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Embolic stroke of undetermined source

Scott E Kasner, Pablo Lavados, Mukul Sharma, Yongjun Wang, Yilong Wang, Antoni Dávalos, Nikolay Shamalov, Luis Cunha, Arne Lindgren, Robert Mikulik, Antonio Arauz, Wilfried Lang, Anna Czlonkowska, Jens Eckstein, Rubens Gagliardi, Pierre Amarenco, Sebastián F Ameriso, Turgut Tatlisumak, Roland Veltkamp, Graeme J Hankey, Danilo S Toni, Daniel Bereczki, Shinichiro Uchiyama, George Ntaios, Byung-Woo Yoon, Raf Brouns, M M DeVries Basson, Matthias Endres, Keith Muir, Natan Bornstein, Serefnur Ozturk, Martin O'Donnell, Hardi Mundl, Calin Pater, Jeffrey Weitz, W Frank Peacock, Balakumar Swaminathan, Bodo Kirsch, Scott D Berkowitz, Gary Peters, Guillaume Pare, Ellison Themeles, Ashkan Shoamanesh, Stuart J Connolly, Robert G Hart
BACKGROUND: The New Approach Rivaroxaban Inhibition of Factor Xa in a Global Trial vs. ASA to Prevent Embolism in Embolic Stroke of Undetermined Source (NAVIGATE-ESUS) trial is a randomized phase-III trial comparing rivaroxaban versus aspirin in patients with recent ESUS. AIMS: We aimed to describe the baseline characteristics of this large ESUS cohort to explore relationships among key subgroups. METHODS: We enrolled 7213 patients at 459 sites in 31 countries...
March 7, 2018: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
Z Chen, F Shi, M Zhang, X Gong, L Lin, M Lou
BACKGROUND AND PURPOSE: The multisegment clot sign has been observed at the site of large-artery occlusion in patients with acute ischemic stroke. This study aimed to assess its occurrence rate and relationship with stroke etiologies in patients with acute intracranial large-artery occlusion. MATERIALS AND METHODS: We included consecutive patients with acute ischemic stroke who had acute intracranial large-artery occlusion and underwent perfusion CT within 8 hours after stroke onset...
February 15, 2018: AJNR. American Journal of Neuroradiology
Shadi Yaghi, Andrew D Chang, Peter Hung, Brian Mac Grory, Scott Collins, Ajay Gupta, Jacques Reynolds, Caitlin B Finn, Morgan Hemendinger, Shawna M Cutting, Ryan A McTaggart, Mahesh Jayaraman, Audrey Leasure, Lauren Sansing, Nikhil Panda, Christopher Song, Antony Chu, Alexander Merkler, Gino Gialdini, Kevin N Sheth, Hooman Kamel, Mitchell S V Elkind, David Greer, Karen Furie, Michael Atalay
BACKGROUND: The left atrial appendage (LAA) is the main source of thrombus in atrial fibrillation, and there is an association between non-chicken wing (NCW) LAA morphology and stroke. We hypothesized that the prevalence of NCW LAA morphology would be higher among patients with cardioembolic (CE) stroke and embolic stroke of undetermined source (ESUS) than among those with noncardioembolic stroke (NCS). METHODS: This multicenter retrospective pilot study included consecutive patients with ischemic stroke from 3 comprehensive stroke centers who previously underwent a qualifying chest computed tomography (CT) to assess LAA morphology...
February 2, 2018: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
Caitlin Finn, Peter Hung, Praneil Patel, Ajay Gupta, Hooman Kamel
BACKGROUND AND PURPOSE: Most cryptogenic strokes are thought to have an embolic source. We sought to determine whether cryptogenic strokes are associated with visceral infarcts, which are usually embolic. METHODS: Among patients prospectively enrolled in CAESAR (Cornell Acute Stroke Academic Registry), we selected those with a contrast-enhanced abdominal computed tomographic scan within 1 year of admission. Our exposure variable was adjudicated stroke subtype per the Trial of ORG 10172 in Acute Stroke Treatment classification...
January 25, 2018: Stroke; a Journal of Cerebral Circulation
N Martinez-Majander, K Aarnio, J Pirinen, T Lumikari, T Nieminen, M Lehto, J Sinisalo, M Kaste, T Tatlisumak, J Putaala
BACKGROUND AND PURPOSE: Embolic strokes of undetermined source (ESUS) are a recent entity, not yet thoroughly investigated in young stroke patients. The clinical characteristics and long-term risks of vascular events and all-cause mortality between young-onset ESUS and other aetiological subgroups were compared. METHODS: Patients with ESUS were identified amongst the 1008 patients aged 15-49 years with first-ever ischaemic stroke in Helsinki Young Stroke Registry, and primary end-points were defined as recurrent stroke, composite vascular events and all-cause mortality...
March 2018: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
Hisaki Makimoto, Muhammed Kurt, Michael Gliem, John-Ih Lee, Jan Schmidt, Patrick Müller, Lukas Clasen, Christoph Brinkmeyer, Dong-In Shin, Sebastian Jander, Malte Kelm, Alexander Fürnkranz
BACKGROUND: Subclinical atrial fibrillation is one possible cause of embolic stroke of undetermined source (ESUS). It remains to be elucidated if a specific infarction site has a predictive value for detecting subclinical atrial fibrillation. We aimed to investigate the predictive value of infarction site in patients with ESUS for the detection of atrial tachyarrhythmia (AT) using an insertable cardiac monitor. METHODS AND RESULTS: Consecutive 146 patients (84 men; aged 62±12 years) underwent insertable cardiac monitor implantation after diagnosis of ESUS...
November 29, 2017: Journal of the American Heart Association
Kentaro Ishizuka, Takao Hoshino, Kyomi Ashihara, Kenji Mruyama, Sono Toi, Satoko Mizuno, Yuka Shirai, Nobuhisa Hagiwara, Kazuo Kitagawa
BACKGROUND: This study investigated the associations of mitral and aortic valve calcification with complex aortic atheroma among patients with embolic stroke of undetermined source. METHODS: We included 52 consecutive patients (mean age 58.1 years; 75.0% male) with embolic stroke of undetermined source. Mitral annular calcification, aortic annular calcification, and aortic valve sclerosis were assessed by transthoracic echocardiography. Complex aortic atheroma was assessed by transesophageal echocardiography and was defined as plaque protruding greater than or equal to 4 mm into the lumen or with ulcerated or mobile components...
March 2018: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
Zachary Bulwa, Ajay Gupta
Cryptogenic stroke, or stroke of undetermined cause, presents a remarkably challenging dilemma for the treating physician as there are limited therapeutic options to prevent recurrence. Roughly one third of transient ischemic attacks (TIAs) and ischemic strokes are classified as cryptogenic, with an even greater proportion in young patients. While classification systems have been successfully used in trials to refine therapeutic approaches specific to subtype, there has been little progress made in secondary prevention of cryptogenic stroke...
November 15, 2017: Journal of the Neurological Sciences
Jong-Won Chung, Woo-Keun Seo, Gyeong-Moon Kim, Chin-Sang Chung, Kwang Ho Lee, Oh Young Bang
GOALS: This study aimed to determine whether the plasma levels of free fatty acid (FFA) are associated with ischemic lesion characteristics in nonarterial-origin embolic stroke. MATERIALS AND METHODS: We prospectively recruited 254 patients with acute cerebral infarction caused by cardioembolic stroke (CES, n=121) or with embolic stroke of undetermined source (ESUS, n=133). Plasma levels of FFA were measured during the acute stage (median of 2days after stroke onset)...
November 15, 2017: Journal of the Neurological Sciences
Alexander E Merkler, Gino Gialdini, Santosh B Murthy, Setareh Salehi Omran, Antonio Moya, Michael P Lerario, Ji Chong, Peter M Okin, Jonathan W Weinsaft, Monika M Safford, Matthew E Fink, Babak B Navi, Costantino Iadecola, Hooman Kamel
BACKGROUND: Our aim was to determine whether patients with embolic strokes of undetermined source (ESUS) have higher rates of elevated troponin than patients with noncardioembolic strokes. METHODS AND RESULTS: CAESAR (The Cornell Acute Stroke Academic Registry) prospectively enrolled all adults with acute stroke from 2011 to 2014. Two neurologists used standard definitions to retrospectively ascertain the etiology of stroke, with a third resolving disagreements...
September 22, 2017: Journal of the American Heart Association
Carsten Israel, Alkisti Kitsiou, Malik Kalyani, Sameera Deelawar, Lucy Ekosso Ejangue, Andreas Rogalewski, Christoph Hagemeister, Jens Minnerup, Wolf-Rüdiger Schäbitz
Recently, the clinical entity embolic stroke of undetermined source (ESUS) has been defined for patients with ischemic strokes, where neither a cardioembolic nor a non-cardiac source can be detected. These patients may suffer from asymptomatic atrial fibrillation (AF), terminating spontaneously and thus eluding detection. Implantable loop recorders (ILR) with automatic AF detection algorithms can detect short-lasting, subclinical AF. The aim of this study was to prospectively assess and predict AF detection in patients with ESUS using ILR with daily remote interrogation...
October 5, 2017: Thrombosis and Haemostasis
Carlos Cantú-Brito, Gisele Sampaio Silva, Sebastián F Ameriso
BACKGROUND: Stroke is a major health concern throughout Latin America. As elsewhere, no precise cause can be determined for a substantial portion of strokes. In 6 studies since 2010 in the region, 16% to 43% of ischemic strokes were identified as cryptogenic. The term embolic stroke of undetermined source (ESUS) has been proposed as more clinically useful and positively defined than the vague term cryptogenic. The epidemiology of ESUS in Latin America is largely unknown. REVIEW SUMMARY: This article aims to provide a description of the epidemiology of ESUS in Latin America and practical information regarding available diagnostic procedures and current guidelines...
September 2017: Neurologist
Florian Schöberl, Peter Arthur Ringleb, Reza Wakili, Sven Poli, Frank Arne Wollenweber, Lars Kellert
BACKGROUND: So-called juvenile stroke, i.e., stroke in a person aged 18 to 55, affects approximately 30 000 persons per year in Germany and is thus an important cause of mortality and permanent morbidity. The spectrum of causes of stroke is broader in this age group than in older patients and is also differently distributed. METHODS: This review is based on pertinent publications retrieved by a selective search in PubMed and on current guideline recommendations...
August 7, 2017: Deutsches Ärzteblatt International
Junji Takasugi, Hiroshi Yamagami, Teruo Noguchi, Yoshiaki Morita, Tomotaka Tanaka, Yoshinori Okuno, Satoshi Yasuda, Kazunori Toyoda, Yasufumi Gon, Kenichi Todo, Manabu Sakaguchi, Kazuyuki Nagatsuka
BACKGROUND AND PURPOSE: We aimed to use contrast-enhanced cardiac magnetic resonance (CE-CMR) imaging to elucidate the prevalence of left ventricular (LV) thrombus in patients suspected of embolic stroke of undetermined source (ESUS) with previous myocardial infarction or LV dysfunction (LV ejection fraction [LVEF] <50%). METHODS: We prospectively investigated 797 consecutive patients who presented to our hospital with acute ischemic stroke between 2014 and 2015...
September 2017: Stroke; a Journal of Cerebral Circulation
Maximiliano A Hawkes, Mauricio F Farez, Lucia Pertierra, Maia M Gomez-Schneider, José M Pastor-Rueda, Sebastián F Ameriso
Background and purpose Identifying embolic strokes of undetermined source (ESUS) patients likely to harbor atrial fibrillation may have diagnostic and therapeutic implications. Our aim was to examine differences between ESUS and cardioembolic strokes, to evaluate stroke recurrence rate among ESUS and to identify baseline characteristics of ESUS patients who were later diagnosed with atrial fibrillation. Materials and methods We assessed all ischemic stroke patients admitted between June 2012 and November 2013...
January 1, 2017: International Journal of Stroke: Official Journal of the International Stroke Society
Yuya Kobayashi, Hiroyuki Yahikozawa, Ryota Takamatsu, Rie Watanabe, Kenichi Hoshi, Wataru Ishii, Shunichi Sato
Cerebral embolism is typically caused by a cardiogenic thrombus. The patent foramen ovale is a well-known cause of paradoxical embolism. However, some idiopathic cases of stroke have been reported. Such strokes are designated as embolic stroke of undetermined sources. Among them, lung lobectomy may be a new embolic risk factor for cerebral embolism. The risk of thrombus formation is high at the pulmonary vein stump after lung lobectomy, especially in the left upper lobe. Interestingly, the risk remains several years after surgery...
September 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
Pierre Amarenco, Gregory W Albers, Hans Denison, J Donald Easton, Scott R Evans, Peter Held, Michael D Hill, Jenny Jonasson, Scott E Kasner, Per Ladenvall, Kazuo Minematsu, Carlos A Molina, Yongjun Wang, K S Lawrence Wong, S Claiborne Johnston
BACKGROUND AND PURPOSE: Ticagrelor is an effective antiplatelet therapy among patients with atherosclerotic disease and, therefore, could be more effective than aspirin in preventing recurrent stroke and cardiovascular events among patients with embolic stroke of unknown source (ESUS), which includes patients with ipsilateral stenosis <50% and aortic arch atherosclerosis. METHODS: We randomized 13 199 patients with a noncardioembolic, nonsevere ischemic stroke or high-risk transient ischemic attack to ticagrelor (180 mg loading dose on day 1 followed by 90 mg twice daily for days 2-90) or aspirin (300 mg on day 1 followed by 100 mg daily for days 2-90) within 24 hours of symptom onset...
September 2017: Stroke; a Journal of Cerebral Circulation
Hans-Christoph Diener, Richard Bernstein, Robert Hart
PURPOSE OF THE REVIEW: The purpose of the study was to review the literature on cryptogenic stroke and embolic stroke of undetermined stroke (ESUS). Cryptogenic stroke according to TOAST criteria is a stroke which is not due to cardiogenic embolism, small vessel disease with lacunes or large vessel disease of brain supplying arteries. In the context of secondary stroke prevention studies, cryptogenic stroke is not operationally defined. RECENT FINDINGS: The new concept of "embolic stroke of undetermined source" (ESUS) provides an operational definition...
September 2017: Current Neurology and Neuroscience Reports
George Ntaios, Gregory Y H Lip, Konstantinos Vemmos, Eleni Koroboki, Efstathios Manios, Anastasia Vemmou, Ana Rodríguez-Campello, Elisa Cuadrado-Godia, Jaume Roquer, Valentina Arnao, Valeria Caso, Maurizio Paciaroni, Exuperio Diez-Tejedor, Blanca Fuentes, Josefa Pérez Lucas, Antonio Arauz, Sebastian F Ameriso, Lucía Pertierra, Maia Gómez-Schneider, Maximiliano A Hawkes, Fabio Bandini, Beatriz Chavarria Cano, Ana Maria Iglesias Mohedano, Andrés García Pastor, Antonio Gil-Núñez, Jukka Putaala, Turgut Tatlisumak, Miguel A Barboza, George Athanasakis, Fotios Gioulekas, Konstantinos Makaritsis, Vasileios Papavasileiou
OBJECTIVE: To investigate whether the correlation of age and sex with the risk of recurrence and death seen in patients with previous ischemic stroke is also evident in patients with embolic stroke of undetermined source (ESUS). METHODS: We pooled datasets of 11 stroke registries from Europe and America. ESUS was defined according to the Cryptogenic Stroke/ESUS International Working Group. We performed Cox regression and Kaplan-Meier product limit analyses to investigate whether age (<60, 60-80, >80 years) and sex were independently associated with the risk for ischemic stroke/TIA recurrence or death...
August 8, 2017: Neurology
Andreas Charidimou
No abstract text is available yet for this article.
July 7, 2017: Neurology
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