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  • 1
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    Online Resource
    Anticoagulation After Stroke in Patients With Atrial Fibrillation : To Bridge or Not With Low-Molecular-Weight Heparin?
    Ovid Technologies (Wolters Kluwer Health) ; 2019
    In:  Stroke Vol. 50, No. 8 ( 2019-08), p. 2093-2100
    Details
    In: Stroke, Ovid Technologies (Wolters Kluwer Health), Vol. 50, No. 8 ( 2019-08), p. 2093-2100
    Abstract: Bridging therapy with low-molecular-weight heparin reportedly leads to a worse outcome for acute cardioembolic stroke patients because of a higher incidence of intracerebral bleeding. However, this practice is common in clinical settings. This observational study aimed to compare (1) the clinical profiles of patients receiving and not receiving bridging therapy, (2) overall group outcomes, and (3) outcomes according to the type of anticoagulant prescribed. Methods— We analyzed data of patients from the prospective RAF and RAF-NOACs studies. The primary outcome was defined as the composite of ischemic stroke, transient ischemic attack, systemic embolism, symptomatic cerebral bleeding, and major extracerebral bleeding observed at 90 days after the acute stroke. Results— Of 1810 patients who initiated oral anticoagulant therapy, 371 (20%) underwent bridging therapy with full-dose low-molecular-weight heparin. Older age and the presence of leukoaraiosis were inversely correlated with the use of bridging therapy. Forty-two bridged patients (11.3%) reached the combined outcome versus 72 (5.0%) of the nonbridged patients ( P =0.0001). At multivariable analysis, bridging therapy was associated with the composite end point (odds ratio, 2.3; 95% CI, 1.4–3.7; P 〈 0.0001), as well as ischemic (odds ratio, 2.2; 95% CI, 1.3–3.9; P =0.005) and hemorrhagic (odds ratio, 2.4; 95% CI, 1.2–4.9; P =0.01) end points separately. Conclusions— Our findings suggest that patients receiving low-molecular-weight heparin have a higher risk of early ischemic recurrence and hemorrhagic transformation compared with nonbridged patients.
    Type of Medium: Online Resource
    ISSN: 0039-2499 , 1524-4628
    URL: Article
    DOI: 10.1161/STROKEAHA.118.022856
    RVK:
    XA 10000
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2019
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  • 2
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    Risk Profile of Symptomatic Lacunar Stroke Versus Nonlobar Intracerebral Hemorrhage
    Ovid Technologies (Wolters Kluwer Health) ; 2016
    In:  Stroke Vol. 47, No. 8 ( 2016-08), p. 2141-2143
    Details
    In: Stroke, Ovid Technologies (Wolters Kluwer Health), Vol. 47, No. 8 ( 2016-08), p. 2141-2143
    Abstract: Although lacunar stroke (LS) and deep intracerebral hemorrhage (dICH) represent acute manifestations of the same pathological process involving cerebral small vessels (small vessel disease), it remains unclear what factors predispose to one phenotype rather than the other at individual level. Methods— Consecutive patients with either acute symptomatic LS or dICH were prospectively enrolled as part of a multicenter Italian study. We compared the risk factor profile of the 2 subgroups using multivariable logistic regression. Results— During a time course of 9.5 years, 1931 subjects (1434 LS and 497 dICH; mean age, 71.3±13.3 years; males, 55.5%) qualified for the analysis. Current smoking was associated with LS (odds ratio [OR], 2.17; P 〈 0.001). Conversely, dICH cases were more likely to be hypertensive (OR, 1.87; P 〈 0.001), excessive alcohol consumers (OR, 1.70; P =0.001), and more frequently under treatment with warfarin (OR, 2.05; P =0.010) and statins (OR, 3.10; P 〈 0.001). Hypercholesterolemia, diabetes mellitus, and antiplatelet treatment were not associated with a specific small vessel disease manifestation. Conclusions— The risk factor profile of dICH differs from that associated with LS. This might be used for disease risk stratification at individual level.
    Type of Medium: Online Resource
    ISSN: 0039-2499 , 1524-4628
    URL: Article
    DOI: 10.1161/STROKEAHA.116.013722
    RVK:
    XA 10000
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2016
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  • 3
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    Prediction of Early Recurrent Thromboembolic Event and Major Bleeding in Patients With Acute Stroke and Atrial Fibrillation by a Risk Stratification Schema : The ALESSA Score Study
    Ovid Technologies (Wolters Kluwer Health) ; 2017
    In:  Stroke Vol. 48, No. 3 ( 2017-03), p. 726-732
    Details
    In: Stroke, Ovid Technologies (Wolters Kluwer Health), Vol. 48, No. 3 ( 2017-03), p. 726-732
    Abstract: This study was designed to derive and validate a score to predict early ischemic events and major bleedings after an acute ischemic stroke in patients with atrial fibrillation. Methods— The derivation cohort consisted of 854 patients with acute ischemic stroke and atrial fibrillation included in prospective series between January 2012 and March 2014. Older age (hazard ratio 1.06 for each additional year; 95% confidence interval, 1.00–1.11) and severe atrial enlargement (hazard ratio, 2.05; 95% confidence interval, 1.08–2.87) were predictors for ischemic outcome events (stroke, transient ischemic attack, and systemic embolism) at 90 days from acute stroke. Small lesions (≤1.5 cm) were inversely correlated with both major bleeding (hazard ratio, 0.39; P =0.03) and ischemic outcome events (hazard ratio, 0.55; 95% confidence interval, 0.30–1.00). We assigned to age ≥80 years 2 points and between 70 and 79 years 1 point; ischemic index lesion 〉 1.5 cm, 1 point; severe atrial enlargement, 1 point (ALESSA score). A logistic regression with the receiver-operating characteristic graph procedure (C statistic) showed an area under the curve of 0.697 (0.632–0.763; P =0.0001) for ischemic outcome events and 0.585 (0.493–0.678; P =0.10) for major bleedings. Results— The validation cohort consisted of 994 patients included in prospective series between April 2014 and June 2016. Logistic regression with the receiver-operating characteristic graph procedure showed an area under the curve of 0.646 (0.529–0.763; P =0.009) for ischemic outcome events and 0.407 (0.275–0.540; P =0.14) for hemorrhagic outcome events. Conclusions— In acute stroke patients with atrial fibrillation, high ALESSA scores were associated with a high risk of ischemic events but not of major bleedings.
    Type of Medium: Online Resource
    ISSN: 0039-2499 , 1524-4628
    URL: Article
    DOI: 10.1161/STROKEAHA.116.015770
    RVK:
    XA 10000
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2017
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  • 4
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    Complications of Acute Stroke and the Occurrence of Early Seizures
    S. Karger AG ; 2013
    In:  Cerebrovascular Diseases Vol. 35, No. 5 ( 2013), p. 444-450
    Details
    In: Cerebrovascular Diseases, S. Karger AG, Vol. 35, No. 5 ( 2013), p. 444-450
    Abstract: 〈 b 〉 〈 i 〉 Background: 〈 /i 〉 〈 /b 〉 Seizures are common neurological consequences of stroke. Although a number of factors including stroke severity on admission, cortical involvement, and stroke subtype have been consistently associated with post-stroke seizures, the effect that medical and neurological complications of stroke, occurring in the very acute phase, might have on such a risk has never been adequately explored. In the present study we aimed at determining the extent to which complications within the first week of stroke influence the risk of early seizures (ES). 〈 b 〉 〈 i 〉 Methods: 〈 /i 〉 〈 /b 〉 Data of consecutive patients with first-ever acute stroke included in the Brescia Stroke Registry were analyzed. ES (≤7 days) were recorded and correlated with demographic data, disease characteristics, risk factors, and prespecified medical and neurological stroke complications in a multivariate path analysis model. 〈 b 〉 〈 i 〉 Results: 〈 /i 〉 〈 /b 〉 516 patients with first-ever acute stroke were eligible for inclusion in the present study. Of them, 436 patients had ischemic stroke (IS) [64 (14.6%) with hemorrhagic transformation (HT)] and 80 had intracerebral hemorrhage (ICH). Twenty patients (3.9%) developed ES. Patients with ES had a higher burden of complications compared with those without (30 vs. 4.2%, for patients with 〉 6 complications). Lesion type, stroke complications, and lesion site were directly related to the risk of seizure occurrence (OR, 0.24; 95% CI, 0.07-0.80 for IS vs. ICH; OR, 1.57; 95% CI, 1.21-2.01 for any increase of 1 in the number of complications; OR, 0.15; 95% CI, 0.04-0.56 for subcortical lesions vs. cortical lesions). Complications appeared also to mediate the indirect effect of lesion type on the occurrence of ES (OR, 0.75; 95% CI, 0.60-0.94). No significant difference on the risk of ES was observed when HT and ICH were compared. The total effect of lesion type was 0.25 × 0.75 = 0.18, corresponding to (1-0.18) = 82% lower risk of ES for IS as compared to ICH. 〈 b 〉 〈 i 〉 Conclusion: 〈 /i 〉 〈 /b 〉 Although major determinants of ES are nonmodifiable, preventable and treatable medical and neurologic complications within the first week of stroke increase the risk of ES and mediate the effect of established predictors on the propensity to post-stroke epilepsy. Future epidemiologic studies aimed at investigating post-stroke seizures should include precise information on these complications.
    Type of Medium: Online Resource
    ISSN: 1015-9770 , 1421-9786
    URL: Article
    DOI: 10.1159/000348704
    Language: English
    Publisher: S. Karger AG
    Publication Date: 2013
    detail.hit.zdb_id: 1482069-9
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  • 5
    Online Resource
    Online Resource
    Safety of Anticoagulation in Patients Treated With Urgent Reperfusion for Ischemic Stroke Related to Atrial Fibrillation
    Ovid Technologies (Wolters Kluwer Health) ; 2020
    In:  Stroke Vol. 51, No. 8 ( 2020-08), p. 2347-2354
    Details
    In: Stroke, Ovid Technologies (Wolters Kluwer Health), Vol. 51, No. 8 ( 2020-08), p. 2347-2354
    Abstract: The optimal timing for starting oral anticoagulant after an ischemic stroke related to atrial fibrillation remains a challenge, mainly in patients treated with systemic thrombolysis or mechanical thrombectomy. We aimed at assessing the incidence of early recurrence and major bleeding in patients with acute ischemic stroke and atrial fibrillation treated with thrombolytic therapy and/or thrombectomy, who then received oral anticoagulants for secondary prevention. Methods: We combined the dataset of the RAF and the RAF-NOACs (Early Recurrence and Major Bleeding in Patients With Acute Ischemic Stroke and Atrial Fibrillation Treated With Non–Vitamin K Oral Anticoagulants) studies, which were prospective observational studies carried out from January 2012 to March 2014 and April 2014 to June 2016, respectively. We included consecutive patients with acute ischemic stroke and atrial fibrillation treated with either vitamin K antagonists or nonvitamin K oral anticoagulants. Primary outcome was the composite of stroke, transient ischemic attack, symptomatic systemic embolism, symptomatic cerebral bleeding, and major extracerebral bleeding within 90 days from the inclusion. Treated-patients were propensity matched to untreated-patients in a 1:1 ratio after stratification by baseline clinical features. Results: A total of 2159 patients were included, 564 (26%) patients received acute reperfusion therapies. After the index event, 505 (90%) patients treated with acute reperfusion therapies and 1287 of 1595 (81%) patients untreated started oral anticoagulation. Timing of starting oral anticoagulant was similar in reperfusion-treated and untreated patients (median 7.5 versus 7.0 days, respectively). At 90 days, the primary study outcome occurred in 37 (7%) patients treated with reperfusion and in 146 (9%) untreated patients (odds ratio, 0.74 [95% CI, 0.50–1.07]). After propensity score matching, risk of primary outcome was comparable between the 2 groups (odds ratio, 1.06 [95% CI, 0.53–2.02] ). Conclusions: Acute reperfusion treatment did not influence the risk of early recurrence and major bleeding in patients with atrial fibrillation–related acute ischemic stroke, who started on oral anticoagulant.
    Type of Medium: Online Resource
    ISSN: 0039-2499 , 1524-4628
    URL: Article
    DOI: 10.1161/STROKEAHA.120.030143
    RVK:
    XA 10000
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2020
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  • 6
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    Acute Stroke
    Georg Thieme Verlag KG ; 2019
    In:  Seminars in Neurology Vol. 39, No. 01 ( 2019-02), p. 061-072
    Details
    In: Seminars in Neurology, Georg Thieme Verlag KG, Vol. 39, No. 01 ( 2019-02), p. 061-072
    Abstract: Stroke remains one of the leading determinants of death and severe disability worldwide. It is a medical emergency with a narrow window for recognition and administration of outcome-modifying treatment in the emergency department. Ischemic stroke accounts for the majority of cerebrovascular events and revascularization therapies such as intravenous thrombolysis and endovascular thrombectomy are the mainstays of treatment in carefully selected patients. Intracerebral hemorrhage is less common but remains the deadliest type of stroke. Blood pressure reduction and hemostatic treatment in case of coagulopathy are the cornerstones of acute intracerebral hemorrhage treatment. Admission to dedicated stroke units is associated with improved outcome in patients suffering from acute stroke.
    Type of Medium: Online Resource
    ISSN: 0271-8235 , 1098-9021
    URL: Article
    DOI: 10.1055/s-0038-1676992
    Language: English
    Publisher: Georg Thieme Verlag KG
    Publication Date: 2019
    detail.hit.zdb_id: 2072477-9
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  • 7
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    Early Recurrence and Major Bleeding in Patients With Acute Ischemic Stroke and Atrial Fibrillation Treated With Non–Vitamin‐K Oral Anticoagulants (RAF‐NOACs) Study
    Ovid Technologies (Wolters Kluwer Health) ; 2017
    In:  Journal of the American Heart Association Vol. 6, No. 12 ( 2017-12-02)
    Details
    In: Journal of the American Heart Association, Ovid Technologies (Wolters Kluwer Health), Vol. 6, No. 12 ( 2017-12-02)
    Abstract: The optimal timing to administer non–vitamin K oral anticoagulants ( NOAC s) in patients with acute ischemic stroke and atrial fibrillation is unclear. This prospective observational multicenter study evaluated the rates of early recurrence and major bleeding (within 90 days) and their timing in patients with acute ischemic stroke and atrial fibrillation who received NOAC s for secondary prevention. Methods and Results Recurrence was defined as the composite of ischemic stroke, transient ischemic attack, and symptomatic systemic embolism, and major bleeding was defined as symptomatic cerebral and major extracranial bleeding. For the analysis, 1127 patients were eligible: 381 (33.8%) were treated with dabigatran, 366 (32.5%) with rivaroxaban, and 380 (33.7%) with apixaban. Patients who received dabigatran were younger and had lower admission National Institutes of Health Stroke Scale score and less commonly had a CHA 2 DS 2 ‐ VAS c score 〉 4 and less reduced renal function. Thirty‐two patients (2.8%) had early recurrence, and 27 (2.4%) had major bleeding. The rates of early recurrence and major bleeding were, respectively, 1.8% and 0.5% in patients receiving dabigatran, 1.6% and 2.5% in those receiving rivaroxaban, and 4.0% and 2.9% in those receiving apixaban. Patients who initiated NOAC s within 2 days after acute stroke had a composite rate of recurrence and major bleeding of 12.4%; composite rates were 2.1% for those who initiated NOACs between 3 and 14 days and 9.1% for those who initiated 〉 14 days after acute stroke. Conclusions In patients with acute ischemic stroke and atrial fibrillation, treatment with NOAC s was associated with a combined 5% rate of ischemic embolic recurrence and severe bleeding within 90 days.
    Type of Medium: Online Resource
    ISSN: 2047-9980
    URL: Article
    DOI: 10.1161/JAHA.117.007034
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2017
    detail.hit.zdb_id: 2653953-6
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  • 8
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    Hemorrhagic Transformation in Patients With Acute Ischemic Stroke and Atrial Fibrillation: Time to Initiation of Oral Anticoagulant Therapy and Outcomes
    Ovid Technologies (Wolters Kluwer Health) ; 2018
    In:  Journal of the American Heart Association Vol. 7, No. 22 ( 2018-11-20)
    Details
    In: Journal of the American Heart Association, Ovid Technologies (Wolters Kluwer Health), Vol. 7, No. 22 ( 2018-11-20)
    Abstract: In patients with acute ischemic stroke and atrial fibrillation, early anticoagulation prevents ischemic recurrence but with the risk of hemorrhagic transformation ( HT ). The aims of this study were to evaluate in consecutive patients with acute stroke and atrial fibrillation (1) the incidence of early HT, (2) the time to initiation of anticoagulation in patients with HT , (3) the association of HT with ischemic recurrences, and (4) the association of HT with clinical outcome at 90 days. Methods and Results HT was diagnosed by a second brain computed tomographic scan performed 24 to 72 hours after stroke onset. The incidence of ischemic recurrences as well as mortality or disability (modified Rankin Scale scores 〉 2) were evaluated at 90 days. Ischemic recurrences were the composite of ischemic stroke, transient ischemic attack, or systemic embolism. Among the 2183 patients included in the study, 241 (11.0%) had HT . Patients with and without HT initiated anticoagulant therapy after a mean 23.3 and 11.6 days, respectively, from index stroke. At 90 days, 4.6% (95% confidence interval, 2.3–8.0) of the patients with HT had ischemic recurrences compared with 4.9% (95% confidence interval, 4.0–6.0) of those without HT ; 53.1% of patients with  HT were deceased or disabled compared with 35.8% of those without HT . On multivariable analysis, HT was associated with mortality or disability (odds ratio, 1.71; 95% confidence interval, 1.24–2.35). Conclusions In patients with HT , anticoagulation was initiated about 12 days later than patients without HT . This delay was not associated with increased detection of ischemic recurrence. HT was associated with increased mortality or disability.
    Type of Medium: Online Resource
    ISSN: 2047-9980
    URL: Article
    DOI: 10.1161/JAHA.118.010133
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 2018
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  • 9
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    Intravenous fibrinolysis plus endovascular thrombectomy versus direct endovascular thrombectomy for anterior circulation acute ischemic stroke: clinical and infarct volume results
    Springer Science and Business Media LLC ; 2019
    In:  BMC Neurology Vol. 19, No. 1 ( 2019-12)
    Details
    In: BMC Neurology, Springer Science and Business Media LLC, Vol. 19, No. 1 ( 2019-12)
    Type of Medium: Online Resource
    ISSN: 1471-2377
    URL: Article
    DOI: 10.1186/s12883-019-1341-3
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2019
    detail.hit.zdb_id: 2041347-6
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  • 10
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    Early recurrence in paroxysmal versus sustained atrial fibrillation in patients with acute ischaemic stroke
    SAGE Publications ; 2019
    In:  European Stroke Journal Vol. 4, No. 1 ( 2019-03), p. 55-64
    Details
    In: European Stroke Journal, SAGE Publications, Vol. 4, No. 1 ( 2019-03), p. 55-64
    Abstract: The relationship between different patterns of atrial fibrillation and early recurrence after an acute ischaemic stroke is unclear. Purpose In a prospective cohort study, we evaluated the rates of early ischaemic recurrence after an acute ischaemic stroke in patients with paroxysmal atrial fibrillation or sustained atrial fibrillation which included persistent and permanent atrial fibrillation. Methods In patients with acute ischaemic stroke, atrial fibrillation was categorised as paroxysmal atrial fibrillation or sustained atrial fibrillation. Ischaemic recurrences were the composite of ischaemic stroke, transient ischaemic attack and symptomatic systemic embolism occurring within 90 days from acute index stroke. Results A total of 2150 patients (1155 females, 53.7%) were enrolled: 930 (43.3%) had paroxysmal atrial fibrillation and 1220 (56.7%) sustained atrial fibrillation. During the 90-day follow-up, 111 ischaemic recurrences were observed in 107 patients: 31 in patients with paroxysmal atrial fibrillation (3.3%) and 76 with sustained atrial fibrillation (6.2%) (hazard ratio (HR) 1.86 (95% CI 1.24–2.81)). Patients with sustained atrial fibrillation were on average older, more likely to have diabetes mellitus, hypertension, history of stroke/ transient ischaemic attack, congestive heart failure, atrial enlargement, high baseline NIHSS-score and implanted pacemaker. After adjustment by Cox proportional hazard model, sustained atrial fibrillation was not associated with early ischaemic recurrences (adjusted HR 1.23 (95% CI 0.74–2.04)). Conclusions After acute ischaemic stroke, patients with sustained atrial fibrillation had a higher rate of early ischaemic recurrence than patients with paroxysmal atrial fibrillation. After adjustment for relevant risk factors, sustained atrial fibrillation was not associated with a significantly higher risk of recurrence, thus suggesting that the risk profile associated with atrial fibrillation, rather than its pattern, is determinant for recurrence.
    Type of Medium: Online Resource
    ISSN: 2396-9873 , 2396-9881
    URL: Article
    DOI: 10.1177/2396987318785853
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2019
    detail.hit.zdb_id: 2851287-X
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