Abstract TP136: Dual versus Mono Antiplatelet Therapy in Acute Ischemic Stroke Patients Due to Large Artery Atherosclerosis

Stroke ◽  
2018 ◽  
Vol 49 (Suppl_1) ◽  
Author(s):  
Dohoung Kim ◽  
Jong-Moo Park ◽  
Yong-Jin Cho ◽  
Kyung Bok Lee ◽  
Tai Hwan Park ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Acute Ischemic Stroke ◽  
Antiplatelet Therapy ◽  
Large Artery ◽  
Stroke Patients ◽  
Dual Versus

D-dimers increase in acute ischemic stroke patients with the large artery occlusion, but do not depend on the time of artery recanalization

2009 ◽  
Vol 29 (4) ◽  
pp. 477-482 ◽  
Author(s):  
David Školoudík ◽  
Michal Bar ◽  
Daniel Šaňák ◽  
Petr Bardoň ◽  
Martin Roubec ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Acute Ischemic Stroke ◽  
Artery Occlusion ◽  
Large Artery ◽  
Stroke Patients

Abstract TP219: Hyperintense Vessels on FLAIR MRI Suggest Dissection and Large-Artery Atherosclerosis but Do Not Predict Outcome in Acute Posterior Circulation Infarct

Stroke ◽  
2020 ◽  
Vol 51 (Suppl_1) ◽  
Author(s):  
Maki Takahashi ◽  
Takeo Sato ◽  
Takahiro Maku ◽  
Haruhiko Motegi ◽  
Hiroki Takatsu ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Acute Ischemic Stroke ◽  
Posterior Circulation ◽  
Unfavorable Outcome ◽  
Artery Dissection ◽  
Large Artery ◽  
Intracranial Artery ◽  
Stroke Patients ◽  
Intracranial Artery Dissection ◽  
Posterior Circulation Infarct

Background and Purpose: Hyperintense vessel sign on FLAIR (HVS) has been described in hyperacute stroke patients with arterial occlusion. It’s a surrogate marker for stroke severity in patients with acute ischemic stroke of the anterior circulation. We aimed to reveal the clinical significance of HVS in patients with acute posterior circulation infarction. Methods: This observational study is based on a single-center prospective registry study. Inclusion criteria were: symptomatic ischemic stroke patients who have lesions only in posterior circulation; and taken initial MRI within 14 days from onset.An unfavorable outcome was defined as mRS score of 2 to 6 at 3 months from the onset. First investigation is to estimate whether HVS could be related to the subtype of acute ischemic stroke (cohort A). Second, the correlation between HVS and mRS at 3 months was evaluated (cohort B). Results: From October 2012 to May 2019, consecutive 1,079 ischemic stroke subjects were screened, including 277 in cohort A (191 male, median age 64 years) and 240 in cohort B (165 male, median age 66 years, Figure A). In cohort A, HVS was independently associated with intracranial artery dissection (OR 5.228; 95% CI 2.270-12.039; p = 0.001) and large-artery atherosclerosis (OR 3.582; 95% CI 1.244-10.317; p = 0.018, Figure B). In cohort B, HVS was not a factor independently associated with unfavorable outcome (OR 2.925; 95% CI 0.881-9.714; p = 0.080). Conclusions: HVS in patients with posterior circulation infarct suggests intracranial artery dissection or large-artery atherosclerosis, but does not have impact on their clinical courses.

scholarly journals Impact of Diabetes on Platelet Function in Acute Ischemic Stroke Patients Taking Dual Antiplatelet Therapy

2021 ◽  
Vol 12 ◽  
Author(s):  
Yinping Guo ◽  
Yi Zhang ◽  
Jing Zhao ◽  
Lingshan Wu ◽  
Zhiyuan Yu ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Acute Ischemic Stroke ◽  
Antiplatelet Therapy ◽  
Platelet Function ◽  
Dual Antiplatelet Therapy ◽  
Platelet Reactivity ◽  
Significant Risk ◽  
Maximum Amplitude ◽  
Stroke Patients ◽  
Clot Strength

Objectives: Diabetes mellitus (DM) is a significant risk factor for ischemic stroke and associated with platelet reactivity. We aim to evaluate the effect of DM on platelet function in acute ischemic stroke patients taking dual antiplatelet therapy (DAPT).Methods: We consecutively included patients with acute ischemic stroke taking DAPT. Platelet function was assessed by thromboelastography and the arachidonic acid (AA) or adenosine diphosphate (ADP) induced platelet inhibition rate were used to confirmed the high-residual on-treatment platelet reactivity (HRPR) to aspirin or clopidogrel. We classified patients into DM and non-DM groups. The association between DM and platelet function was assessed and the confounding factors were adjusted by propensity score matching (PSM) analysis. The independent risk factors of HRPR were determined by multivariate logistic regression analysis.Results: A total of 1,071 acute ischemic stroke patients, 712 in the non-DM group and 359 in the DM group, were included. Patients with DM had a significantly higher maximum amplitude (63.0 vs. 62.0 mm, P < 0.01), ADP-induced clot strength (34.6 vs. 30.3 mm, P < 0.01) and clopidogrel HRPR rate (22.6% vs. 17.3%, P = 0.038) than those without DM. Among 662 patients after PSM, the maximum amplitude (63.1 vs. 62.5 mm, P = 0.032), ADP-induced clot strength (34.6 vs. 29.3 mm, P < 0.01) and clopidogrel HRPR rate (23.0% vs. 15.7%, P = 0.018) is still higher in the DM group. DM was an independent factor of clopidogrel HRPR (OR = 1.48, 95% CI: 1.03–2.07, P < 0.05).Conclusions: In acute ischemic stroke patients taking DAPT, DM is associated with increased platelet reactivity and higher prevalence of clopidogrel HRPR.

Abstract WP255: Can Normal Electrocardiogram Rule Out Newly Diagnosed Atrial Fibrillation in Ischemic Stroke Patients

Stroke ◽  
2020 ◽  
Vol 51 (Suppl_1) ◽  
Author(s):  
Joshua Santucci ◽  
Takashi Shimoyama ◽  
Ken Uchino
Keyword(s):  
Atrial Fibrillation ◽  
Ischemic Stroke ◽  
Acute Ischemic Stroke ◽  
Cryptogenic Stroke ◽  
Cardiac Monitoring ◽  
Large Artery ◽  
Newly Diagnosed ◽  
Stroke Patients ◽  
Stroke Subtype ◽  
History Of

Introduction: Electrocardiogram (ECG) findings of premature atrial contraction and prolonged PR interval are associated with risk of onset atrial fibrillation (AF) in cryptogenic stroke. We sought to see if normal ECG and AF incidence is incompletely understood. Methods: From a prospective single-hospital stroke registry from 2018, we identified ischemic stroke patients who had ECG done on admission for review. We excluded patients with AF on admission ECG, history of AF, and implanted device with cardiac monitoring capability. Normal ECG was interpreted based on the standardized reporting guidelines for ECG studies evaluating risk stratification of emergency department patients. Stroke subtype was diagnosed according to the TOAST classification: large artery atherosclerosis (LAA), small vessel occlusion (SVO), cardioembolism, others/undetermined and embolic stoke of undetermined source (ESUS) criteria. We compared the incidence of newly diagnosed AF during hospitalization and from outpatient cardiac event monitoring between normal and abnormal ECG. Results: Of the 558 consecutive acute ischemic stroke patients, we excluded 135 with AF on admission ECG or history of AF and 9 with implanted devices. Of the remaining 414 patients that were included in the study, ESUS (31.2%) was the most frequent stroke subtype, followed by LAA (30.0%), SVO (14.0%), others/undetermined (15.7%), and cardioembolism (9.2%). Normal ECG was observed in 125 patients (30.2%). Cardioembolic subtype was less frequent in the normal versus abnormal ECG group (1.6% vs. 12.5%, p<0.001). New AF was detected in 17/414 patients (4.1%) during hospitalization. Of these 17 patients, none had normal ECG (0/125) and all had abnormal ECG (17/289, 5.9%) (p=0.002). After discharge, of 111 patients undergoing 4-week outpatient cardiac monitoring, new AF was detected in 16 (14.4%). Of these 16 patients, only 1 had a normal ECG (1/35, 2.9%) while 15 had abnormal ECG (15/76, 19.7%) (p=0.02). Conclusions: Normal ECG at admission for acute ischemic stroke is associated with low likelihood of detection of new atrial fibrillation in either the inpatient or outpatient setting.

Abstract W P193: Clinical Usefulness of Contrast-Enhancement Cardiac Magnetic Resonance on Detecting Left Ventricular Thrombus in Acute Ischemic Stroke

Stroke ◽  
2015 ◽  
Vol 46 (suppl_1) ◽  
Author(s):  
Junji Takasugi ◽  
Hiroshi Yamagami ◽  
Teruo Noguchi ◽  
Yoshiaki Morita ◽  
Tomotaka Tanaka ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Cardiac Magnetic Resonance ◽  
Magnetic Resonance ◽  
Acute Ischemic Stroke ◽  
Contrast Enhancement ◽  
Left Ventricular ◽  
Inferior Wall ◽  
Large Artery ◽  
Stroke Patients ◽  
Lv Dysfunction

Objective: Although anticoagulants are recommended in patients with left ventricular (LV) thrombi following myocardial infarction (MI) or LV dysfunction for preventing ischemic stroke, it remains unknown what imaging modality is useful. We sought to detect LV thrombi in acute ischemic stroke patients using contrast-enhancement cardiac magnetic resonance (CE-CMR). Methods: Between February and July 2014, 232 consecutive patients with acute ischemic stroke were admitted to our stroke center within 48 hours after the onset. Among them, patients with a prior MI or systolic LV dysfunction (LV ejection fraction [LVEF] <50%) were prospectively enrolled. CE-CMR and conventional transthoracic echocardiography (TTE) were performed within 7 days from admission. Clinical characteristics and parameters of CE-CMR were analyzed to predict LV thrombus. Results: Twenty-two patients (18 men, 74±12 years old) were enrolled. They consisted of 14 (64%) patients with a prior MI and 8 (36%) patients with LV dysfunction. Two (9%) patients had been treated with anticoagulants before the onset of stroke. The stroke subtypes were classified as follows; cardioembolism in 16 (73%), large-artery atherosclerosis in 3 (14%), small-vessel occlusion in 1 (4%), and others in 2 (9%). LV thrombus was identified in 4 patients (18%) by CE-CMR, whereas only 1 patient was detected by TTE. The locations of LV thrombi were apex (n=2), inferior wall (n=1), and lateral wall (n=1), respectively. Patients with LV thrombus had significantly larger LV end-diastolic (275±89 vs. 182±55ml, p = 0.011) and end-systolic volumes (229±88 vs. 114± 52ml, p = 0.009), and lower LVEF (18±6 vs. 40±11%, p = 0.006) than those without. Conclusion: In acute ischemic stroke patients with prior MI or LV dysfunction, CE-CMR was a useful tool for detecting LV thrombus in comparison with TTE. CE-CMR could identify the patients who need anticoagulant therapy.

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