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1.
BMC Neurol ; 23(1): 206, 2023 May 25.
Article Dans Anglais | MEDLINE | ID: covidwho-20238613

Résumé

INTRODUCTION: The COVID-19 pandemic has had an impact on the emergency department (ED). Door-to-needle time (DNT) could be prolonged for intravenous thrombolysis (IVT) treatment. We aimed to investigate the impact of two COVID-19 pandemics on the workflow of IVT in our neurovascular ED. METHOD: We performed a retrospective analysis of patients who received IVT treatment in the neurovascular ED of Beijing Tiantan Hospital, Beijing, from January 20, 2020, to October 30, 2020, covering two COVID-19 pandemics in China. The time-based performances of IVT treatment including onset-to-arrival time, arrival-to-CT time, CT-to-needle time, door-to-needle time, and onset-to-needle time were recorded. Data on clinical characteristics and imaging information were also collected. RESULTS: Four hundred forty patients that received IVT were enrolled in this study. The number of patients admitted to our neurovascular ED began to decrease in December 2019 and was the lowest in April 2020 (n = 95). Longer DNT (Wuhan pandemic: 49.00 [35.00, 64.00] min; Beijing pandemic: 55.00 [45.50, 77.00] min) interval delays were observed during the two pandemics (p = .016). More patients admitted during the two pandemics had an 'unknown' subtype (Wuhan pandemic: 21.8%; Beijing pandemic: 31.4%. p = .008). The percentage of the cardiac embolism subtype was higher during the Wuhan pandemic (20.0%) than during other periods. The median admission NIHSS score increased during the Wuhan pandemic and the Beijing pandemic (8.00 [4.00, 12.00], 7.00 [4.50, 14.00], respectively, p < .001). CONCLUSION: The number of patients who received IVT decreased during the Wuhan pandemic. Higher admission NIHSS scores and prolonged DNT intervals were also observed during the Wuhan pandemic and the Beijing pandemic.


Sujets)
Encéphalopathie ischémique , COVID-19 , Accident vasculaire cérébral ischémique , Accident vasculaire cérébral , Humains , Fibrinolytiques/usage thérapeutique , Accident vasculaire cérébral/traitement médicamenteux , Pandémies , Accident vasculaire cérébral ischémique/traitement médicamenteux , Traitement thrombolytique/méthodes , Études rétrospectives , Délai jusqu'au traitement , Chine/épidémiologie , Encéphalopathie ischémique/traitement médicamenteux , Résultat thérapeutique
2.
Int J Stroke ; 18(4): 383-391, 2023 04.
Article Dans Anglais | MEDLINE | ID: covidwho-2317287

Résumé

Antiphospholipid syndrome (APS) is a prothrombotic autoimmune disease with heterogeneous clinicopathological manifestations and is a well-established cause of acute ischemic stroke (AIS) and transient ischemic attack (TIA), particularly in younger patients. There is growing recognition of a wider spectrum of APS-associated cerebrovascular lesions, including white matter hyperintensities, cortical atrophy, and infarcts, which may have clinically important neurocognitive sequalae. Diagnosis of APS-associated AIS/TIA requires expert review of clinical and laboratory information. Management poses challenges, given the potential for substantial morbidity and recurrent thrombosis, additional risk conferred by conventional cardiovascular risk factors, and limited evidence base regarding optimal antithrombotic therapy for secondary prevention. In this review, we summarize key features of APS-associated cerebrovascular disorders, with focus on clinical and laboratory aspects of diagnostic evaluation. The current status of prognostic markers is considered. We review the evidence base for antithrombotic treatment in APS-associated stroke and discuss uncertainties, including the optimal intensity of anticoagulation and efficacy of direct oral anticoagulants. Clinical practice recommendations are provided, covering antithrombotic treatment, supportive management, and options for anticoagulant-refractory cases, and we highlight the benefits of adopting a considered, multidisciplinary team approach.


Sujets)
Syndrome des anticorps antiphospholipides , Accident ischémique transitoire , Accident vasculaire cérébral ischémique , Accident vasculaire cérébral , Humains , Syndrome des anticorps antiphospholipides/complications , Syndrome des anticorps antiphospholipides/diagnostic , Syndrome des anticorps antiphospholipides/traitement médicamenteux , Accident vasculaire cérébral/traitement médicamenteux , Accident vasculaire cérébral ischémique/traitement médicamenteux , Fibrinolytiques/usage thérapeutique , Accident ischémique transitoire/complications , Anticorps antiphospholipides/usage thérapeutique , Anticoagulants/effets indésirables
3.
Eur Heart J ; 43(39): 3947-3956, 2022 10 14.
Article Dans Anglais | MEDLINE | ID: covidwho-2319780

Résumé

AIMS: In a retrospective analysis of dal-Outcomes, the effect of dalcetrapib on cardiovascular events was influenced by an adenylate cyclase type 9 (ADCY9) gene polymorphism. The dal-GenE study was conducted to test this pharmacogenetic hypothesis. METHODS AND RESULTS: dal-GenE was a double-blind trial in patients with an acute coronary syndrome within 1-3 months and the AA genotype at variant rs1967309 in the ADCY9 gene. A total of 6147 patients were randomly assigned to receive dalcetrapib 600 mg or placebo daily. The primary endpoint was the time from randomization to first occurrence of cardiovascular death, resuscitated cardiac arrest, non-fatal myocardial infarction, or non-fatal stroke. After a median follow-up of 39.9 months, the primary endpoint occurred in 292 (9.5%) of 3071 patients in the dalcetrapib group and 327 (10.6%) of 3076 patients in the placebo group [hazard ratio 0.88; 95% confidence interval (CI) 0.75-1.03; P = 0.12]. The hazard ratios for the components of the primary endpoint were 0.79 (95% CI 0.65-0.96) for myocardial infarction, 0.92 (95% CI 0.64-1.33) for stroke, 1.21 (95% CI 0.91-1.60) for death from cardiovascular causes, and 2.33 (95% CI 0.60-9.02) for resuscitated cardiac arrest. In a pre-specified on-treatment sensitivity analysis, the primary endpoint event rate was 7.8% (236/3015) in the dalcetrapib group and 9.3% (282/3031) in the placebo group (hazard ratio 0.83; 95% CI 0.70-0.98). CONCLUSION: Dalcetrapib did not significantly reduce the risk of occurrence of the primary endpoint of ischaemic cardiovascular events at end of study. A new trial would be needed to test the pharmacogenetic hypothesis that dalcetrapib improves the prognosis of patients with the AA genotype. CLINICAL TRIAL REGISTRATION: Trial registration dal-GenE ClinicalTrials.gov Identifier: NCT02525939.


Sujets)
Syndrome coronarien aigu , Anticholestérolémiants , Arrêt cardiaque , Infarctus du myocarde , Accident vasculaire cérébral , Syndrome coronarien aigu/traitement médicamenteux , Syndrome coronarien aigu/génétique , Adenylate Cyclase/génétique , Adenylate Cyclase/usage thérapeutique , Amides , Anticholestérolémiants/usage thérapeutique , Méthode en double aveugle , Esters , Humains , Infarctus du myocarde/traitement médicamenteux , Infarctus du myocarde/génétique , Pharmacogénétique , Études rétrospectives , Accident vasculaire cérébral/traitement médicamenteux , Thiols
4.
Clin Neuropharmacol ; 46(1): 17-30, 2023.
Article Dans Anglais | MEDLINE | ID: covidwho-2305253

Résumé

OBJECTIVES: The present review describes stroke pathophysiology in brief and discusses the spectrum of available treatments with different promising interventions that are in clinical settings or are in clinical trials. METHODS: Relevant articles were searched using Google Scholar, Cochrane Library, and PubMed. Keywords for the search included ischemic stroke, mechanisms, stroke interventions, clinical trials, and stem cell therapy. RESULTS AND CONCLUSION: Stroke accounts to a high burden of mortality and morbidity around the globe. Time is an important factor in treating stroke. Treatment options are limited; however, agents with considerable efficacy and tolerability are being continuously explored. With the advances in stroke interventions, new therapies are being formulated with a hope that these may aid the ongoing protective and reparative processes. Such therapies may have an extended therapeutic time window in hours, days, weeks, or longer and may have the advantage to be accessible by a majority of the patients.


Sujets)
Accident vasculaire cérébral , Humains , Accident vasculaire cérébral/traitement médicamenteux
5.
N Engl J Med ; 388(14): 1272-1283, 2023 Apr 06.
Article Dans Anglais | MEDLINE | ID: covidwho-2263629

Résumé

BACKGROUND: The role of endovascular therapy for acute stroke with a large infarction has not been extensively studied in differing populations. METHODS: We conducted a multicenter, prospective, open-label, randomized trial in China involving patients with acute large-vessel occlusion in the anterior circulation and an Alberta Stroke Program Early Computed Tomography Score of 3 to 5 (range, 0 to 10, with lower values indicating larger infarction) or an infarct-core volume of 70 to 100 ml. Patients were randomly assigned in a 1:1 ratio within 24 hours from the time they were last known to be well to undergo endovascular therapy and receive medical management or to receive medical management alone. The primary outcome was the score on the modified Rankin scale at 90 days (scores range from 0 to 6, with higher scores indicating greater disability), and the primary objective was to determine whether a shift in the distribution of the scores on the modified Rankin scale at 90 days had occurred between the two groups. Secondary outcomes included scores of 0 to 2 and 0 to 3 on the modified Rankin scale. The primary safety outcome was symptomatic intracranial hemorrhage within 48 hours after randomization. RESULTS: A total of 456 patients were enrolled; 231 were assigned to the endovascular-therapy group and 225 to the medical-management group. Approximately 28% of the patients in both groups received intravenous thrombolysis. The trial was stopped early owing to the efficacy of endovascular therapy after the second interim analysis. At 90 days, a shift in the distribution of scores on the modified Rankin scale toward better outcomes was observed in favor of endovascular therapy over medical management alone (generalized odds ratio, 1.37; 95% confidence interval, 1.11 to 1.69; P = 0.004). Symptomatic intracranial hemorrhage occurred in 14 of 230 patients (6.1%) in the endovascular-therapy group and in 6 of 225 patients (2.7%) in the medical-management group; any intracranial hemorrhage occurred in 113 (49.1%) and 39 (17.3%), respectively. Results for the secondary outcomes generally supported those of the primary analysis. CONCLUSIONS: In a trial conducted in China, patients with large cerebral infarctions had better outcomes with endovascular therapy administered within 24 hours than with medical management alone but had more intracranial hemorrhages. (Funded by Covidien Healthcare International Trading [Shanghai] and others; ANGEL-ASPECT ClinicalTrials.gov number, NCT04551664.).


Sujets)
Encéphalopathie ischémique , Infarctus cérébral , Procédures endovasculaires , Accident vasculaire cérébral ischémique , Thrombectomie , Humains , Encéphalopathie ischémique/traitement médicamenteux , Encéphalopathie ischémique/chirurgie , Infarctus cérébral/traitement médicamenteux , Infarctus cérébral/chirurgie , Chine , Procédures endovasculaires/effets indésirables , Procédures endovasculaires/méthodes , Fibrinolytiques/effets indésirables , Fibrinolytiques/usage thérapeutique , Hémorragies intracrâniennes/induit chimiquement , Hémorragies intracrâniennes/étiologie , Accident vasculaire cérébral ischémique/traitement médicamenteux , Accident vasculaire cérébral ischémique/chirurgie , Études prospectives , Accident vasculaire cérébral/traitement médicamenteux , Accident vasculaire cérébral/chirurgie , Thrombectomie/effets indésirables , Thrombectomie/méthodes , Résultat thérapeutique
6.
Circulation ; 147(11): 897-913, 2023 03 14.
Article Dans Anglais | MEDLINE | ID: covidwho-2261224

Résumé

Therapeutic anticoagulation is indicated for a variety of circumstances and conditions in several fields of medicine to prevent or treat venous and arterial thromboembolism. According to the different mechanisms of action, the available parenteral and oral anticoagulant drugs share the common principle of hampering or blocking key steps of the coagulation cascade, which unavoidably comes at the price of an increased propensity to bleed. Hemorrhagic complications affect patient prognosis both directly and indirectly (ie, by preventing the adoption of an effective antithrombotic strategy). Inhibition of factor XI (FXI) has emerged as a strategy with the potential to uncouple the pharmacological effect and the adverse events of anticoagulant therapy. This observation is based on the differential contribution of FXI to thrombus amplification, in which it plays a major role, and hemostasis, in which it plays an ancillary role in final clot consolidation. Several agents were developed to inhibit FXI at different stages (ie, suppressing biosynthesis, preventing zymogen activation, or impeding the biological action of the active form), including antisense oligonucleotides, monoclonal antibodies, small synthetic molecules, natural peptides, and aptamers. Phase 2 studies of different classes of FXI inhibitors in orthopedic surgery suggested that dose-dependent reductions in thrombotic complications are not paralleled by dose-dependent increases in bleeding compared with low-molecular-weight heparin. Likewise, the FXI inhibitor asundexian was associated with lower rates of bleeding compared with the activated factor X inhibitor apixaban in patients with atrial fibrillation, although no evidence of a therapeutic effect on stroke prevention is available so far. FXI inhibition could also be appealing for patients with other conditions, including end-stage renal disease, noncardioembolic stroke, or acute myocardial infarction, for which other phase 2 studies have been conducted. The balance between thromboprophylaxis and bleeding achieved by FXI inhibitors needs confirmation in large-scale phase 3 clinical trials powered for clinical end points. Several of such trials are ongoing or planned to define the role of FXI inhibitors in clinical practice and to clarify which FXI inhibitor may be most suited for each clinical indication. This article reviews the rationale, pharmacology, results of medium or small phase 2 studies, and future perspectives of drugs inhibiting FXI.


Sujets)
Accident vasculaire cérébral , Thrombose , Thromboembolisme veineux , Humains , Facteur XI , Anticoagulants/effets indésirables , Thromboembolisme veineux/traitement médicamenteux , Coagulation sanguine , Thrombose/traitement médicamenteux , Thrombose/prévention et contrôle , Hémorragie/étiologie , Accident vasculaire cérébral/traitement médicamenteux
7.
BMC Neurol ; 23(1): 146, 2023 Apr 05.
Article Dans Anglais | MEDLINE | ID: covidwho-2268811

Résumé

BACKGROUND: Little is known about the rate of real-world inpatient rehabilitation therapy (IRT) after stroke. We aimed to determine the rate of inpatient rehabilitation therapy and its associated factors in patients who undergo reperfusion therapy in China. METHODS: This national prospective registry study included hospitalized ischemic stroke patients aged 14-99 years with reperfusion therapy between January 1, 2019, and June 30, 2020, collecting hospital-level and patient-level demographic and clinical data. IRT included acupuncture or massage, physical therapy, occupational therapy, speech therapy, and others. The primary outcome was the rate of patients receiving IRT. RESULTS: We included 209,189 eligible patients from 2191 hospitals. The median age was 66 years, and 64.2% were men. Four in five patients received only thrombolysis, and the rest 19.2% underwent endovascular therapy. The overall rate of IRT was 58.2% (95% CI, 58.0-58.5%). Differences in demographic and clinical variables existed between patients with and without IRT. The rates of acupuncture or massage, physical therapy, occupational therapy, speech therapy, and other rehabilitation interventions were 38.0%, 28.8%, 11.8%, 14.4%, and 22.9%, respectively. The rates of single and multimodal interventions were 28.3% and 30.0%, respectively. A lower likelihood of receiving IRT was associated with being 14-50 or 76-99 years old, female, from Northeast China, from Class-C hospitals, receiving only thrombolysis, having severe stroke or severe deterioration, a short length of stay, Covid-19 pandemic and having intracranial or gastrointestinal hemorrhage. CONCLUSION: Among our patient population, the IRT rate was low with limited use of physical therapy, multimodal interventions, and rehabilitation centers and varied by demographic and clinical features. The implementation of IRT remains a challenge for stroke care, warranting urgent and effective national programs to enhance post-stroke rehabilitation and the adherence to guidelines.


Sujets)
COVID-19 , Réadaptation après un accident vasculaire cérébral , Accident vasculaire cérébral , Mâle , Humains , Femelle , Sujet âgé , Sujet âgé de 80 ans ou plus , Patients hospitalisés , Pandémies , Accident vasculaire cérébral/traitement médicamenteux , Enregistrements , Reperfusion , Résultat thérapeutique
8.
Zh Nevrol Psikhiatr Im S S Korsakova ; 123(3. Vyp. 2): 76-84, 2023.
Article Dans Russe | MEDLINE | ID: covidwho-2277562

Résumé

The development of COVID-19 is associated with damage to various organs and organ systems, including the development of acute ischemic stroke (AI). The article examines modern ideas about the pathogenesis of AI in COVID-19. The data on the choice of optimal therapy for patients with acute AI and COVID-19, as well as on the possibility of improving the effectiveness of rehabilitation measures, are analyzed. Information is provided on the efficacy of the drug Mexidol in patients with AI and COVID-19.


Sujets)
Encéphalopathie ischémique , COVID-19 , Accident vasculaire cérébral ischémique , Réadaptation après un accident vasculaire cérébral , Accident vasculaire cérébral , Humains , Accident vasculaire cérébral/complications , Accident vasculaire cérébral/traitement médicamenteux , Accident vasculaire cérébral ischémique/traitement médicamenteux , Accident vasculaire cérébral ischémique/complications , Encéphalopathie ischémique/complications , Encéphalopathie ischémique/traitement médicamenteux , COVID-19/complications , Patients
10.
Br J Gen Pract ; 72(720): e456-e463, 2022 07.
Article Dans Anglais | MEDLINE | ID: covidwho-2217131

Résumé

BACKGROUND: Early evidence has shown that anticoagulant reduces the risk of thrombotic events in those infected with COVID-19. However, evidence of the role of routinely prescribed oral anticoagulants (OACs) in COVID-19 outcomes is limited. AIM: To investigate the association between OACs and COVID-19 outcomes in those with atrial fibrillation and a CHA2DS2-VASc score of 2. DESIGN AND SETTING: On behalf of NHS England, a population-based cohort study was conducted. METHOD: The study used primary care data and pseudonymously-linked SARS-CoV-2 antigen testing data, hospital admissions, and death records from England. Cox regression was used to estimate hazard ratios (HRs) for COVID-19 outcomes comparing people with current OAC use versus non-use, accounting for age, sex, comorbidities, other medications, deprivation, and general practice. RESULTS: Of 71 103 people with atrial fibrillation and a CHA2DS2-VASc score of 2, there were 52 832 current OAC users and 18 271 non-users. No difference in risk of being tested for SARS-CoV-2 was associated with current use (adjusted HR [aHR] 0.99, 95% confidence interval [CI] = 0.95 to 1.04) versus non-use. A lower risk of testing positive for SARS-CoV-2 (aHR 0.77, 95% CI = 0.63 to 0.95) and a marginally lower risk of COVID-19-related death (aHR, 0.74, 95% CI = 0.53 to 1.04) were associated with current use versus non-use. CONCLUSION: Among those at low baseline stroke risk, people receiving OACs had a lower risk of testing positive for SARS-CoV-2 and severe COVID-19 outcomes than non-users; this might be explained by a causal effect of OACs in preventing severe COVID-19 outcomes or unmeasured confounding, including more cautious behaviours leading to reduced infection risk.


Sujets)
Fibrillation auriculaire , COVID-19 , Accident vasculaire cérébral , Administration par voie orale , Anticoagulants/usage thérapeutique , Fibrillation auriculaire/complications , Fibrillation auriculaire/traitement médicamenteux , Fibrillation auriculaire/épidémiologie , COVID-19/épidémiologie , Études de cohortes , Humains , SARS-CoV-2 , Accident vasculaire cérébral/traitement médicamenteux , Accident vasculaire cérébral/épidémiologie , Accident vasculaire cérébral/prévention et contrôle
12.
J Stroke Cerebrovasc Dis ; 32(4): 107031, 2023 Apr.
Article Dans Anglais | MEDLINE | ID: covidwho-2181010

Résumé

OBJECTIVES: Cerebrovascular stroke (CVS) is one of the well-known complications of coronavirus-2019 (Covid-19), but less is known about the outcome and safety of thrombolytic therapy in these patients. In this study we compare the efficacy and safety of Tissue plasminogen activator (rTPA) in acute ischemic stroke (AIS) patients with or without Covid-19 infection. MATERIALS AND METHODS: A comparative prospective study in which all patients who presented with AIS and eligible for rTPA were recruited from the emergency department and classified into 2 groups (AIS with Covid-19 infection and AIS without Covid-19 as controls). Demographic data, symptoms of Covid-19, clinical examination, neuroimaging, and laboratory investigations were obtained in each patient. National Institute of Health Stroke Scale (NIHSS) and the Modified Rankin Scale (mRS) were assessed before, immediately after rTPA, and 3 months later. RESULTS: There were 22 patients in the COVID-19 group and 25 control patients. Those with COVID-19 were more likely to have a history of smoking and Diabetes Mellitus than controls. On admission, motor symptoms were more severe in patients with COVID-19. COVID-19 patients were more likely to have symptomatic intra-cerebral hemorrhage and radiological hemorrhagic transformation than controls. Onset to door time (ODT) and onset to successful reperfusion time were significantly longer in Covid-19 patients than controls. Clinical improvement and frequency of re-occlusion and recurrent ischemic stroke at 3 months follow-up did not differ between groups, although there was higher number of deaths (27.3%) in the Covid-19 group than controls (16%). CONCLUSIONS: Using rTPA is safe and effective in patients with AIS with or without COVID-19 infection despite the high frequency of hemorrhagic transformation and high number of deaths.


Sujets)
Encéphalopathie ischémique , COVID-19 , Accident vasculaire cérébral ischémique , Accident vasculaire cérébral , Humains , Activateur tissulaire du plasminogène/effets indésirables , Fibrinolytiques/effets indésirables , Accident vasculaire cérébral ischémique/imagerie diagnostique , Accident vasculaire cérébral ischémique/traitement médicamenteux , Études prospectives , COVID-19/complications , Accident vasculaire cérébral/imagerie diagnostique , Accident vasculaire cérébral/traitement médicamenteux , Traitement thrombolytique/effets indésirables , Traitement thrombolytique/méthodes , Résultat thérapeutique , Encéphalopathie ischémique/imagerie diagnostique , Encéphalopathie ischémique/traitement médicamenteux
13.
BMC Neurol ; 23(1): 10, 2023 Jan 09.
Article Dans Anglais | MEDLINE | ID: covidwho-2196100

Résumé

BACKGROUND: We investigated the influence of the coronavirus disease 2019 (COVID-19) pandemic on the number of patients with acute ischemic stroke who received intravenous thrombolytic therapy (ITT) in Dalian, China, in 2020. METHODS: This retrospective descriptive study, conducted from February 1, 2020, to August 31, 2020, examined 13 hospitals in Dalian that participated in the "stroke emergency map". To use this "stroke emergency map" of China, patients followed the official "Stroke Map" WeChat account and dialed 120 for emergency medical services. We analyzed the number of patients with acute ischemic stroke who underwent ITT. In particular, we examined the onset-to-door time (ODT), door-to-needle time (DNT), onset-to-needle time (ONT), mode of transportation to the hospital, and National Institutes of Health Stroke Scale (NIHSS) scores before and after ITT. Data were collected for the aforementioned period and compared with the 2021 baseline data from the same time of year. The Mann‒Whitney U test was performed for data analysis. RESULTS: Compared with the data from 2020, the number of patients with acute ischemic stroke who underwent ITT increased (from 735 to 1719 cases) in 2021, but the DNT decreased (from 59 to 45 min; P = 0.002). Moreover, 83.9% of patients in 2020 presented to the hospital without ambulance transport, compared to 81.1% of patients in the 2021 non-COVID-19 pandemic period. Patients with NIHSS scores of 6-14 were more likely to call an ambulance for transport to the hospital than to transport themselves to the emergency department. CONCLUSIONS: During the 2020 COVID-19 pandemic, the DNT was prolonged as a result of strengthened fever surveillance. In 2021, the number of patients with acute ischemic stroke who underwent ITT increased compared to the previous year. Notably, the growth in the number of patients with acute ischemic stroke who underwent ITT benefited from both the "stroke emergency map" of China and the "green channel," a novel treatment approach that focuses on the rational design of the rescue process. TRIAL REGISTRATION: Our study was a retrospective descriptive study, not a clinical trial, thus we did not have to register for clinical trials.


Sujets)
Encéphalopathie ischémique , COVID-19 , Accident vasculaire cérébral ischémique , Accident vasculaire cérébral , Humains , Activateur tissulaire du plasminogène/usage thérapeutique , Accident vasculaire cérébral ischémique/traitement médicamenteux , Accident vasculaire cérébral ischémique/épidémiologie , Pandémies , Études rétrospectives , Encéphalopathie ischémique/complications , Encéphalopathie ischémique/traitement médicamenteux , Encéphalopathie ischémique/épidémiologie , Résultat thérapeutique , Fibrinolytiques/usage thérapeutique , Traitement thrombolytique , Accident vasculaire cérébral/traitement médicamenteux , Accident vasculaire cérébral/épidémiologie , Délai jusqu'au traitement
15.
Oxid Med Cell Longev ; 2022: 7692215, 2022.
Article Dans Anglais | MEDLINE | ID: covidwho-2138248

Résumé

Stroke is the most common cause of epilepsy and ultimately leads to a decrease in the quality of life of those affected. Ischemic and hemorrhagic strokes can both lead to poststroke epilepsy (PSE). Significant risk factors for PSE include age < 65age less than 65 years, stroke severity measured by the National Institutes of Health Stroke Scale (NIHSS), cortical involvement, and genetic factors such as TRPM6 polymorphism. The diagnosis of PSE is made by using imaging modalities, blood biomarkers, and prognostic criteria. Electroencephalography (EEG) is currently the gold standard to diagnose PSE, while new combinations of modalities are being tested to increase diagnostic specificity. This literature review uncovers a newly found mechanism for the pathology of poststroke epilepsy. The pathogenesis of early-onset and late-onset is characterized by sequelae of neuronal cellular hypoxia and disruption of the blood-brain barrier, respectively. Interleukin-6 is responsible for increasing the activity of glial cells, causing gliosis and hyperexcitability of neurons. Epinephrine, high-mobility group protein B1, downregulation of CD32, and upregulation of HLA-DR impact the pathology of poststroke epilepsy by inhibiting the normal neuronal immune response. Decreased levels of neuropeptide Y, a neurotransmitter, act through multiple unique mechanisms, such as inhibiting intracellular Ca2+ accumulation and acting as an anti-inflammatory, also implemented in the worsening progression of poststroke epilepsy. Additionally, CA1 hippocampal resonant neurons that increase theta oscillation are associated with poststroke epilepsy. Hypertensive small vessel disease may also have an implication in the temporal lobe epilepsy by causing occult microinfarctions. Furthermore, this review highlights the potential use of statins as primary prophylaxis against PSE, with multiple studies demonstrating a reduction in incidence using statins alone, statins in combination with antiepileptic drugs (AEDs), and statins with aspirin. The evidence strongly suggests that the second generation AEDs are a superior treatment method for PSE. Data from numerous studies demonstrate their relative lack of significant drug interactions, increased tolerability, and potential superiority in maintaining seizure-free status.


Sujets)
Épilepsie , Inhibiteurs de l'hydroxyméthylglutaryl-CoA réductase , Accident vasculaire cérébral , Humains , Sujet âgé , Incidence , Qualité de vie , Épilepsie/traitement médicamenteux , Crises épileptiques/traitement médicamenteux , Anticonvulsivants/usage thérapeutique , Accident vasculaire cérébral/complications , Accident vasculaire cérébral/traitement médicamenteux , Accident vasculaire cérébral/épidémiologie , Facteurs de risque
16.
Arq Neuropsiquiatr ; 80(5 Suppl 1): 72-79, 2022 05.
Article Dans Anglais | MEDLINE | ID: covidwho-1993575

Résumé

In 2019, the American Heart Association did not recommend the emergent use of anticoagulation to prevent recurrence or progression of acute ischemic stroke. However, its indication in patients with extracranial artery intraluminal thrombus with artery-to-artery cerebral embolization must be analyzed. In this article, we will also discuss other indications of anticoagulation. This treatment could be indicated in patients with ischemic stroke caused by embolization from cervical artery dissection, catastrophic antiphospholipid antibodies syndrome (APS) and some cases of Covid 19. For secondary prevention, anticoagulation is recommended for Cardioembolic stroke such as nonvalvular atrial fibrillation and other cardiopathies, some patients with cervical artery dissection, stroke associated with cancer, and thrombophilia such as APS. The timing to restart anticoagulation after a large ischemic stroke or after a cerebral hemorrhagic transformation always represent a challenge. Even in patients with high risk of thromboembolism it should be delayed at least two weeks, ideal after four weeks.


Sujets)
Fibrillation auriculaire , COVID-19 , Accident vasculaire cérébral ischémique , Accident vasculaire cérébral , Anticoagulants/usage thérapeutique , Fibrillation auriculaire/complications , Humains , Accident vasculaire cérébral/traitement médicamenteux , Accident vasculaire cérébral/étiologie , Accident vasculaire cérébral/prévention et contrôle
17.
Eur Neurol ; 85(5): 349-366, 2022.
Article Dans Anglais | MEDLINE | ID: covidwho-1973983

Résumé

BACKGROUND AND AIM: Despite progress made over the last 30 years, stroke is still a leading cause of disability and mortality; likewise, its burden is expected to increase over the next decades, due to population growth and aging. The development of drugs with better safety-efficacy profiles as well as strategies able to improve ischemic stroke management from the pre-hospital setting is needed. SUMMARY: The pathophysiology of ischemic stroke involves multiple pathways resulting in cerebral artery obstruction and brain tissue ischemia. To date, the only approved drug for acute ischemic stroke is intravenous thrombolytic alteplase. Intravenous thrombolysis (IVT) can be administered alone or in combination with endovascular treatment (EVT) with mechanical thrombectomy, in case of large vessel occlusion and generally within 6 h from symptoms onset. The risk of potential bleeding complications, especially symptomatic intracerebral hemorrhage, is one of the reasons for the reluctance to administer IVT. Tenecteplase is a promising alternative fibrinolytic agent, having a better safety profile than alteplase. Moreover, recent evidences have allowed an extension of the IVT ± EVT time window for patients with unknown onset time and for those with a known onset time thanks to the new "tissue-window" approach guided by advanced neuroimaging techniques, which also helps in collateral circulation estimation. Regarding primary-secondary prevention, researchers are focused on improving the efficacy of antithrombotic drugs with a "hemostasis-sparing" approach. Neuroprotective agents are also under development, particularly stem cells. The COVID-19 pandemic has critically stressed global healthcare systems, with collateral damage resulting in access delivery of only emergency care, such as ischemic stroke. Regarding telemedicine, it has had a minor role in acute stroke management, and with the onset of COVID-19, this role will most likely be adopted to increase access and delivery in stroke assessment, but also in the follow-up.


Sujets)
Encéphalopathie ischémique , COVID-19 , Procédures endovasculaires , Accident vasculaire cérébral ischémique , Neuroprotecteurs , Accident vasculaire cérébral , Encéphalopathie ischémique/complications , Encéphalopathie ischémique/traitement médicamenteux , COVID-19/complications , Procédures endovasculaires/méthodes , Fibrinolytiques/usage thérapeutique , Humains , Neuroprotecteurs/usage thérapeutique , Pandémies , Accident vasculaire cérébral/diagnostic , Accident vasculaire cérébral/traitement médicamenteux , Ténectéplase/usage thérapeutique , Thrombectomie/méthodes , Traitement thrombolytique , Activateur tissulaire du plasminogène/usage thérapeutique , Résultat thérapeutique
18.
Eur J Paediatr Neurol ; 40: 40-43, 2022 Sep.
Article Dans Anglais | MEDLINE | ID: covidwho-1966537

Résumé

Pediatric stroke is considered an infrequent complication of COVID-19. Focal cerebral arteriopathy (FCA) is one of the most common causes of arterial ischemic stroke in a previously healthy child. The present report describes a toddler with FCA most likely induced by SARS-CoV-2 infection who showed significant clinical improvement that may be related to injection of intra-arterial nimodipine. To our knowledge, this is the first reported use of nimodipine in this setting.


Sujets)
COVID-19 , Artériopathies cérébrales , Accident vasculaire cérébral , COVID-19/complications , Artériopathies cérébrales/complications , Artériopathies cérébrales/imagerie diagnostique , Artériopathies cérébrales/traitement médicamenteux , Enfant , Enfant d'âge préscolaire , Humains , Nimodipine/usage thérapeutique , SARS-CoV-2 , Accident vasculaire cérébral/imagerie diagnostique , Accident vasculaire cérébral/traitement médicamenteux , Accident vasculaire cérébral/étiologie
19.
J Stroke Cerebrovasc Dis ; 31(8): 106522, 2022 Aug.
Article Dans Anglais | MEDLINE | ID: covidwho-1956243

Résumé

OBJECTIVES: Transient ischemic attack (TIA) serves a precursor for an acute ischemic stroke (AIS); however, not all TIA patients harbor the same risk for subsequent AIS. We aimed to investigate expediting outpatient management of low-risk TIA patients (ABCD: Giles and Rothwell, 2007 score ≤ 3) via our "Fast-Track" TIA Protocol (FTTP). MATERIALS AND METHODS: A retrospective analysis was performed on patients who presented to our academic network 04/2020 - 2/2021. Patients who presented with ABCD: Giles and Rothwell, 2007 scores ≤ 3 without large vessel occlusion or flow limiting stenosis were eligible for the FTTP. These patients were discharged on dual antiplatelet therapy and statin and received prescriptions for transthoracic echo, holter monitor, LDL, and A1c along with a scheduled follow-up appointment 30 days from presentation. RESULTS: 182 consecutive patients were evaluated during this period, 21 (11%) were excluded from analysis due to NIHSS > 0 and/or infarct present on MRI. 35 (22%) patients qualified for FTTP and were directly discharged from the ED. Median ABCD2 score was 2 for the discharge group and 4 for the admitted group. There was a significant difference with respect to age and hypertension. Additionally, the FTTP patient population were more likely to be smokers than the admitted patient population. 3 FTTP patients re-presented to the ED, but none of them suffered a symptomatic stroke. CONCLUSIONS: A FTTP demonstrated feasibility and safety with low rates of re-presentation and ischemic stroke. Further research is warranted to determine an optimal patient population that can be safely managed in an outpatient setting.


Sujets)
Accident ischémique transitoire , Accident vasculaire cérébral ischémique , Accident vasculaire cérébral , Hospitalisation , Humains , Accident ischémique transitoire/imagerie diagnostique , Accident ischémique transitoire/thérapie , Études rétrospectives , Facteurs de risque , Accident vasculaire cérébral/imagerie diagnostique , Accident vasculaire cérébral/traitement médicamenteux
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