20-YEARS AGE- AND SEX-SPECIFIC SECULAR TRENDS OF CHARACTERISTICS AND OUTCOMES OF ISCHEMIC STROKE PATIENTS WITH ATRIAL FIBRILLATION

Background The accurate knowledge of secular trends in prevalence, characteristics and outcomes of patients with ischemic stroke and atrial fibrillation allows better projections into the future. Aim We aimed to report the overall, age- and sex-specific secular trends of characteristics and outcomes of patients with acute ischemic stroke (AIS) and atrial fibrillation between 1993 and 2012 in the Athens Stroke Registry. Methods We used Joinpoint regression analysis to calculate the average annual percent changes and 95% confidence intervals. Results Among 3314 stroke patients, 1044 (31.5%) had atrial fibrillation. Between 1993 and 2012, there was an average annual reduction of 0.8% (95% CI: −1.5%; 0.0%) in the proportion of atrial fibrillation patients among all AIS patients, whereas the proportion of newly diagnosed atrial fibrillation patients among all atrial fibrillation patients increased annually by an average of 7.1% (95% CI: 5.4%;8.9%). Among all atrial fibrillation patients, there was an average annual reduction of 2.9% (95% CI: −2.7; −3.2%) in the proportion of previously known atrial fibrillation patients, followed by an annual average reduction of 2.4% (95% CI: −1.2; −3.6%) in the proportion of previously known atrial fibrillation patients not receiving any antithrombotic treatment at admission. During that period, there was an increase in the average annual proportion of previously known atrial fibrillation patients treated with anticoagulants (6.4%, 95% CI: 1.2;11.9%) and aspirin (2.3%, 95% CI: −0.4;5.0%) at admission; an average annual increase in the proportion of atrial fibrillation patients who were prescribed anticoagulant was apparent both for patients with mRS<4 (3.5%) and mRS: 4–5 (7.2%), while the proportion of atrial fibrillation patients who were prescribed aspirin or no antithrombotic at discharge was annually reduced (5.8% for mRS<4; 1.6% for mRS: 4–5 and 7.1% for mRS<4;5.3% for mRS: 4–5 respectively). Stroke recurrences were annually reduced by an average of 5.8% (95% CI: −8.6; −3.0%), along with cardiovascular events (6.5%, 95% CI: −8.3; −4.7%) and deaths (7.9%, 95% CI: −9.2; −6.5%). Conclusions Between 1993 and 2012, the proportion of atrial fibrillation patients on proper antithrombotic treatment and the rate of newly diagnosed atrial fibrillation increased significantly. Rates of stroke recurrence, cardiovascular events, and mortality reduced significantly.

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High Serum Alkaline Phosphatase Levels in Relation to Multi-Cerebral Microbleeds in Acute Ischemic Stroke Patients with Atrial Fibrillation and/or Rheumatic Heart Disease

Current Neurovascular Research ◽

10.2174/1567202613666160817095623 ◽

2016 ◽

Vol 13 (4) ◽

pp. 303-308 ◽

Cited By ~ 2

Author(s):

Junfeng Liu ◽

Deren Wang ◽

Jie Li ◽

Yao Xiong ◽

Bian Liu ◽

...

Keyword(s):

Atrial Fibrillation ◽

Alkaline Phosphatase ◽

Heart Disease ◽

Ischemic Stroke ◽

Acute Ischemic Stroke ◽

Rheumatic Heart Disease ◽

Serum Alkaline Phosphatase ◽

High Serum ◽

Stroke Patients ◽

Rheumatic Heart

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Resting Heart Rate and In-Hospital Mortality in Acute Ischemic Stroke Patients With and Without Atrial Fibrillation

Circulation Journal ◽

10.1253/circj.cj-19-0946 ◽

2020 ◽

Vol 84 (4) ◽

pp. 656-661

Author(s):

Qiao Han ◽

Chunyuan Zhang ◽

Shoujiang You ◽

Danni Zheng ◽

Chongke Zhong ◽

...

Keyword(s):

Atrial Fibrillation ◽

Heart Rate ◽

Ischemic Stroke ◽

Hospital Mortality ◽

Acute Ischemic Stroke ◽

Resting Heart Rate ◽

Stroke Patients

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Blood biomarkers to detect new-onset atrial fibrillation and cardioembolism in ischemic stroke patients

Heart Rhythm ◽

10.1016/j.hrthm.2021.01.032 ◽

2021 ◽

Author(s):

Dorin Harpaz ◽

Ram Bajpai ◽

Geelyn J.L. Ng ◽

Michael Soljak ◽

Robert S. Marks ◽

...

Keyword(s):

Atrial Fibrillation ◽

Ischemic Stroke ◽

Blood Biomarkers ◽

Stroke Patients ◽

Onset Atrial Fibrillation ◽

New Onset

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Abstract P683: Thrombin Generation in Plasma of Stroke Patients With Atrial Fibrillation

Stroke ◽

10.1161/str.52.suppl_1.p683 ◽

2021 ◽

Vol 52 (Suppl_1) ◽

Author(s):

Sarina Falcione ◽

Gina Sykes ◽

Joseph Kamtchum Tatuene ◽

Danielle Munsterman ◽

Twinkle Joy ◽

...

Keyword(s):

Atrial Fibrillation ◽

Ischemic Stroke ◽

Thrombin Generation ◽

Thrombus Formation ◽

Lag Time ◽

Thrombin Time ◽

Stroke Patients ◽

Time To Peak ◽

Generation Capacity

Background and Purpose: Thrombus formation is central to pathophysiology of stroke in patients with atrial fibrillation. Whether factors in plasma contribute to thrombus generation in patients with atrial fibrillation remains unclear. In this study we sought to determine whether plasma contributes to thrombin generation in patients with atrial fibrillation. Methods: There were 78 acute ischemic strokes with atrial fibrillation and 37 non-stroke controls. Plasma thrombin generation was measured by thrombin generation assay, resulting lag time, peak thrombin, time to peak and area under the curve was assessed. Thrombin generation capacity was compared in stroke patients with atrial fibrillation to non-stroke controls. The relationship to anticoagulation was assessed. In vitro, the effect of anticoagulation on plasma thrombin generation was determined. Results: Thrombin generation capacity was increased (shorter lag time and time to peak) in ischemic stroke patients with atrial fibrillation compared to non-stroke atrial-fibrillation controls (p<0.05 and p<0.01, respectively). Anticoagulation decreased plasma induced thrombin generation. Ischemic stroke patients with atrial fibrillation treated with anticoagulation (DOAC or warfarin) had lower plasma induced thrombin generation compared to atrial-fibrillation patients not on anticoagulation (p<0.05). Thrombin generation by plasma could be further reduced by DOAC in an in-vitro assay. Conclusions: Stroke patients with atrial fibrillation have a higher plasma induced thrombin generation compared to atrial fibrillation controls. Factors in plasma such as leukocyte derived tissue factor likely contribute to thrombus formation in patients with atrial fibrillation. As such, components in plasma may represent new targets to reduce thrombus formation and stroke risk in patients with atrial fibrillation.

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Abstract 176: Long Term Mortality in Acute Ischemic Stroke Patients with Nonvalvular Atrial Fibrillation According to Location and Burden of Cerebral Microbleeds

Stroke ◽

10.1161/str.45.suppl_1.176 ◽

2014 ◽

Vol 45 (suppl_1) ◽

Author(s):

Tae-Jin Song ◽

Jinkwon Kim ◽

Dongbeom Song ◽

Yong-Jae Kim ◽

Hyo Suk Nam ◽

...

Keyword(s):

Atrial Fibrillation ◽

Ischemic Stroke ◽

Acute Ischemic Stroke ◽

Hemorrhagic Stroke ◽

Independent Predictor ◽

Stroke Patients ◽

Risk Of Death ◽

Long Term Mortality

Background: Cerebral microbleeds (CMBs) were predictive of mortality in elderly and considered as a putative marker for risk of intracranial hemorrhage. Stroke patients with non valvular atrial fibrillation (NVAF) require anticoagulation, which increases the risk of hemorrhages. We investigated association of CMBs with the long term mortality in acute ischemic stroke patients with NVAF. Methods: During 6 years , consecutive ischemic stroke patients who had NVAF and who had undergone brain MRI with a gradient-recalled echo sequence were enrolled. Long-term mortality and causes of death were identified using data from Korean National Statistical Office. Survival analysis was performed whether the presence, number and location of CMBs were related with all causes, cardiovascular, and cerebrovascular mortality during follow-up. Results: Total 506 patients were enrolled during the study period and were followed up for median 2.5 years. CMBs were found in 30.8% of patients (156/506). Oral anticoagulation with warfarin was prescribed at discharge in 477 (82.7%) patients. During follow up, 177 (35%) patients died and cerebrovascular death was noted in 93 patients (81 ischemic stroke and 12 hemorrhagic stroke). After adjusting age, sex and significant variables in univariate analysis (p<0.1), multiple CMBs (≥5) were the independent predictor for all-cause, cardiovascular and ischemic stroke mortalities. The strictly lobar CMBs were associated with hemorrhagic stroke mortality in multivariate Cox regression analysis (HR 4.776, p=0.032) (Figure 1). Conclusions: Multiple CMBs were the independent predictor for the long term mortality in stroke patients with NVAF. Among them, patients with strictly lobar CMBs had a high risk of death due to hemorrhagic stroke. Our findings suggest that detection of CMBs in stroke patients with NVAF are of clinical relevance for predicting long term outcome and that particular concern is necessary in those with strictly lobar CMBs for their increased risk of death due to hemorrhagic stroke. Figure 1.

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Abstract WP226: Short Lasting Runs (<30 sec) of Atrial Fibrillation are More Commonly Observed in Ischemic Stroke Patients in Comparison to Controls

Stroke ◽

10.1161/str.47.suppl_1.wp226 ◽

2016 ◽

Vol 47 (suppl_1) ◽

Author(s):

Ethem Murat Arsava ◽

Ezgi Yetim ◽

Ugur Canpolat ◽

Necla Ozer ◽

Kudret Aytemir ◽

...

Keyword(s):

Atrial Fibrillation ◽

Ischemic Stroke ◽

Multivariate Analyses ◽

Holter Monitoring ◽

Female Gender ◽

Prior History ◽

Consecutive Series ◽

Stroke Patients ◽

Cross Sectional ◽

History Of

Background: The role of short-lasting (<30 sec) runs of atrial fibrillation (AF) in ischemic stroke pathophysiology is currently unknown. Although these non-sustained attacks are considered as a risk factor for future development of longer lasting, classical AF episodes, prior research has highlighted that associated clinical stroke features are not entirely similar between these two types of arrhythmias. In this study we determined the prevalence of short-lasting AF in stroke-free controls and compared it to a consecutive series of ischemic stroke patients. Methods: A total 235 controls, without any prior history stroke or AF, were evaluated with ECG and 24-hour Holter monitoring for the presence of <30-sec or ≥30-sec lasting AF episodes. The results were compared to a consecutive series of ischemic stroke patients without prior history of AF (n=456). Univariate and multivariate analyses were performed to determine demographic and cardiovascular factors related to <30-sec lasting AF and its association with ischemic stroke. Results: Expectedly, the frequency of newly diagnosed ≥30-sec lasting AF, detected either on ECG or Holter monitoring, was significantly higher in patients with ischemic stroke (18% vs. 2%; p<0.01). Non-sustained AF was positively related to old age (p<0.01), female gender (p=0.01) and hypertension (p<0.01) in univariate analyses. In multivariate analyses, after adjustment for demographic and cardiovascular risk factors, presence of non-sustained AF was significantly higher among both cryptogenic (OR 1.78; 95% CI 1.02-3.10) and non-cryptogenic (OR 1.84; 95% CI 1.15-2.94) stroke patients with respect to controls. Conclusion: Our study shows a higher prevalence of non-sustained AF episodes in ischemic stroke patients in comparison to controls. Whether this cross-sectional association translates into causality in terms of stroke pathophysiology will be the subject of future studies.

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Abstract 1122‐000214: Clinical Factors Associated rTPA Administration in Acute Ischemic Stroke Patients with History of Atrial Fibrillation

Stroke: Vascular and Interventional Neurology ◽

10.1161/svin.01.suppl_1.000214 ◽

2021 ◽

Vol 1 (S1) ◽

Author(s):

Chase A Rathfoot ◽

Camron Edressi ◽

Carolyn B Sanders ◽

Krista Knisely ◽

Nicolas Poupore ◽

...

Keyword(s):

Atrial Fibrillation ◽

Ischemic Stroke ◽

Acute Ischemic Stroke ◽

Medical History ◽

Clinical Decision Making ◽

Past Medical History ◽

Clinical Factors ◽

Stroke Patients ◽

Factors Associated ◽

History Of

Introduction : Previous research into the administration of rTPA therapy in acute ischemic stroke patients has largely focused on the general population, however the comorbid clinical factors held by stroke patients are important factors in clinical decision making. One such comorbid condition is Atrial Fibrillation. The purpose of this study is to determine the clinical factors associated with the administration of rtPA in Acute Ischemic Stroke (AIS) patients specifically with a past medical history of Atrial Fibrillation (AFib). Methods : The data for this analysis was collected at a regional stroke center from January 2010 to June 2016 in Greenville, SC. It was then analyzed retrospectively using a multivariate logistic regression to identify factors significantly associated with the inclusion or exclusion receiving rtPA therapy in the AIS/AFib patient population. This inclusion or exclusion is presented as an Odds Ratio and all data was analyzed using IBM SPSS. Results : A total of 158 patients with Atrial Fibrillation who had Acute Ischemic Strokes were identified. For the 158 patients, the clinical factors associated with receiving rtPA therapy were a Previous TIA event (OR = 12.155, 95% CI, 1.125‐131.294, P < 0.040), the administration of Antihypertensive medication before admission (OR = 7.157, 95% CI, 1.071‐47.837, P < 0.042), the administration of Diabetic medication before admission (OR = 13.058, 95% CI, 2.004‐85.105, P < 0.007), and serum LDL level (OR = 1.023, 95% CI, 1.004‐1.042, P < 0.16). Factors associated with not receiving rtPA therapy included a past medical history of Depression (OR = 0.012, 95% CI, 0.000‐0.401, P < 0.013) or Obesity (OR = 0.131, 95% CI, 0.034‐0.507, P < 0.003), Direct Admission to the Neurology Floor (OR = 0.179, 95% CI, 0.050‐0.639, P < 0.008), serum Lipid level (OR = 0.544, 95% CI, 0.381‐0.984, P < 0.044), and Diastolic Blood Pressure (OR = 0.896, 95% CI, 0.848‐0.946, P < 0.001). Conclusions : The results of this study demonstrate that there are significant associations between several clinical risk factors, patient lab values, and hospital admission factors in the administration of rTPA therapy to AIS patients with a past medical history of Atrial Fibrillation. Further research is recommended to determine the extent and reasoning behind of these associations as well as their impact on the clinical course for AIS/AFib patients.

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