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

Stroke ◽  
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.

Abstract 204: Echocardiographic Evidence for Systemic Atherosclerosis, Atrial Fibrillation, and Long-Term Prognosis in Stroke Patients

2016 ◽  
Vol 9 (suppl_2) ◽  
Author(s):  
Justin Pieper ◽  
Michael Ashamalla ◽  
Neil Yager ◽  
Daniel Sedhom ◽  
Khetan Gate ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Hemorrhagic Stroke ◽  
Normal Sinus Rhythm ◽  
Medical Center ◽  
Academic Medical Center ◽  
Stroke Patients ◽  
Long Term Prognosis ◽  
Echocardiographic Evidence

Background: Echocardiography is routinely performed for evaluation of cardiac embolic causes in stroke patients. We sought to examine the association of echocardiographic evidence of atherosclerosis with atrial fibrillation and long-term outcomes. Materials and methods: Retrospective chart review was performed in 756 consecutive patients treated for non-hemorrhagic stroke at a single academic medical center. Transthoracic echocardiograms were reviewed for presence of mitral annular calcifications, aortic valve sclerosis, or aortic atherosclerosis. Admission ECG and telemetry recordings were evaluated for documented dysrhythmias. Mean follow up length was 46+/- 20 months. Results: A significant number (57.7%) of patients with non-hemorrhagic stroke diagnosed with atrial fibrillation had evidence of cardiac and systemic atherosclerosis on transthoracic echocardiogram, which was less likely in patients with normal sinus rhythm (35.4%) or non-sinus non-atrial fibrillation rhythms (37.1%, p<0.05). Findings of cardiac and systemic atherosclerosis were more common in older patients (75+/- 11 vs 60+/- 16 years old, p<.001), with lower BMI (27.4+/- 6.0 vs. 29+/- 6.5, p<.001), and hypertension (71.9% vs. 59.2 %, p=.002). Patients with findings of cardiac and systemic atherosclerosis were more likely to die during follow-up (56.1% vs. 43.9%, p<.001). Conclusion: In patients with non-hemorrhagic stroke, cardiac and systemic evidence of atherosclerosis was strongly associated with atrial fibrillation and portended poor long-term prognosis. In stroke patients with cardiac and systemic evidence of atherosclerosis and rhythms other than atrial fibrillation, extended ECG monitoring may be warranted.

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 ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Ischemic Stroke ◽  
Warfarin Therapy ◽  
Stroke Severity ◽  
Stroke Survivors ◽  
Stroke Patients ◽  
Long Term Outcomes ◽  
Warfarin Treatment

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.

Abstract 1910: Hyperperfusion in Acute Ischemic Stroke: Serial Arterial Spin-Labeled MRI of Reperfusion and Hemorrhagic Transformation

Stroke ◽  
2012 ◽  
Vol 43 (suppl_1) ◽  
Author(s):  
David S Liebeskind ◽  
Danny J Wang ◽  
Nerses Sanossian ◽  
Albert K Fong ◽  
Qing Hao ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Ischemic Stroke ◽  
Acute Ischemic Stroke ◽  
Hemorrhagic Transformation ◽  
Consecutive Series ◽  
Imaging Features ◽  
Stroke Patients ◽  
Clinical Correlates ◽  
Scan Time

Background: Arterial spin-labeled (ASL) MRI facilitates repeated noninvasive evaluation of cerebral blood flow without the use of contrast. Hyperperfusion may be readily detected with ASL and serial imaging may therefore chronicle the dynamics of territorial perfusion from acute to chronic phases after stroke. We characterized hyperperfusion on ASL in a prospective series of acute ischemic stroke patients, describing the clinical correlates, time course and association with reperfusion hemorrhage. Methods: A consecutive series of acute ischemic stroke patients admitted during a 1-year period were evaluated with pseudo-continuous ASL with background suppressed 3D GRASE (delay=2s, matrix=64x64; 26 slices, resolution 3.4x3.4x5mm, scan time 4min). Post-processed ASL CBF maps were visually inspected for detection of hyperperfusion. DSA measures of collaterals and reperfusion were scored when available and hemorrhagic transformation (HT) was graded on GRE in all 198 cases. Univariate and multivariate statistical analyses delineated clinical correlates, timing and other imaging features of hyperperfusion. Results: Among 198 patients, mean age was 69.4±15.7 years and 48.5% were women. Among 77 with serial ASL MRI, interval from initial to follow-up MRI was median 25.0 (IQR 10.3-53.9) hours. Hyperperfusion was detected in 15/198 (7.6%) patients at baseline and 30/77 (39.0%) at follow-up. Trajectories included 7/77 (9.1%) with hyperperfusion at both baseline and follow-up and 38/77 (49.4%) showing hyperperfusion at any timepoint during admission. Hyperperfusion correlated with achievement of reperfusion among patients undergoing endovascular therapy (OR 6.5, 95% CI 1.82-23.25, p=0.018) and history of atrial fibrillation (OR 4.4, 95% CI 1.9-10.6, p<0.001). Analysis of the 42 cases with DSA revealed that hyperperfusion was most common in patients with poor collateral grade followed by more complete TICI reperfusion scores. Overall, HT affected 57/198 (28.8%), including 35/198 (17.7%) HI1, 11/198 (5.6%) HI2, 8/198 (4.1%) PH1 and 3/198 (1.5%) PH2. Multivariate analyses revealed that hyperperfusion at any timepoint was a potent predictor of HT (OR 52.6, 95%CI 12.4-222.6, p<0.001). Conclusions: Hyperperfusion in acute ischemic stroke is frequently demonstrated by ASL MRI, providing novel insight on the dynamics of reperfusion and HT. Hyperperfusion increases the risk of HT 50-fold, likely due to autoregulatory loss. Poor collaterals and sudden reperfusion in vulnerable cases such as those with atrial fibrillation may herald hyperperfusion and HT.

scholarly journals 99 New onset atrial fibrillation in STEMI patients: main prognostic factors and clinical outcome

2021 ◽  
Vol 23 (Supplement_G) ◽  
Author(s):  
Beatrice Dal Zotto ◽  
Lucia Barbieri ◽  
Gabriele Tumminello ◽  
Massimo Saviano ◽  
Domitilla Gentile ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Hospital Mortality ◽  
Independent Predictor ◽  
Left Ventricular ◽  
Left Ventricular Ejection ◽  
Short And Long Term ◽  
Long Term Mortality ◽  
New Onset

Abstract The treatment of patients with known atrial fibrillation (AF) undergoing percutaneous coronary intervention has clear indications in the actual guidelines. Remarkable lack of evidence regarding new-onset AF (NOAF) in particular during STEMI is the reason for this study. We retrospectively analysed 1455 consecutive STEMI patients. The primary outcomes are in-hospital, 1-year and long-term follow-up mortality. Cerebral ischaemic events and major bleedings were considered clinical endpoints at 1 year. NOAF was detected in 102 subjects, 62.7% males, mean age 74.8 ± 10.6 years. Mean left ventricular ejection fraction (LVEF) was 43.5 ± 12.1% and left atrial enlargement (58 ± 20.9 ml) was observed. Anterior STEMI accounted for the majority (46%). NOAF has been predominantly recorded in the acute phase (mean duration of 8.1 ± 12.5 h). CHA2DS2-VASc score &gt;2 was recorded in 83% of cases, while HAS-BLED score of 2 or 3 was the most represented. All patients acutely received enoxaparin, but only 21.6% were discharged on oral anticoagulation (OAC). In-hospital mortality was 14.2%, while 1-year and long-term mortality were 17.2% and 32.1%, respectively. We identified age as an independent predictor of short- and long-term mortality, while LVEF was the only other independent predictor for in-hospital mortality and arrhythmia duration for 1-year mortality. After 1-year of follow-up we recorded three ischaemic events and no major bleeding. In conclusion, STEMI patients who present NOAF are a very high-risk population with increased short- and long-term mortality. Our data suggest that the indication for OAC should be always driven by CHA2DS2-VASC and HAS-BLEED score, even in patients with a single episode indeed. 99 Figure 1Kaplan-Meier curve representing the long-term survival of the entire population from hospital admission up to the maximum follow-up time was performed

scholarly journals Atrial Fibrillation-Associated Ischemic Stroke Patients With Prior Anticoagulation Have Higher Risk for Recurrent Stroke

Stroke ◽  
2020 ◽  
Vol 51 (4) ◽  
pp. 1150-1157
Author(s):  
Kanta Tanaka ◽  
Masatoshi Koga ◽  
Keon-Joo Lee ◽  
Beom Joon Kim ◽  
Eun Lyeong Park ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Risk Factor ◽  
Ischemic Stroke ◽  
Clinical Research ◽  
Hemorrhagic Stroke ◽  
Research Collaboration ◽  
Recurrent Stroke ◽  
Acute Management ◽  
Stroke Patients

Background and Purpose— Ischemic stroke associated with nonvalvular atrial fibrillation (NVAF) despite prior anticoagulation may indicate underlying problems that nullify the stroke-preventing effects of oral anticoagulants. We aimed to evaluate the risk for recurrent stroke in patients with NVAF with prior anticoagulation, compared with that in patients without prior anticoagulation. Methods— This study comprised pooled individual patient data on NVAF-associated acute ischemic stroke or transient ischemic attack from 2011 to 2014 arising from the Clinical Research Collaboration for Stroke in Korea (15 South Korean stroke centers) and the Stroke Acute Management With Urgent Risk-Factor Assessment and Improvement-NVAF registry (18 Japanese stroke centers). Data on 4841 eligible patients from the Clinical Research Collaboration for Stroke in Korea registry were pooled with data on all patients (n=1192) in the Stroke Acute Management with Urgent Risk-factor Assessment and Improvement-NVAF registry. The primary outcome was recurrent ischemic stroke. The secondary outcomes were hemorrhagic stroke and all-cause death. Outcome events were captured up to 1 year after the index event. Results— Among the 6033 patients in the full cohort, 5645 patients were analyzed, of whom 1129 patients (20.0%) had received prior anticoagulation. Median age was 75 years (interquartile range, 69–81 years), and 2649 patients (46.9%) were women. Follow-up data of 4617 patient-years (median follow-up 365 days, interquartile range 335–365 days) were available. The cumulative incidence of recurrent ischemic stroke in patients with prior anticoagulation was 5.3% (60/1129), compared with the 2.9% (130/4516) incidence in patients without prior anticoagulation. The risk for recurrent ischemic stroke was higher in patients with prior anticoagulation than in those without (multivariable Cox shared-frailty model, hazard ratio 1.50 [95% CI, 1.02–2.21]). No significant differences in the risks for hemorrhagic stroke and mortality were seen between the 2 groups. Conclusions— The risk for recurrent ischemic stroke may be higher in NVAF-associated stroke patients with prior anticoagulation than in those without prior anticoagulation. Registration— URL: https://www.clinicaltrials.gov ; Unique identifier: NCT01581502.

scholarly journals The Age Factor Influencing Long Term Physical Functionality in Stroke Patients Undergoing Intra-arterial Thrombectomy Treatment

2020 ◽  
Author(s):  
Henry Horng-Shing Lu ◽  
Chi-Ling Kao ◽  
Chih-Ming Lin ◽  
Shu-Wei Chang ◽  
Chi-Kuang Liu ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Acute Ischemic Stroke ◽  
Barthel Index ◽  
Intravenous Thrombolysis ◽  
Stroke Patients ◽  
Efficient Treatment ◽  
Age Factor ◽  
One Year

Abstract Background The treatment of acute ischemic stroke is heavily time-dependent, and even though, with the most efficient treatment, the long-term functional outcome is still highly variable. In this current study, the authors selected acute ischemic stroke patients who were qualified for intravenous thrombolysis with recombinant tissue plasminogen activator and followed by intra-arterial thrombectomy. With primary outcome defined by the functional level in a one-year follow-up, we hypothesize that patients with older age are at a disadvantage in post-stroke recovery. However, an age-threshold should be determined to help clinicians in selection of patients to undergo such therapy. Methods This is a retrospective chart review study that include 92 stroke patients in Changhua Christian hospital with a total of 68 evaluation indexes recorded. The current study utilized the forward stepwise regression model whose Adj-R2 and p-value in search of important variables for outcome prediction. The chngpt package in R indicated the threshold point of the age factor directing the better future functionality of the stroke patients. Results Datasets revealed the threshold of the age set at 79 the most appropriate. Admission Barthel Index, Age, Ipsi ICA RI, Ipsi VA PI, Contra MCA stenosis, Contra ECA RI, and in-hospital pneumonia are the significant predicting variables. The higher the age, in-hospital pneumonia, Contra MCA stenosis, Ipsi ICA RI and Ipsi VA PI, the less likely patient to recover from functional deficits as the result of acute ischemic stroke; the higher the value of Contra ECA RI and Admission Barthel Index, the better chance to recover at one-year follow up. Conclusions Parameters of pre-intervention datasets could provide important information to aid first-line clinicians in decision making. Especially, in patients whose age is above seventy-nine receives diminish return in the benefit to undergo such intervention and should be considered seriously by both the patients and the physicians.

Abstract TP15: Long-term Magnetic Resonance Angiography Follow-up of Recanalized Vessels After Mechanical Clot Extraction

Stroke ◽  
2013 ◽  
Vol 44 (suppl_1) ◽  
Author(s):  
Yukiko Enomoto ◽  
Shinichi Yoshimura ◽  
Yusuke Egashira ◽  
Toru Iwama
Keyword(s):  
Ischemic Stroke ◽  
Magnetic Resonance ◽  
Magnetic Resonance Angiography ◽  
Endovascular Treatment ◽  
Acute Ischemic Stroke ◽  
Intravenous Thrombolysis ◽  
Stroke Patients ◽  
Extraction Device

Objectives: Endovascular treatment provides a therapeutic option for acute ischemic stroke patients who are ineligible for, or who do not respond to intravenous thrombolysis. Higher rates of recanalization by mechanical clot extraction device were reportedly associated with better clinical outcome, but the long-term patency of recanalized vessel is unknown. Methods: We retrospectively evaluated magnetic resonance angiography (MRA) at 24-hour and 3-month after the endovascular treatment in consecutive acute stroke patients who were treated with mechanical clot extraction device between Oct. 2010 and May 2012 in our institution. Results: Fourty-six patients received endovascular treatment for acute ischemic stroke and 35 were treated with mechanical clot extraction devices, Merci and/or Penumbra system, with or without adjunctive therapy. Mean age was 69±12 years, baseline median National Institutes of Health Stroke Scale score was 15 (8 to 24), and occluded vessels were the internal carotid artery in 34%, middle cerebral artery (MCA) in 54%, and vertebro-basilar artery in 11%. Successful recanalization, defined as Thrombolysis In Myocardial Infarction II or III perfusion, was obtained in 32 (91%) patients. During 24-hour after the treatment, reocclusion of the treated vessel was observed in 4 (12.5%) patients. Of 28 eligible patients, 21 (75%) patients had 3-month MRA follow-up. None of the patients had reocclusion, but clinically silent diffuse stenosis was observed in 2 (9.5%) patients. Statistically significant predictors were not identified, but both of the patients were MCA occlusion treated with Merci retriever. Conclusion: In this study, late stenosis was observed in the MCA on 3-month follow-up MRA. Long-term follow-up seems to be useful to follow the recanalized vessels, especialy when mechanical devices were used.

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