated with a higher risk of coronary artery disease (hazard ratio [HR] 3.80, 95% confidence interval [CI] 1.53-9.41), vascular death (HR 3.59, 95% CI 1.42-9.10) and all-cause death (HR 2.29, 95% CI 1.47-3.56). Conclusions: LV ejection fraction could be important predictor for long-term outcomes in AF-related stroke.
    Type of Medium: Online Resource
    ISSN: 0039-2499 , 1524-4628
    RVK:
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2019
    detail.hit.zdb_id: 1467823-8
    Location Call Number Limitation Availability
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