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Condition: Atrial Fibrillation
Procedure: MRI Scan

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Total 412 results found since Jan 2013.

Early Rivaroxaban Use After Cardioembolic Stroke May Not Result in Hemorrhagic Transformation: A Prospective Magnetic Resonance Imaging Study Brief Reports
Conclusions— These data support the safety of rivaroxaban initiation ≤14 days of mild–moderate cardioembolic stroke/transient ischemic attack. Magnetic resonance imaging evidence of petechial HT, which is common, does not appear to increase the risk of symptomatic HT.
Source: Stroke - June 26, 2016 Category: Neurology Authors: Gioia, L. C., Kate, M., Sivakumar, L., Hussain, D., Kalashyan, H., Buck, B., Bussiere, M., Jeerakathil, T., Shuaib, A., Emery, D., Butcher, K. Tags: Ischemic Stroke, Transient Ischemic Attack (TIA) Brief Reports Source Type: research

Patients With Undetermined Stroke Have Increased Atrial Fibrosis Brief Report
Conclusions—The LA phenotype that was found in patients with undetermined cause supports the hypothesis that an atrial disease may be associated with stroke.
Source: Stroke - February 26, 2018 Category: Neurology Authors: Ana Catarina Fonseca, Pedro Alves, Nuno Inacio, Joao Pedro Marto, Miguel Viana–Baptista, Teresa Pinho–e–Melo, Jose M. Ferro, Ana G. Almeida Tags: Magnetic Resonance Imaging (MRI), Ischemic Stroke, Embolism Brief Reports Source Type: research

Effect of Right Insular Involvement on Death and Functional Outcome After Acute Ischemic Stroke in the IST-3 Trial (Third International Stroke Trial) Clinical Sciences
Conclusions—We found an association between right insular involvement and higher odds of death and worse functional outcome. The difference between right- and left-sided insular lesions on outcomes seemed to be most evident for mild/moderate strokes.Clinical Trial Registration—URL: http://www.isrctn.com. Unique identifier: ISRCTN25765518.
Source: Stroke - November 27, 2016 Category: Neurology Authors: Luciano A. Sposato, Geoffrey Cohen, Joanna M. Wardlaw, Peter Sandercock, Richard I. Lindley, Vladimir Hachinski, on behalf of the IST-3 Expert Reading Panel and the IST-3 Collaborative Group Tags: Computerized Tomography (CT), Magnetic Resonance Imaging (MRI), Mortality/Survival, Ischemic Stroke Original Contributions Source Type: research

Ischemic Stroke Phenotype in Patients With Nonsustained Atrial Fibrillation Clinical Sciences
Conclusions— Clinical features of patients with nonsustained AF exhibited an intermediary phenotype in between patients with persistent/paroxysmal AF and no AF. Furthermore, imaging features did not entirely resemble patterns observed in patients with longer durations of AF.
Source: Stroke - February 23, 2015 Category: Neurology Authors: Arsava, E. M., Bas, D. F., Atalar, E., Has, A. C., Oguz, K. K., Topcuoglu, M. A. Tags: Electrocardiology, Acute Cerebral Infarction, Arrhythmias, clinical electrophysiology, drugs, Embolic stroke, Computerized tomography and Magnetic Resonance Imaging Clinical Sciences Source Type: research

Structural Integrity of Normal Appearing White Matter and Sex-Specific Outcomes After Acute Ischemic Stroke Brief Report
Background and Purpose—Women have worse poststroke outcomes than men. We evaluated sex-specific clinical and neuroimaging characteristics of white matter in association with functional recovery after acute ischemic stroke.Methods—We performed a retrospective analysis of acute ischemic stroke patients with admission brain MRI and 3- to 6-month modified Rankin Scale score. White matter hyperintensity and acute infarct volume were quantified on fluid-attenuated inversion recovery and diffusion tensor imaging MRI, respectively. Diffusivity anisotropy metrics were calculated in normal appearing white matter contralateral to...
Source: Stroke - November 27, 2017 Category: Neurology Authors: Mark R. Etherton, Ona Wu, Pedro Cougo, Anne-Katrin Giese, Lisa Cloonan, Kaitlin M. Fitzpatrick, Allison S. Kanakis, Gregoire Boulouis, Hasan H. Karadeli, Arne Lauer, Jonathan Rosand, Karen L. Furie, Natalia S. Rost Tags: Magnetic Resonance Imaging (MRI), Ischemic Stroke Brief Reports Source Type: research

FABS: An Intuitive Tool for Screening of Stroke Mimics in the Emergency Department Clinical Sciences
Conclusions— FABS seems to be reliable in stratifying SM from acute cerebral ischemia cases among patients in whom the head computed tomography was negative for any acute findings. It can help clinicians consider advanced imaging for further diagnosis.
Source: Stroke - August 21, 2016 Category: Neurology Authors: Goyal, N., Tsivgoulis, G., Male, S., Metter, E. J., Iftikhar, S., Kerro, A., Chang, J. J., Frey, J. L., Triantafyllou, S., Papadimitropoulos, G., Abedi, V., Alexandrov, A. W., Alexandrov, A. V., Zand, R. Tags: Ischemic Stroke Clinical Sciences Source Type: research

Risk Factors and Cognitive Relevance of Cortical Cerebral Microinfarcts in Patients With Ischemic Stroke or Transient Ischemic Attack Clinical Sciences
Conclusions— Cortical CMIs are a common finding in patients with stroke/transient ischemic attack. Associations between CMI with atrial fibrillation and white matter hyperintensities suggest that these lesions have a heterogeneous cause, involving microembolism and cerebral small vessel disease. CMI seemed to preferentially impact visuospatial functions as assessed by a cognitive screening test.
Source: Stroke - September 25, 2016 Category: Neurology Authors: Wang, Z., van Veluw, S. J., Wong, A., Liu, W., Shi, L., Yang, J., Xiong, Y., Lau, A., Biessels, G. J., Mok, V. C. T. Tags: Cognitive Impairment, Ischemic Stroke Clinical Sciences Source Type: research

Microbleed Status and 3-Month Outcome After Intravenous Thrombolysis in 717 Patients With Acute Ischemic Stroke Clinical Sciences
Conclusions— Poor outcome or sICH was not associated with CMB presence or burden on pre–intravenous thrombolysis magnetic resonance imaging after adjustment for confounding factors. An individual patient data meta-analysis is needed to determine whether a subgroup of patients with CMBs carries an independent risk of poor outcome that might outweigh the expected benefit of intravenous thrombolysis.
Source: Stroke - August 24, 2015 Category: Neurology Authors: Turc, G., Sallem, A., Moulin, S., Tisserand, M., Machet, A., Edjlali, M., Baron, J.-C., Leclerc, X., Leys, D., Mas, J.-L., Cordonnier, C., Oppenheim, C. Tags: Acute Cerebral Infarction, Emergency treatment of Stroke, Computerized tomography and Magnetic Resonance Imaging, Intracerebral Hemorrhage, Thrombolysis Clinical Sciences Source Type: research

Worse stroke outcome in atrial fibrillation is explained by more severe hypoperfusion, infarct growth, and hemorrhagic transformation
ConclusionAtrial fibrillation is associated with greater volumes of more severe baseline hypoperfusion, leading to higher infarct growth, more frequent severe hemorrhagic transformation and worse stroke outcomes.
Source: International Journal of Stroke - March 12, 2013 Category: Neurology Authors: Hans T. H. Tu, Bruce C. V. Campbell, Soren Christensen, Patricia M. Desmond, Deidre A. De Silva, Mark W. Parsons, Leonid Churilov, Maarten G. Lansberg, Michael Mlynash, Jean‐Marc Olivot, Matus Straka, Roland Bammer, Gregory W. Albers, Geoffrey A. Donnan Tags: Research Source Type: research

Stroke Risk Factors, Subtypes, and 30-Day Case Fatality in Abuja, Nigeria (P1.121)
CONCLUSIONS: Although hypertension, obesity, diabetes mellitus, and atrial fibrillation were important stroke risk factors, in many patients, these were detected only after a stroke. While the commonest stroke subtype was cerebral infarction, observed in almost two-third of patients, SAH was associated with the highest case-fatality rate at 30 days of 44.4%. Larger population-based studies are planned.Study Supported by: nilDisclosure: Dr. Bwala has nothing to disclose.
Source: Neurology - April 9, 2014 Category: Neurology Authors: Bwala, S. Tags: Cerebrovascular Disease and Interventional Neurology: Ischemic Stroke Subtype Source Type: research

Discrimination of Acute Ischemic Stroke from Nonischemic Vertigo in Patients Presenting with Only Imbalance
We examined 332 consecutive patients with an acute feeling of imbalance who showed no neurologic findings or responsible lesions on CT scan at the hyperacute phase. We examined their clinical backgrounds, physical findings, and laboratory examinations, with ischemic stroke diagnosed by later CT and/or magnetic resonance imaging (MRI). We identified 41 (12.3%) ischemic stroke patients. Atrial fibrillation (odds ratio 4.1; 95% confidence interval 1.4-11.5), white blood cell count (103/μL, 1.4; 1.2-1.6), head and/or neck pain (4.6; 2.1-10.3), first attack of imbalance feeling (3.3; 1.1-12.2), and dizziness (3.7; 1.7-8.3) wer...
Source: Journal of Stroke and Cerebrovascular Diseases - October 10, 2013 Category: Neurology Authors: Shoji Honda, Yuichiro Inatomi, Toshiro Yonehara, Yoichiro Hashimoto, Teruyuki Hirano, Yukio Ando, Makoto Uchino Tags: Original Articles Source Type: research

Dabigatran Therapy in Acute Ischemic Stroke Patients Without Atrial Fibrillation Brief Reports
Conclusions— Dabigatran treatment within 24 hours of minor stroke is feasible. A larger randomized trial is required to confirm the safety and efficacy of this treatment approach. Clinical Trial Registration— URL: http://www.clinicaltrials.gov. Unique identifier: NCT 01769703.
Source: Stroke - August 24, 2015 Category: Neurology Authors: Kate, M., Gioia, L., Buck, B., Sivakumar, L., Jeerakathil, T., Shuaib, A., Butcher, K. Tags: Anticoagulants Brief Reports Source Type: research

High Detection Rate of Atrial Fibrillation With Insertable Cardiac Monitor Implantation in Patients With Cryptogenic Stroke Diagnosed by Magnetic Resonance Imaging
Background: Detection and treatment of atrial fibrillation (AF) is a major goal in preventing secondary stroke. Insertable cardiac monitors (ICMs) are available for diagnosis of arrhythmia monitoring in patients with cryptogenic stroke. Magnetic resonance imaging (MRI)-based diagnostic evaluation for acute ischemic stroke subtype classification is common in Japan and can be useful for specific diagnosis of cryptogenic stroke. Purpose: We aimed to investigate the detection rate of AF with an ICM in patients with cryptogenic stroke who were diagnosed by MRI.
Source: Journal of Stroke and Cerebrovascular Diseases - June 20, 2019 Category: Neurology Authors: Tomonori Iwata, Kenichi Todo, Hiroshi Yamagami, Masafumi Morimoto, Tetsuya Hashimoto, Ryosuke Doijiri, Hiroyuki Furuya Source Type: research

Atrial Fibrillation and Cognitive Decline-The Role of Subclinical Cerebral Infarcts: The Atherosclerosis Risk in Communities Study Clinical Sciences
Conclusions— The association of incident AF with cognitive decline in stroke-free individuals can be explained by the presence or development of SCIs, raising the possibility of anticoagulation as a strategy to prevent cognitive decline in AF.
Source: Stroke - August 25, 2014 Category: Neurology Authors: Chen, L. Y., Lopez, F. L., Gottesman, R. F., Huxley, R. R., Agarwal, S. K., Loehr, L., Mosley, T., Alonso, A. Tags: Cerebrovascular disease/stroke, Arrhythmias, clinical electrophysiology, drugs, Computerized tomography and Magnetic Resonance Imaging, Epidemiology Clinical Sciences Source Type: research

The Clinical Relevance of Microbleeds in Stroke study (CROMIS‐2): rationale, design, and methods
Background and rationaleThe increasing use of oral anticoagulants, mostly to prevent ischemic stroke due to atrial fibrillation in an ageing population, has been associated with a fivefold increased incidence of oral anticoagulant‐associated intracerebral hemorrhage: a rare, serious, and unpredictable complication. We hypothesize that cerebral microbleeds and other markers of cerebral small vessel disease on magnetic resonance imaging, and genetic polymorphisms (e.g. influencing cerebral small vessel integrity or anticoagulation stability), are associated with an increased risk of oral anticoagulant‐associated intracer...
Source: International Journal of Stroke - August 2, 2015 Category: Neurology Authors: Andreas Charidimou, Duncan Wilson, Clare Shakeshaft, Gareth Ambler, Mark White, Hannah Cohen, Tarek Yousry, Rustam Al‐Shahi Salman, Gregory Lip, Henry Houlden, Hans R. Jäger, Martin M. Brown, David J. Werring Tags: Protocol Source Type: research