Abstract WP246: Characteristic of Ischemic Stroke Prior Taking Direct Oral Anticoagulant versus Warfarin Treatment: Results From the PASTA Registry

Stroke ◽  
2020 ◽  
Vol 51 (Suppl_1) ◽  
Author(s):  
Satoshi Suda ◽  
Yasuyuki Iguchi ◽  
Shigeru Fujimoto ◽  
Yoshiki Yagita ◽  
Takayuki Mizunari ◽  
...  

Background and Purpose: The characteristics of patients with stroke prior receiving direct oral anticoagulant (DOAC) have not been fully clarified. We planned to recruit patients prospectively and to investigate the characteristics and outcomes in stroke patients taking DOAC and warfarin treatment prior to the event. Methods: The prospective analysis of stroke patients taking anticoagulants (PASTA) registry study is an observational, multicenter, prospective registry of stroke patients receiving OAC. Patient enrollment started in April 2016 at 25 tertiary centers across Japan. We compared clinical characteristics and discharge modified Rankin Scale (mRS) between DOAC-and warfarin-treatment in patients with atrial fibrillation (AF). Results: A total of 580 patients (231 women; median age 80 [quartiles 73-84] years) were analyzed (Fig. A). Of these, 365 patients (63%) received prior DOAC treatment and the remaining 215 (37%) received prior warfarin treatment (Fig. B and C). There were significant differences in clinical characteristics and outcome between DOAC-and warfarin-treatment prior to the event regarding initial NIHSS score (median [quartiles]: DOAC, 4 [2-16] vs. warfarin, 9 [3-21]; P =0.0001), rate of medium-large size of infarct (DOAC, 202/340 [59%] versus warfarin, 152/203 [75%]; P =0.0003) and the proportion of patients with favorable outcome (mRS, 0-3: DOAC 218/354 [62%] vs. warfarin 108/212 [49%]; P =0.0036). Subclassification according to DOAC dosing revealed patients with low-dose (259/365; 71%) to be older and to have a higher NIHSS score compared with regular dose (low-dose, 5 [2-17] vs. regular-dose, 3 [1-11]; P =0.0023) (Fig. D). Type of DOAC agent did not result in relevant differences in clinical characteristics or outcome (Fig. E). Conclusions: Our results showed that patients with DOAC treatment before the event showed smaller infarct size, milder initial stroke severity, and favorable outcome compared to patients with warfarin.

Stroke ◽  
2020 ◽  
Vol 51 (Suppl_1) ◽  
Author(s):  
Satoshi Suda ◽  
Yasuyuki Iguchi ◽  
Shigeru Fujimoto ◽  
Yoshiki Yagita ◽  
Takayuki Mizunari ◽  
...  

Background and Purpose: The characteristics of direct oral anticoagulant (DOAC)-related intracerebral hemorrhage (ICH) have not been fully clarified. We planned to recruit patients prospectively and to investigate the characteristics and outcomes in patients with ICH receiving direct oral anticoagulant (DOAC) and warfarin treatment. Methods: The prospective analysis of stroke patients taking anticoagulants (PASTA) registry study is an observational, multicenter, prospective registry of stroke patients receiving OAC. Patient enrollment started in April 2016 at 25 tertiary centers across Japan. We compared imaging, clinical characteristics, and discharge modified Rankin Scale (mRS) between DOAC- and warfarin-related ICH patients with atrial fibrillation (AF). Results: A total of 154 patients (51 women; median age 77 [quartiles 69-87] years) were analyzed. Of these, 111 patients (72%) received prior DOAC treatment and the remaining 43 (28%) received prior warfarin treatment (Fig. A, B and C). There were no relevant differences in clinical and hematoma characteristics between DOAC- and warfarin-related ICH regarding baseline hematoma volume (median [quartiles]: DOAC, 11 [5-23] mL vs. warfarin, 12 [5-30] mL; P =0.95), rate of hematoma expansion (DOAC, 12/111 [11%] vs. warfarin, 4/43 [9%]; P =0.80), rate of subcortical hemorrhage (DOAC, 15/111 [11%] vs. warfarin, 10/43 [9%]; P =0.80) and the proportion of patients with unfavorable outcome (mRS, 4-6: DOAC 76/108 [70%] vs. warfarin 23/38 [61%]; P =0.26). Cerebral microbleeds (CMBs) were detected more frequently in DOAC group than in warfarin (47/76 [62%] vs. 11/32 [34%]; P <0.01). Subgroup analyses showed that type of DOAC agent did not result in relevant differences in imaging characteristics or outcome (Fig. D and E). Conclusions: Our results showed that there were no significant differences in hematoma characteristics and functional outcome among AF patients with DOAC- or warfarin-related ICH.


Stroke ◽  
2017 ◽  
Vol 48 (suppl_1) ◽  
Author(s):  
Ameer E Hassan ◽  
Jeffrey L Saver ◽  
Mayank Goyal ◽  
David S Liebeskind ◽  
Reza Jahan ◽  
...  

Background: Recent single center studies have suggested that “procedural time” independent of “time to procedure” can affect outcomes of acute ischemic stroke patients undergoing endovascular treatment (ET). We performed a pooled analysis from three ET trials to determine the effect of procedural time on angiographic and clinical outcomes. Objective: To determine the relationship between procedural time and clinical outcomes among acute ischemic stroke patients undergoing successful recanalization with ET. Methods: We analyzed data from SWIFT, STAR and SWIFT PRIME trials. Baseline demographic and clinical characteristics, NIHSS score on admission, intracranial hemorrhage rates and mRS at 3 months post procedure were analyzed. TICI scale was used to grade post procedure angiographic recanalization. Procedural time was defined by the time interval between groin puncture and recanalization. We estimated the procedural time after which favorable clinical outcome was unlikely even after recanalization (futile) after age and NIHSS score adjustment. Results: We analyzed 301 patients who underwent ET and had near complete or complete recanalization (TICI 2b or 3). The procedural time (±SD) was significantly shorter in patients who achieved a favorable outcome (mRS 0-2) compared with those who did not achieve favorable outcome (44±25 vs 51±33 minutes, p=0.04). Table 1. In the multivariate analysis (including all baseline characteristics with a p value <0.05 as independent variables), shorter procedural time was a significant predictor of lower odds of unfavorable outcome (OR 0.49, 95% CI 0.28, 0.85, p=0.012). The rates of favorable outcomes were significantly higher when the procedural time was <60 minutes compared with ≥60 minutes (62% vs 45%, p=0.020). Conclusion: Procedural time in patients undergoing mechanical thrombectomy for acute ischemic stroke is an important determinant of favorable outcomes in those with near complete or complete recanalization.


2020 ◽  
Vol 5 (4) ◽  
pp. 384-393
Author(s):  
Manuel Cappellari ◽  
David J Seiffge ◽  
Masatoshi Koga ◽  
Maurizio Paciaroni ◽  
Stefano Forlivesi ◽  
...  

Introduction It is unknown whether the type of treatment (direct oral anticoagulant versus vitamin K antagonist) and the time of treatment introduction (early versus late) may affect the functional outcome in stroke patients with atrial fibrillation. We aimed to develop and validate a nomogram model including direct oral anticoagulant/vitamin K antagonist and early/late oral anticoagulant introduction for predicting the probability of unfavourable outcome after stroke in atrial fibrillation-patients. Patients and Methods We conducted an individual patient data analysis of four prospective studies. Unfavourable functional outcome was defined as three-month modified Rankin Scale score 3 -6. To generate the nomogram, five independent predictors including age (<65 years, reference; 65--79; or 80), National Institutes of Health Stroke Scale score (0--5 points, reference; 6--15; 16--25; or >25), acute revascularisation treatments (yes, reference, or no), direct oral anticoagulant (reference) or vitamin K antagonist, and early (7 days, reference) or late (8--30) anticoagulant introduction entered into a final logistic regression model. The discriminative performance of the model was assessed by using the area under the receiver operating characteristic curve. Results A total of 2102 patients with complete data for generating the nomogram was randomly dichotomised into training ( n = 1553) and test ( n = 549) sets. The area under the receiver operating characteristic curve was 0.822 (95% confidence interval, CI: 0.800--0.844) in the training set and 0.803 (95% CI: 0.764--0.842) in the test set. The model was adequately calibrated (9.852; p = 0.276 for the Hosmer--Lemeshow test). Discussion and Conclusion Our nomogram is the first model including type of oral anticoagulant and time of treatment introduction to predict the probability of three-month unfavourable outcome in a large multicentre cohort of stroke patients with atrial fibrillation.


Blood ◽  
2006 ◽  
Vol 108 (11) ◽  
pp. 713-713 ◽  
Author(s):  
David G. Sherman ◽  
Gregory W. Albers ◽  
Christopher Bladin ◽  
Min Chen ◽  
Cesare Fieschi ◽  
...  

Abstract Background: Venous thromboembolism (VTE) prophylaxis with low-molecular-weight heparin (LMWH) or unfractionated heparin (UFH) is recommended in acute ischemic stroke patients, but most studies comparing LMWH and UFH are limited in methodology or sample size. The PREVAIL study was designed to assess the superiority of enoxaparin over UFH for VTE prophylaxis in acute ischemic stroke patients and to evaluate efficacy and safety according to stroke severity. Methods: Patients with acute ischemic stroke, confirmed by CT scan, and unable to walk unassisted due to motor impairment of the leg were enrolled in this prospective, open-label, parallel group, multicenter study. Patients from 15 countries were randomized within 48 h of stroke symptoms to receive enoxaparin 40 mg SC qd or UFH 5000 IU SC q12h for 10±4 days. Patients were stratified by NIH Stroke Scale score (NIHSS; severe ≥14, less severe &lt;14). The primary efficacy endpoint was the composite of symptomatic or asymptomatic deep-vein thrombosis (DVT), symptomatic pulmonary embolism (PE), or fatal PE during treatment. DVT was confirmed primarily by venography, or ultrasonography when venography was not practical. PE was confirmed by VQ or CT scan, or angiography. Primary safety endpoints included clinically significant intracranial and major extracranial bleeding. Results: 1762 acute ischemic stroke patients were randomized. Characteristics were similar between groups; mean age was 66.0±12.9 yrs, mean NIHSS score was 11.3. In the efficacy population, enoxaparin (n=666) and UFH (n=669) were given for a mean of 10.5±3.2 days. Enoxaparin resulted in a 43% relative reduction in the risk of the primary efficacy endpoint compared with UFH (10.2% vs 18.1%; RR 0.57; 95% CI 0.44–0.76; p=0.0001, adjusted for NIHSS score). Incidences of VTE events are shown in Table 1. Reductions in the primary endpoint remained significant in patients with a NIHSS score ≥14 (16.3% vs 29.7%, p=0.0036) and &lt;14 (8.3% vs 14.0%, p=0.0043). The composite of clinically significant intracranial and major extracranial bleeding was low and not significantly different between groups (Table 1). Conclusion: Enoxaparin 40 mg qd is superior to UFH q12h for reducing the risk of VTE in acute ischemic stroke patients, with no significant difference in clinically relevant bleeding. The reduction in VTE risk was consistent in patients with a NIHSS score ≥14 or &lt;14. Table 1: Incidence of VTE and bleeding Endpoint Enoxaparin n/N (%, 95% CI) UFH n/N (%, 95% CI) *P&lt;0.001 Symptomatic VTE 2/666 (0.3, 0.0–0.7) 6/669 (0.9, 0.2–1.6) Proximal DVT 30/666 (4.5, 2.9–6.1) 64/669 (9.6, 7.3–11.8)* Distal DVT 44/666 (6.6, 4.7–8.5) 85/669 (12.7, 10.2–15.2)* PE 1/666 (0.2, 0.0–0.4) 6/669 (0.9, 0.2–1.6) Composite of major extracranial and clinically significant intracranial bleeding 11/877 (1.3, 0.5–1.9) 6/872 (0.7, 0.1–1.2)


2021 ◽  
Vol 15 (6) ◽  
pp. 1335-1339
Author(s):  
E. U Haq ◽  
A. Qayyum ◽  
H. A. Qayyum ◽  
M. Anam ◽  
A. R. Khan ◽  
...  

Background: Stroke is a serious public health issue and third leading cause of death worldwide. Hypoalbuminemia is commonly found factor in patients of stroke and is also associated with severe disease as well as pro inflammatory patterns of serum protein electrophoresis. Therefore, further research for understanding the role of Hypoalbuminemia in stroke is important to devise strategies for better management of stroke. Aim : To determine the frequency of hypoalbuminemia in acute ischemic stroke patients based on stroke severity. Methods: This descriptive cross- sectional study was conducted in Shifa International hospital stroke unit for 6 months from May 15, 2018 till Nov 15, 2018. Data was collected from 100 patients using purposive sampling. After taking consent from patient or attendant, the demographic data was collected on a structured proforma. Baseline serum albumin and stroke severity using the NIHSS score was also assessed. All data was entered and analysed using SPSS 21. After descriptive analysis, post stratified Chi Square test was applied for gender and age categories. Results: The mean age of patients was 63.60 ± 11.87 years with 57(57%) male and 43(43%) female cases. The mean serum albumin level was 4.03 ± 0.94 with minimum and maximum values as 1.50 and 5.5. Among cases with minor, moderately severe and with severe stroke, 6(37.5%) cases, 18(25.7%) cases and 6(42.9%) cases had Hypoalbuminemia. The frequency of hypoalbuminemia was statistically same with respect to severity of stroke, p-value > 0.05. Conclusion: This study concludes that the frequency of hypoalbuminemia in acute ischemic stroke patients was diagnosed in almost one third cases, however, no statistical association could be found. Hence, screening for hypoalbuminemia should be done for better management of stroke patients. Keywords: Storke, NIHSS score, serum albumin, hypoalbuminemia, mortality


2021 ◽  
pp. 12-13
Author(s):  
Avtar Singh Dhanju ◽  
Thiyagu K ◽  
Ajay Chhabra ◽  
Pashaura Singh

Aim:The study was undertaken with the aim to establish the denite correlation between serum albumin levels and outcome of ischemic stroke. Methodology: The present observational study was conducted on 100 acute ischemic stroke patients meeting inclusion and exclusion criteria. All patients were investigated for hypoalbuminemia and their stroke severity was assessed by NIHSS score on day 1 and day 7. The relationship between admission albumin levels, NIHSS values and outcome of those patients was ascertained. Results: There was increased prevalence of hypoalbuminemia in AIS patients and there was signicant correlation between NIHSS score on day 1&7, mortality and hypoalbuminemia in AIS patients and there was signicant association between high NIHSS score and mortality in AIS patients. Conclusion: serum albumin is an independent predictor of functional outcome following an acute ischemic stroke and serum albumin level is inversely correlated with severity of stroke at presentation.


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