Abstract W MP106: Clinical Effectiveness of Anticoagulation with Warfarin among Ischemic Stroke Patients with Atrial Fibrillation: Findings from the Patient-Centered Research into Outcomes Stroke Patients Prefer and Effectiveness Research (PROSPER) Study

Stroke ◽  
2015 ◽  
Vol 46 (suppl_1) ◽  
Author(s):  
Ying Xian ◽  
Jingjing Wu ◽  
Emily C O’Brien ◽  
Gregg C Fonarow ◽  
DaiWai M Olson ◽  
...  

Background: Oral anticoagulation is recommended for ischemic stroke patients with atrial fibrillation, based on clinical trials done in selected populations. However, little is known about whether the clinical benefit of warfarin is preserved outside the clinical trial setting, especially in older patients with ischemic stroke. Methods: PROSPER, a PCORI-funded research program designed by stroke survivors and stakeholders, used American Heart Association Get With The Guidelines (GWTG)-Stroke data linked to Medicare claims to evaluate the association between warfarin treatment at discharge and long-term outcomes among ischemic stroke survivors with atrial fibrillation (AF) and no contraindication to or prior anticoagulation therapy. The primary outcome prioritized by patients was home-time (defined as days spent alive and not in inpatient post-acute care facility) within 2-year follow-up after discharge. Results: Of 12,552 ischemic stroke patients with AF admitted from 2009-2011, 11,039 (88%) received warfarin treatment at discharge. Compared with those not receiving any anticoagulation, warfarin-treated patients were slightly younger (mean 80 vs. 83, p<0.001), less likely to have a history of prior stroke or coronary artery disease, but had similar stroke severity as measured by NIHSS (median 5 [IQR 2-12] vs. 6 [2-13], p=0.09). After adjustment for all observed baseline characteristics using propensity score inverse probability weighting method, patients discharged on warfarin therapy had 45 more days of home-time during 2-year follow-up than those not receiving any oral anticoagulant (513 vs. 468 days, p<0.001). Warfarin use was also associated with a lower risk of all-cause mortality, cardiovascular readmission or death, and ischemic stroke (Table). Conclusions: Among ischemic stroke patients with atrial fibrillation, warfarin therapy was associated with improved long-term outcomes.

Stroke ◽  
2014 ◽  
Vol 45 (suppl_1) ◽  
Author(s):  
Tae-Jin Song ◽  
Jinkwon Kim ◽  
Dongbeom Song ◽  
Yong-Jae Kim ◽  
Hyo Suk Nam ◽  
...  

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.


Stroke ◽  
2018 ◽  
Vol 49 (Suppl_1) ◽  
Author(s):  
Hyungjong Park ◽  
Young Dae Kim ◽  
Ji Joe Heo ◽  
Hyo Suk Nam

2018 ◽  
Vol 28 (2) ◽  
pp. 1-6
Author(s):  
Achinta Kumar Mallick ◽  
Md Kafil Uddin ◽  
Md Ahmed Ali ◽  
Pijus Kumar Kundu ◽  
Sheikh Mohammad Emdadul Haque ◽  
...  

Atrial fibrillation (AF) is a common arrhythmia and a major risk factor for ischemic stroke, especially in the elderly. Patients with nonvalvular AF have a 5-fold excess risk of stroke. However, population-based data are scarce in patients who have experienced a first-ever ischemic stroke in the presence of AF regarding long-term risk of stroke recurrence and case-fatality rate. Aim of the study is to find out the outcome of ischemic stroke patients with Atrial Fibrillation. It was a descriptive type cross sectional study where 125 diagnosed cases of ischemic stroke were included. Presence of atrial fibrillation was detected by electrocardiogram. They were divided into two groups – those with atrial fibrillation and those without. Comparison was done between the two group in term of recurrence, mortality and clinical improvement. Atrial fibrillation was present in 22 (17.6%) of 125 patients with ischemic stroke. Those with AF were more frequently male, aged 45 years and older. The presence of AF was associated with high 3 months (Χ2 =4.562, df = 1, p<0.05) and 6 months mortality (Χ2 =7.868, df = 1, p<0.05), with a higher stroke recurrence rate within the first 6 months follow-up (22.7% versus 7.8% (<0.05)). At 3 months follow up clinical deterioration was noted in 9.1% patient with atrial fibrillation compared to 2.9% patients who had no arrhythmia(p<0.01) and at 6 months follow up clinical deterioration was noted in 18.2% patient with atrial fibrillation compared to 4.9% patients who had no arrhythmia(p<0.01). Ischemic stroke patients with atrial fibrillation had significant mortality within the study period compared to those without atrial fibrillation. Significant deterioration in clinical outcome was noted in atrial fibrillation group after six months. Recurrence was more in ischemic stroke patients with atrial fibrillation. Multivariate linear regression analysis shows atrial fibrillation as well as CKD, Diabetes mellitus and smoking as independent risk factor for recurrence. In conclusion, patients who had an ischemic stroke with accompanying atrial fibrillation had higher mortality, grave stroke severity, more recurrences and poorer functional status than those without atrial fibrillation.TAJ 2015; 28(2): 1-6


2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
D Lauritzen ◽  
H.J Vodstrup ◽  
T.D Christensen ◽  
M Onat ◽  
R Christensen ◽  
...  

Abstract Background Following catheter ablation for atrial fibrillation (AF), CHADS2 and CHA2DS2-VASc have utility in predicting long-term outcomes. However, it is currently unknown if the same holds for patients undergoing surgical ablation. Purpose To determine whether CHADS2 and CHA2DS2-VASc predict long-term outcomes after surgical ablation in concomitance with other cardiac surgery. Methods In this prospective, follow-up study, we included patients who underwent biatrial ablation - or pulmonary vein isolation procedure concomitantly with other cardiac surgery between 2004 and 2018. CHADS2 and CHA2DS2-VASc scores were assessed prior to surgery and categorized in groups as 0–1, 2–4 or ≥5. Outcomes were death, AF, and AF-related death. Follow-up was ended in April 2019. Results A total of 587 patients with a mean age of 68.7±0.4 years were included. Both CHADS2 and CHA2DS2-VASc scores were predictors of survival p=0.005 and p&lt;0.001, respectively (Figure). For CHADS2, mean survival times were 5.9±3.7 years for scores 0–1, 5.0±3.0 years for scores 2–4 and 4.3±2.6 years for scores ≥5. For CHA2DS2-VASc mean survival times were 7.3±4.0 years for scores 0–1, 5.6±2.9 years for scores 2–4 and 4.8±2.1 years for scores ≥5. The incidence of death was 20.1% for CHADS2 0–1, 24.8% for CHADS2 2–4, and 35.3% for CHADS2 ≥5, p=0.186. The incidence of AF was 50.2% for CHADS2 0–1, 47.9% for CHADS2 2–4, and 76.5% for CHADS2 ≥5, p=0.073. The incidence of AF related death was 13.0% for CHADS2 0–1, 16.8% for CHADS2 2–4, and 35.3% for CHADS2 ≥5, p=0.031. The incidence of death was 16.8% for CHA2DS2-VASc 0–1, 26.2% for CHA2DS2-VASc 2–4, and 45.0% for CHA2DS2-VASc ≥5, p=0.001. The incidence of AF was 49.6% for CHA2DS2-VASc 0–1, 52.5% for CHA2DS2-VASc 2–4, and 72.5% for CHA2DS2-VASc ≥5, p=0.035. The incidence of AF related death was 12.2% for CHA2DS2-VASc 0–1, 16.0% for CHA2DS2-VASc 2–4, and 42.5% for CHA2DS2-VASc ≥5, p&lt;0.001. Conclusion Both CHADS2 and CHA2DS2-VASc scores predict long-term outcomes after surgical ablation for AF. However, CHA2DS2-VASc was superior in predicting death, AF, and AF-related death. Survival curves Funding Acknowledgement Type of funding source: None


Author(s):  
Shinwan Kany ◽  
Johannes Brachmann ◽  
Thorsten Lewalter ◽  
Ibrahim Akin ◽  
Horst Sievert ◽  
...  

Abstract Background Non-paroxysmal (NPAF) forms of atrial fibrillation (AF) have been reported to be associated with an increased risk for systemic embolism or death. Methods Comparison of procedural details and long-term outcomes in patients (pts) with paroxysmal AF (PAF) against controls with NPAF in the prospective, multicentre observational registry of patients undergoing LAAC (LAARGE). Results A total of 638 pts (PAF 274 pts, NPAF 364 pts) were enrolled. In both groups, a history of PVI was rare (4.0% vs 1.6%, p = 0.066). The total CHA2DS2-VASc score was lower in the PAF group (4.4 ± 1.5 vs 4.6 ± 1.5, p = 0.033), while HAS-BLED score (3.8 ± 1.1 vs 3.9 ± 1.1, p = 0.40) was comparable. The rate of successful implantation was equally high (97.4% vs 97.8%, p = 0.77). In the three-month echo follow-up, LA thrombi (2.1% vs 7.3%, p = 0.12) and peridevice leak > 5 mm (0.0% vs 7.1%, p = 0.53) were numerically higher in the NPAF group. Overall, in-hospital complications occurred in 15.0% of the PAF cohort and 10.7% of the NPAF cohort (p = 0.12). In the one-year follow-up, unadjusted mortality (8.4% vs 14.0%, p = 0.039) and combined outcome of death, stroke and systemic embolism (8.8% vs 15.1%, p = 0.022) were significantly higher in the NPAF cohort. After adjusting for CHA2DS2-VASc and previous bleeding, NPAF was associated with increased death/stroke/systemic embolism (HR 1.67, 95% CI 1.02–2.72, p = 0.041). Conclusion Atrial fibrillation type did not impair periprocedural safety or in-hospital MACE patients undergoing LAAC. However, after one year, NPAF was associated with higher mortality. Graphic abstract


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Lisha Hou ◽  
Mier Li ◽  
Ju Wang ◽  
Yawen Li ◽  
Qianwen Zheng ◽  
...  

AbstractThe relationship between exercise and stroke recurrence is controversial. This study was designed to test whether an association exists between exercise and ischemic stroke recurrence in first-ever ischemic stroke survivors. Data were collected from January 2010 to June 2016. Baseline information was obtained during face-to-face interviews, and follow-up phone interviews were conducted every 3 months. Exercise type, frequency, intensity, and duration were recorded. Discrete-time survival analysis was used to determine the relationship between exercise and stroke recurrence. 760 first-ever ischemic stroke survivors who were able to exercise were enrolled. After adjusting for covariates, patients who exercised 3.5–7 h per week and more than 7 h per week had a lower relapse risk than patients who did not exercise (3.5–7: OR 0.415; > 7: OR 0.356). Moreover, if the fluctuation of exercise duration was over 4 h, the patients had a higher risk of stroke recurrence than those with variability of less than 2 h (OR 2.153, P = 0.013). Stroke survivors who engage in long-term regular mild exercise (more than 5 sessions per week and lasting on average 40 min per session) have a lower recurrence rate. Irregular exercise increases the risk of stroke recurrence.


KYAMC Journal ◽  
2018 ◽  
Vol 8 (2) ◽  
pp. 8-12
Author(s):  
Achinta Kumar Mallick ◽  
Md Ahmed Ali ◽  
Md Kafiluddin ◽  
Md Parvez Amin ◽  
Pijus Kumar Kundu ◽  
...  

Background: Atrial fibrillation (AF) is a common arrhythmia and a major risk factor for ischemic stroke, especially in the elderly patients. Patients with non-valvular AF have a 5-fold excess risk of stroke recurrence and case-fatality rate.Objectives: This study was to evaluate the prevalence of AF and its influence on prognosis in patients with ischemic stroke.Materials & Methods: Total 125 patients with ischaemic stroke were enrolled in this study. Initially they were divided into two groups by ECG - those with AF and those without AF. They were followed up after one month, three months and six months. Comparison was done between the two groups in term of recurrence, mortality and clinical improvement which were assessed by Modified Rankin Score (MRS).Results: Among 125 patients, 22 patients had AF. Those with AF were more frequently male, aged more than 45 years. Recurrence was significantly higher in AF group during one month follow up (p<0.05). The presence of AF was associated with higher mortality in 3 months (p<0.05) and 6 months (p<0.05) follow up. At 3 months follow up clinical deterioration was noted in 9.1% patient with AF compared to 2.9% patients without AF (p<0.01) and at 6 months follow up clinical deterioration was noted in 18.2% patient with AF compared to 4.9% patients without AF (p<0.01).Conclusion: Patients who had an ischemic stroke with accompanying AF had higher mortality, graver stroke severity, more recurrences and poorer functional status than those without AF.KYAMC Journal Vol. 8, No.-2, Jan 2018, Page 8-12


EP Europace ◽  
2021 ◽  
Vol 23 (Supplement_3) ◽  
Author(s):  
S Kany ◽  
J Brachmann ◽  
T Lewalter ◽  
I Akin ◽  
H Sievert ◽  
...  

Abstract Funding Acknowledgements Type of funding sources: Foundation. Main funding source(s): Stiftung für Herzinfarkforschung Background  Non-paroxysmal (NPAF) forms of atrial fibrillation (AF) have been reported to be associated with an increased risk for systemic embolism or death compared with paroxysmal AF (PAF). This study investigates the procedural safety and long-term outcomes of left atrial appendage closure (LAAC) in patients with different forms of AF. Methods  Comparison of procedural details and long-term outcomes in patients (pts) with PAF against controls with NPAF in the prospective, multicentre observational registry of patients undergoing LAAC in Germany (LAARGE).  Results  A total of 638 pts (PAF 274 pts, NPAF 364 pts) were enrolled. NPAF consisted of 31.6% patients with persistent AF and 68.4% with longstanding persistent AF or permanent AF. In both groups, a history of PVI was rare (4.0% vs 1.6%, p = 0.066). The PAF group had significantly less history of heart failure (19.0% vs 33.0%, p &lt; 0.001) while the current median LVEF was similar (60% vs 60%, p = 0.26). The total CHA2DS2-VASc score was lower in the PAF group (4.4 ± 1.5 vs 4.6 ± 1.5, p = 0.033), but no difference in the HAS-BLED score (3.8 ± 1.1 vs 3.9 ± 1.1, p = 0.40) was observed. The rate of successful implantation was equally high (97.4% vs 97.8%, p = 0.77) in both groups. In the three-month echo follow-up, device-related thrombi (2.1% vs 7.3%, p = 0.12) and peridevice leak &gt;5 mm (0.0% vs 7.1%, p= 0.53) were numerically higher in the NPAF group. Overall, in-hospital complications occurred in 15.0% of the PAF cohort and 10.7% of the NPAF cohort (p = 0.12). In the one-year follow-up, unadjusted mortality (8.4% vs 14.0%, p = 0.039) and combined outcome of death, stroke and systemic embolism (8.8% vs 15.1%, p = 0.022) were significantly higher in the NPAF cohort. After adjusting for CHA2DS2-VASc and previous bleeding, NPAF was associated with increased death/stroke/systemic embolism (HR 1.67, 95%-CI: 1.02-2.72). Conclusion  Atrial fibrillation type did not impair periprocedural safety or in-hospital MACE of patients undergoing LAAC. However, after one year, NPAF was associated with higher mortality and combined outcome of death, stroke and systemic embolism.


Author(s):  
Steven B Deitelzweig ◽  
Erin Buysman ◽  
Brett Pinsky ◽  
Michael Lacey ◽  
Yonghua Jing ◽  
...  

Introduction Warfarin discontinuation among real world nonvalvular atrial fibrillation (NVAF) patients is common. Hypothesis We hypothesized that in a managed care population, warfarin discontinuation is associated with increased stroke risk. Methods Patients who initiated warfarin therapy between Jan 2005 and Jun 2009 and had a healthcare claim related to AF within 30 days prior to the first warfarin claim, but no evidence of valvular disease, were included. Warfarin discontinuation was defined as a supply gap of >60 days without evidence of International Normalized Ratio (INR) measurements. Follow-up was divided into periods of warfarin treatment and discontinuation. Stroke events were identified based on claims for inpatient stays with a primary diagnosis for stroke or transient ischemic attack (TIA). Cox proportional hazards models were constructed to assess the relationship between warfarin discontinuation and incident stroke while adjusting for baseline demographics, stroke and bleeding risk, and comorbidities, as well as time-dependent antiplatelet use, stroke, and bleeding events in the prior warfarin treatment period. Results The mean (SD) age of the study sample (N=16,253) was 67±12 years; 64.8% was male. Mean CHADS2 score was 1.84±1.30; mean HAS-BLED score was 2.00±1.18. Half (51.4%) of patients discontinued warfarin therapy at least once and the overall sample had a mean of 1.87 warfarin treatment periods during a mean of 668 days follow-up. Approximately 1186 patients (7%) had a stroke or TIA at any site of service during follow-up. Risk of stroke significantly increased during warfarin discontinuation periods compared with therapy periods (HR 1.60; 95%CI 1.35-1.90; P<.0001). Stroke risk was significantly increased for patients with baseline CHADS2 score ≥2 (HR 2.69; 95%CI 1.44-5.03; P=.002), HAS-BLED score ≥3 (HR 1.46; 95%CI 1.05-2.05; P=.027), or who had a bleeding (HR 1.29; 95%CI 1.06-1.57; P=.013) or stroke event (HR 3.04; 95%CI 2.47-3.75; P<.0001) in the prior treatment period. Conclusions In the real world, over half of patients on anticoagulation therapy had treatment gaps or permanently discontinued therapy. These usage patterns, as well as prior bleeding, were associated with increased stroke risk.


Stroke ◽  
2020 ◽  
Vol 51 (Suppl_1) ◽  
Author(s):  
Angelina Gronberg ◽  
Ingrid Henriksson ◽  
Arne Lindgren

Background: Establishing aphasia prevalence and outcome after ischemic stroke can facilitate strategies for treatment of aphasia. Few studies of aphasia recovery after ischemic stroke have included consecutive, unselected patients. Our aim was to identify acute and chronic prevalence of aphasia in an unselected consecutive cohort of patients with ischemic stroke. Methods: 218 patients with first-ever acute ischemic stroke were included prospectively and consecutively in the Lund Stroke Register Study. Patients with 1) dementia or psychiatric disorders; 2) non-native Swedish language; or 3) decreased consciousness were not included. Language assessment was made at baseline (within 6 days, median 3 days) after stroke onset by trained research nurses using the NIHSS sub-item 9, “Best Language” to screen for aphasia. Patients with aphasia (score of 1-3 on NIHSS item 9) were re-assessed with NIHSS item 9 by speech and language pathologists at 1 month, 3 months and 12 months after stroke. Results: Of 218 first-ever ischemic stroke patients 52 patients (24%) had aphasia according to NIHSS item 9 (median age 75 years; n=25 female). The distribution of the scores 1-3 at baseline were n=32, n=11, and n=9, respectively. At the 1 year follow-up, 31 patients (67%; n=5 deceased, n=1 drop out) had recovered from aphasia (n=28 with initial NIHSS item 9 score of 1, n=2 with initial NIHSS item 9 score of 2), even though all patients with initial global aphasia (NIHSS item 9 score of 3) had remaining aphasia (NIHSS item 9 score ≥ 1). Figure 1shows aphasia recovery (n=52) according to NIHSS item 9. Conclusions: A majority of patients with mild aphasia recover substantially from aphasia within 1 year after stroke. Patients with initial global aphasia all suffer from remaining aphasia 1 year after stroke. This suggests that this population might especially benefit from an early onset comprehensive, long-term aphasia treatment plan.


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