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Cardioembolism

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https://www.readbyqxmd.com/read/28626057/abnormal-p-wave-axis-and-ischemic-stroke-the-aric-study-atherosclerosis-risk-in-communities
#1
Ankit Maheshwari, Faye L Norby, Elsayed Z Soliman, Ryan J Koene, Mary R Rooney, Wesley T O'Neal, Alvaro Alonso, Lin Y Chen
BACKGROUND AND PURPOSE: Abnormal P-wave axis (aPWA) has been linked to incident atrial fibrillation and mortality; however, the relationship between aPWA and stroke has not been reported. We hypothesized that aPWA is associated with ischemic stroke independent of atrial fibrillation and other stroke risk factors and tested our hypothesis in the ARIC study (Atherosclerosis Risk In Communities), a community-based prospective cohort study. METHODS: We included 15 102 participants (aged 54...
June 16, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28626055/ischemic-stroke-what-does-the-histological-composition-tell-us-about-the-origin-of-the-thrombus
#2
Peter B Sporns, Uta Hanning, Wolfram Schwindt, Aglaé Velasco, Jens Minnerup, Tarek Zoubi, Walter Heindel, Astrid Jeibmann, Thomas Ulrich Niederstadt
BACKGROUND AND PURPOSE: The introduction of stent retrievers allows for a complete extraction and histological analysis of human thrombi. Ischemic stroke is a major health issue, and differentiation of underlying causes is highly relevant to prevent recurrent stroke. Therefore, histopathologic analysis of the embolic clots after removal may provide valuable information about underlying pathologies. This study analyzes histological clot composition and aims to identify specific patterns that might help to distinguish causes of ischemic stroke...
June 16, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28611827/repeated-mechanical-thrombectomy-in-recurrent-large-vessel-occlusion-acute-ischemic-stroke
#3
Mehdi Bouslama, Diogo C Haussen, Leticia C Rebello, Jonathan A Grossberg, Michael R Frankel, Raul G Nogueira
BACKGROUND: Endovascular therapy has been proven effective for the treatment of large vessel occlusion strokes (LVOS). However, the feasibility and potential benefits of repeat thrombectomy for recurrent stroke is unclear. We aim to report our experience with repeat thrombectomy for recurrent LVOS. METHODS: We reviewed our prospectively collected endovascular database for patients who underwent repeated mechanical thrombectomy. Baseline characteristics, procedural data and outcomes were evaluated...
March 2017: Interventional Neurology
https://www.readbyqxmd.com/read/28608185/substitutions-of-dairy-product-intake-and-risk-of-stroke-a-danish-cohort-study
#4
Anne Sofie Dam Laursen, Christina Catherine Dahm, Søren Paaske Johnsen, Anne Tjønneland, Kim Overvad, Marianne Uhre Jakobsen
Low fat dairy products are part of dietary guidelines to prevent stroke. However, epidemiological evidence is inconclusive with regard to the association between dairy products and stroke. We therefore investigated associations for substitutions between dairy product subgroups and risk of total stroke and stroke subtypes. We included 55,211 Danish men and women aged 50-64 years without previous stroke. Baseline diet was assessed by a food frequency questionnaire. Cases were identified through a national register and subsequently verified...
June 12, 2017: European Journal of Epidemiology
https://www.readbyqxmd.com/read/28604188/correlation-between-clot-density-and-recanalization-success-or-stroke-etiology-in-acute-ischemic-stroke-patients
#5
Manoj Jagani, David F Kallmes, Waleed Brinjikji
Background Predicting recanalization success for patients undergoing endovascular treatment for acute ischemic stroke is of significant interest. Studies have previously correlated the success of recanalization with the density of the clot. We evaluated clot density and its relationship to revascularization success and stroke etiology. Methods We conducted a retrospective review of 118 patients undergoing intra-arterial therapy for acute ischemic stroke. Mean and maximum thrombus density was measured by drawing a circular region of interest on an axial slice of a non-contrast computed tomography scan...
June 2017: Interventional Neuroradiology
https://www.readbyqxmd.com/read/28603589/empirical-anticoagulation-for-patients-in-sinus-rhythm-at-high-risk-of-ischaemic-stroke-a-review-of-current-literature
#6
REVIEW
Irma Battipaglia, James O'Neill, Andrew J Hogarth, Muzahir H Tayebjee
Ischaemic stroke is one of the commonest causes of morbidity and mortality worldwide and around a fifth of events can be attributed to a cardioembolic source. This is typically due to atrial fibrillation (AF), the most common sustained cardiac arrhythmia. However, AF can, at times, be difficult to detect due to a relative lack of symptoms and the fact that it can be paroxysmal in nature. Studies have shown that diagnosis of AF improves as the length of cardiac monitoring increases. However, prolonged cardiac monitoring is not a cost-effective way of diagnosing AF...
May 26, 2017: World Journal of Cardiology
https://www.readbyqxmd.com/read/28596467/-embolic-stroke-of-undetermined-source
#7
Teruyuki Hirano
A new clinical construct, embolic stroke of undetermined source (ESUS) was established as a therapeutically relevant entity, which are defined as a non-lacunar infarction without proximal arterial stenosis or cardioembolic sources, with a clear indication for anticoagulation, especially with direct oral anticoagulant (DOAC). The possible embolic sources include covert atrial fibrillation, arterial stenosis with <50%, low-risk emboligenic cardiac sources, aortic plaque, cancer-associated, and paradoxical embolism...
June 2017: Brain and Nerve, Shinkei Kenkyū No Shinpo
https://www.readbyqxmd.com/read/28596225/increased-warfarin-requirements-in-a-patient-with-chronic-hepatitis-c-infection-receiving-sofosbuvir-and-ribavirin
#8
Daisy Peterson, Amy Van Ermen
PURPOSE: A case of increased warfarin requirements during treatment with sofosbuvir and ribavirin for chronic hepatitis C virus (HCV) infection is reported. SUMMARY: A 63-year-old white man receiving long-term anticoagulation with warfarin for atrial fibrillation and a history of cardioembolic stroke was initiated in September 2014 on a 12-week course of sofosbuvir 400 mg orally daily and weight-based ribavirin 600 mg orally twice daily for HCV genotype 2 infection...
June 15, 2017: American Journal of Health-system Pharmacy: AJHP
https://www.readbyqxmd.com/read/28591388/incidence-and-functional-outcome-of-atrial-fibrillation-and-non-atrial-fibrillation-related-cardioembolic-stroke-in-joinville-brazil-a-population-based-study
#9
Claudio Henrique do Amaral, Augusto R Amaral, Vivian Nagel, Vanessa Venancio, Adriana Coronetti Garcia, Pedro Sc Magalhaes, Alexandre L Longo, Carla Hc Moro, Felipe I Reis, Andre D'Avila, Norberto L Cabral
Among ischemic strokes, cardioembolic (CE) stroke has the worst outcome. We measured the incidence of atrial fibrillation (AF) and non-AF related CE strokes, previous anticoagulant use, and the 90-day functional outcome. Using multiple overlapping sources, we included all CE strokes that occurred in 2015 in Joinville, Brazil. Of the 374 ischemic strokes, 23% (84) were CE. The CE age-adjusted incidence, per 1,000 person-years, was 0.14 (0.11-0.17). Of the 26 patients with known prior AF, 73% (19) were not anticoagulated, 77% (20) had a CHA2DS2VASc score ≥ 3 and 81% (21) had a HAS-BLED score < 3...
May 2017: Arquivos de Neuro-psiquiatria
https://www.readbyqxmd.com/read/28584000/ischemic-amnesia-causes-and-outcome
#10
Patrik Michel, Valérie Beaud, Ashraf Eskandari, Philippe Maeder, Jean-François Demonet, Elissavet Eskioglou
BACKGROUND AND PURPOSE: We aimed to describe the frequency and characteristics of acute ischemic stroke and transient ischemic attacks presenting predominantly with amnesia (ischemic amnesia) and to identify clinical clues for differentiating them from transient global amnesia (TGA). METHODS: We retrospectively analyzed and described all patients presenting with diffusion-weighted imaging magnetic resonance imaging-confirmed acute ischemic stroke/transient ischemic attacks with antero- and retrograde amnesia as the main symptom over a 13...
June 5, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28579022/erratum-to-clinical-characteristics-of-cardioembolic-transient-ischemic-attack-comparison-with-non-cardioembolic-transient-ischemic-attack-journal-of-stroke-cerebrovascular-diseases-2014-23-82169-82173
#11
(no author information available yet)
No abstract text is available yet for this article.
May 31, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28572721/outcome-of-stroke-patients-receiving-different-doses-of-recombinant-tissue-plasminogen-activator
#12
Cheung-Ter Ong, Yi-Sin Wong, Chi-Shun Wu, Yu-Hsiang Su
BACKGROUND AND PURPOSE: Intravenous recombinant tissue plasminogen activator (tPA) at a dose of 0.9 mg/kg body weight is associated with a high hemorrhagic transformation (HT) rate. Low-dose tPA (0.6 mg/kg) may have a lower hemorrhage rate but the mortality and disability rates at 90 days cannot be confirmed as non-inferior to standard-dose tPA. Whether the doses 0.7 and 0.8 mg/kg have better efficacy and safety needs further investigation. Therefore, this study is to compare the efficacy and safety of each dose of tPA (0...
2017: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/28566189/association-between-leukoaraiosis-and-hemorrhagic-transformation-after-cardioembolic-stroke-due-to-atrial-fibrillation-and-or-rheumatic-heart-disease
#13
Chen-Chen Wei, Shu-Ting Zhang, Yun-Han Wang, Jun-Feng Liu, Jie Li, Ruo-Zhen Yuan, Ge Tan, Shi-Hong Zhang, Ming Liu
Cardioembolic stroke due to atrial fibrillation (AF) and/or rheumatic heart disease (RHD) often involves hemorrhagic transformation (HT), and we examined whether leukoaraiosis (LA) was associated with HT in these cases. We prospectively enrolled 251 patients who were admitted to two hospitals within one month of experiencing cardioembolic stroke due to AF/RHD. LA severity was assessed using three visual rating scales. HT was identified in 99 patients (39.4%) based on baseline computed tomography (CT) and post-admission magnetic resonance imaging or second CT...
July 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28544117/increased-expression-of-stim1-orai1-in-platelets-of-stroke-patients-predictive-of-poor-outcomes
#14
M Dong, N Zheng, L J Ren, H Zhou, J Liu
BACKGROUND AND PURPOSE: The platelet activation that is mediated by store-operated Ca(2+) entry via stromal interaction molecule (STIM1) and Orai1 Ca(2+) influx channels has been shown to play a key role in ischaemic stroke (IS). This study aimed to evaluate the impact of platelet STIM1/Orai1 protein expression on outcomes of IS. METHODS: A total of 160 patients with acute non-cardioembolic IS, among whom 45 patients had small-vessel diseases and 115 patients had large-vessel diseases, were evaluated...
May 23, 2017: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/28536667/association-between-embolic-stroke-patterns-esus-etiology-and-new-diagnosis-of-atrial-fibrillation-a-secondary-data-analysis-of-the-find-af-trial
#15
Ilko L Maier, Katharina Schregel, André Karch, Mark Weber-Krueger, Rafael T Mikolajczyk, Raoul Stahrenberg, Klaus Gröschel, Mathias Bähr, Michael Knauth, Marios-Nikos Psychogios, Rolf Wachter, Jan Liman
Background. Atrial fibrillation (AF) is an important cause of embolic stroke of undetermined source (ESUS). Imaging-patterns like multiple infarcts, simultaneous involvement of different circulations, infarcts of different ages, and isolated cortical infarcts are likely to indicate cardioembolic stroke. The aim of our study was to evaluate the association between embolic stroke patterns, ESUS, and the new diagnosis of AF. Methods. Stroke etiology and imaging characteristics from patients included in the Find-AF study were obtained...
2017: Stroke Research and Treatment
https://www.readbyqxmd.com/read/28523236/left-atrial-size-and-risk-of-recurrent-ischemic-stroke-in-a-chinese-population
#16
Jie Xue, Yuanshao Lin, Wensi Huang, Xiaoli Chen, Qian Li, Zhengyi Cai, Wanli Zhang, Yuansheng Ye, Bei Shao
BACKGROUND: Although a number of studies have reported the role of an increased left atrial (LA) size on stroke, limited data are collected about the relationship between LA enlargement and recurrent ischemic stroke in the Chinese population. Our aim was to assess the association of LA size with the risk of stroke recurrence, particularly with recurrent cardioembolic or cryptogenic stroke in ischemic stroke patients. METHODS: The study recruited 313 consecutive patients with acute first-ever ischemic stroke...
May 2017: Brain and Behavior
https://www.readbyqxmd.com/read/28522230/cortical-microinfarcts-in-patients-with-middle-cerebral-artery-stenosis
#17
Xinyi Leng, Hui Fang, Yuehua Pu, Xinying Zou, Yuesong Pan, Yannie O Y Soo, Yuming Xu, Chunxue Wang, Xingquan Zhao, Yilong Wang, Yongjun Wang, David S Liebeskind, Lawrence K S Wong, Thomas W Leung, Liping Liu
BACKGROUND: Cortical microinfarcts (CMIs) have been correlated to cognitive decline and dementia. It was previously considered only visible on microscope, but was recently reported to be visible on 3.0 Tesla magnetic resonance imaging (MRI) and linked to presence of intracranial stenosis. We aimed to investigate CMIs on 3.0 Tesla MRI in patients with M1 middle cerebral artery (MCA-M1) stenosis. METHODS: Patients with a recent non-cardioembolic ischemic stroke or transient ischemic attack and an atherosclerotic MCA-M1 stenosis were recruited...
May 15, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28515342/clinical-presentations-and-epidemiology-of-vascular-dementia
#18
REVIEW
Eric E Smith
Cerebrovascular and cardiovascular diseases cause vascular brain injury that can lead to vascular cognitive impairment (VCI). VCI is the second most common neuropathology of dementia and mild cognitive impairment (MCI), accounting for up to one-third of the population risk. It is frequently present along with other age-related pathologies such as Alzheimer's disease (AD). Multiple etiology dementia with both VCI and AD is the single most common cause of later life dementia. There are two main clinical syndromes of VCI: post-stroke VCI in which cognitive impairment is the immediate consequence of a recent stroke and VCI without recent stroke in which cognitive impairment is the result of covert vascular brain injury detected only on neuroimaging or neuropathology...
June 1, 2017: Clinical Science (1979-)
https://www.readbyqxmd.com/read/28505525/thrombin-generation-and-intracranial-atherosclerotic-disease-in-patients-with-a-transient-ischaemic-attack
#19
Elisabetta Favaretto, Michelangelo Sartori, Cristina Legnani, Francesca Rondelli, Michela Cini, Maria Guarino, Benilde Cosmi
BACKGROUND: Intracranial atherosclerotic disease (ICAD) is responsible for at least 10% of transient ischaemic attacks (TIA). Thrombin generation has been shown to be associated with several atherosclerotic conditions and may be relevant in the pathogenesis of TIA from ICAD. OBJECTIVE: To evaluate the association between thrombin generation and ICAD in patients with TIA. MATERIALS AND METHODS: Consecutive patients with confirmed diagnosis of TIA by vascular neurologist were enrolled...
May 9, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/28502918/ability-of-the-ankle-brachial-index-and-brachial-ankle-pulse-wave-velocity-to-predict-the-3-month-outcome-in-patients-with-non-cardioembolic-stroke
#20
Hayato Matsushima, Naohisa Hosomi, Naoyuki Hara, Takeshi Yoshimoto, Shuichiro Neshige, Ryuhei Kono, Takahiro Himeno, Shinichi Takeshima, Kazuhiro Takamatsu, Yutaka Shimoe, Taisei Ota, Hirofumi Maruyama, Toshiho Ohtsuki, Masaru Kuriyama, Masayasu Matsumoto
AIM: Both the ankle brachial index (ABI) and brachial-ankle pulse wave velocity (baPWV) are surrogates for atherosclerosis. In this study, we aimed to evaluate the ability of ABI and baPWV to predict stroke outcome in patients with first-ever non-cardioembolic stroke. METHODS: This study included consecutive patients with first-ever non-cardioembolic stroke admitted within 1 week after onset to Ota Memorial Hospital between January 2011 and December 2013. Baseline characteristics and National Institutes of Health stroke scale scores at admission were noted...
May 15, 2017: Journal of Atherosclerosis and Thrombosis
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