Timing of Initiation of Oral Anticoagulation after Acute Ischemic Stroke in Patients with Atrial Fibrillation

AbstractPatients with atrial fibrillation (AF) who suffer an acute ischemic stroke are at risk for both hemorrhagic transformation and recurrent ischemic stroke in the acute post ‐stroke period. Oral anticoagulants are recommended for secondary stroke prevention in patients with AF. The optimal time to initiate anticoagulant therapy after acute ischemic stroke in patients with AF is uncertain. There is concern that early initiation increases the risk of hemorrhagic transfo rmation, whereas delayed initiation leaves the patient at risk for recurrent ischemic stroke. In this article, we provide a review of the risk of hemorrhagic transformation of acute ischemic stroke as well as review the literature and major guidelines addressing the timing of anticoagulation initiat ion after an acute ischemic stroke in patients with AF. Relevant articles published from 1990 to the present were identified using the PubMed and Embase databases. The majority of available literature is observational data. Large ischemic lesions, cerebral microbleeds, thrombolytic therapy, and othe r clinical factors may increase the risk of hemorrhagic transformation of an acute ischemic stroke. Parenteral anticoagulation within 48 hours is associated with an increased risk of hemorrhagic transformation and is not recommended. Insufficient data exist to support the safety of routine oral anti coagulant (direct oral anticoagulants or warfarin) initiation within 48 hours of an acute ischemic stroke. Direct ora...
Source: Pharmacotherapy: The Journal of Human Pharmacology and Drug Therapy - Category: Drugs & Pharmacology Authors: Tags: REVIEW OF THERAPEUTICS Source Type: research

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Authors: Yang Y, Sun W, Li D, Li XY, Wang XT, Li SC, Zhao HJ, Zhang JB Abstract Atrial fibrillation (AF) is an independent risk factor for intracranial hemorrhage in patients receiving recombinant-tissue-type plasminogen activator (rt-PA) thrombolytic therapy. Research showed that patients with acute ischemic stroke (AIS) could benefit from multimode computed-tomography- (CT-) guided intravenous thrombolysis over 4.5 hours. The medical data of patients with AIS in our center were retrospectively reviewed, and the data of the multimode CT-guided thrombolytic therapy or nonthrombolytic therapy within different time w...
Source: International Heart Journal - Category: Cardiology Tags: Int Heart J Source Type: research
Conclusions: Up to date, no data about PCIS and IVT are available from RTCs. Based on limited results from retrospective clinical studies and case series, IVT is safer for use in PCIS than in ACIS. Patients with brainstem ischemia, vertebral artery occlusion, and absence of basilar or posterior cerebral artery occlusion could be considered for treatment with IVT even in borderline cases. Time to IVT in PCIS seems to be a less crucial factor than in ACIS. IVT for PCIS may be beneficial even after 4.5 h from symptom onset. Introduction History of Intravenous Thrombolysis—The Most Relevant Studies Intravenous t...
Source: Frontiers in Neurology - Category: Neurology Source Type: research
Emilio Rodríguez-Castro1,2, Manuel Rodríguez-Yáñez1,2, Susana Arias1,2, María Santamaría1,2, Iria López-Dequidt1,2, Ignacio López-Loureiro1, Manuel Rodríguez-Pérez1, Pablo Hervella1, Tomás Sobrino1, Francisco Campos1, José Castillo1* and Ramón Iglesias-Rey1* 1Clinical Neurosciences Research Laboratory, Department of Neurology, Clinical University Hospital, Health Research Institute of Santiago de Compostela (IDIS), Santiago de Compostela, Spain2Stroke Unit, Department of Neurology, Hospital Clínico Universitario, Santiago...
Source: Frontiers in Neurology - Category: Neurology Source Type: research
Johannes Schurig1,2*, Karl Georg Haeusler1,2,3, Ulrike Grittner4,5, Christian H. Nolte1,2, Jochen B. Fiebach1,2, Heinrich J. Audebert1,2, Matthias Endres1,2,5,6 and Andrea Rocco1,2 1Center for Stroke Research Berlin, Charité–Universitätsmedizin Berlin, Berlin, Germany 2Department of Neurology, Charité–Universitätsmedizin Berlin, Berlin, Germany 3Department of Neurology, Universitätsklinikum Würzburg, Würzburg, Germany 4Insitute of Biometry and Clinical Epidemiology, Charité – Universitätsmedizin Berlin, Berlin, Germany 5Berlin Institute of Heal...
Source: Frontiers in Neurology - Category: Neurology Source Type: research
Conclusion: In ischemic stroke or TIA patients with platelet count within normal range, platelet count may be a qualified predictor for long-term recurrent stroke, mortality, and poor functional outcome. Introduction Platelets exert a critical role in the pathogenesis of atherosclerotic complications of cardio-cerebrovascular disease, contributing to thrombus formation, and embolism (1, 2). Previous literature reported that platelets of various size and density are produced by megakaryocytes of different size and stages of maturation in different clinical conditions, suggesting various platelet patterns in differen...
Source: Frontiers in Neurology - Category: Neurology Source Type: research
Treatment options for anticoagulated patients presenting with ischemic stroke are limited. Off-label use of idarucizumab to rapidly reverse the anticoagulant effect of dabigatran may ensure eligibility for thrombolytic therapy with alteplase. This case describes a 77-year-old white male who presented to the hospital 89 minutes after sudden onset of right-sided hemiparesis, dysarthria, and facial palsy. Significant history included atrial fibrillation and previous right-sided cortical stroke. Medication reconciliation revealed he was taking dabigatran 150 mg twice a day, with the last dose being 179 minutes before presentat...
Source: Journal of Neuroscience Nursing - Category: Neuroscience Tags: Case Study Source Type: research
Conclusions: The present study strongly showed that lower GFR is an independently predictor of HT; in addition, large infarct volume, AF, and HA are also important risks of HT for AIS patients without TT, which offered a practical information that risk factors should be paid attention or eliminated to prevent HT for stroke patients though the level of evidence seems to be unstable. PMID: 29998881 [PubMed - in process]
Source: Chinese Medical Journal - Category: General Medicine Authors: Tags: Chin Med J (Engl) Source Type: research
ConclusionsThe presence of atrial fibrillation worsens the patient's prognosis in terms of the functional status and survival during the acute period of stroke in patients treated with intravenous thrombolysis.Higher NIHSS and CHA2DS2VASc scores and reduced EF in patients with stroke treated with thrombolysis are the predictors of unfavorable short-term prognosis.
Source: Polish Journal of Neurology and Neurosurgery - Category: Neurosurgery Source Type: research
ConclusionsOur case report adds to the evidence that idarucizumab administration is safe in the setting of patients with atrial fibrillation treated with dabigatran who develop acute ischemic stroke requiring thrombolysis.
Source: Journal of Medical Case Reports - Category: General Medicine Source Type: research
Conclusions:Endovascular thrombectomy alone appears to be safer than IV-tPA alone in the management of AIS in patients with IE.Disclosure: Dr. Marquardt has nothing to disclose. Dr. Cho has nothing to disclose. Dr. Zhang has nothing to disclose. Dr. Uchino has nothing to disclose. Dr. Wisco has nothing to disclose.
Source: Neurology - Category: Neurology Authors: Tags: Cardiovascular Issues in Ischemic Stroke Source Type: research
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