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Cerebrovascular Diseases

Markus Kneihsl, Christian Enzinger, Kurt Niederkorn, Gerit Wünsch, Lisa Müller, Valeriu Culea, Andreas Lueger, Franz Fazekas, Thomas Gattringer
BACKGROUND: Stroke has become a treatable condition with increasing evidence of treatment benefits in older people. However, stroke mimics in geriatric patients are especially prevalent, causing incorrect suspicion and consecutive burden to patients and emergency room resources. We therefore examined the dimension of this problem by investigating emergency room admissions from nursing homes for suspected stroke. METHODS: We performed a retrospective cohort study of all nursing home residents who were admitted to the neurological emergency room of our primary and tertiary care university hospital between 2013 and 2015...
March 14, 2018: Cerebrovascular Diseases
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March 14, 2018: Cerebrovascular Diseases
Sonja Suntrup-Krueger, Jens Minnerup, Paul Muhle, Inga Claus, Jens Burchard Schröder, Thomas Marian, Tobias Warnecke, Marianne Kalic, Klaus Berger, Rainer Dziewas
BACKGROUND: Early dysphagia screening and appropriate management are recommended by current guidelines to reduce complications and case fatality in acute stroke. However, data on the potential benefit of changes in dysphagia care on patient outcome are limited. Our objective was to assess the degree of implementation of dysphagia guidelines and determine the impact of modifications in dysphagia screening and treatment practices on disease complications and outcome in stroke patients over time...
March 13, 2018: Cerebrovascular Diseases
Matthew B Bevers, Thomas W K Battey, Ann-Christin Ostwaldt, Reza Jahan, Jeffrey L Saver, W Taylor Kimberly, Chelsea S Kidwell
BACKGROUND: Apparent diffusion coefficient (ADC) imaging is a biomarker of cytotoxic injury that predicts edema formation and outcome after ischemic stroke. It therefore has the potential to serve as a "tissue clock" to describe the extent of ischemic injury and potentially predict response to therapy. The goal of this study was to determine the relationship between baseline ADC signal intensity, revascularization, and edema formation. METHODS: We examined the ADC signal intensity ratio (ADCr) of the stroke lesion (defined as the baseline DWI hyperintense region) compared to the contralateral normal hemisphere in 65 subjects from the Mechanical Retrieval and Recanalization of Stroke Clots Using Embolectomy trial...
March 13, 2018: Cerebrovascular Diseases
Ruud C Van Kaam, Michel J A M van Putten, Sarah E Vermeer, Jeannette Hofmeijer
BACKGROUND: The noninjured, contralateral hemisphere is increasingly acknowledged in the process of recovery from acute ischemic stroke. We estimated the value of conventional electroencephalography (EEG) recordings for identifying contralateral hemisphere involvement in relation to functional recovery. METHODS: We analyzed 2-min epochs from 21 electrode EEG registrations of 18 patients with acute hemispheric ischemic stroke and compared with 18 age-matched controls...
March 6, 2018: Cerebrovascular Diseases
Danilo S Silva, Wagner M Avelar, Brunno M de Campos, Ana Paula B L Lino, Márcio L F Balthazar, Marcio J O Figueiredo, Fernando Cendes, Ana Carolina Coan
BACKGROUND: Atrial fibrillation (AF) is a widely accepted risk for causing stroke. However, recent studies show AF as a risk factor for dementia, even without causing stroke. The mechanisms by which dementia develops in stroke-free patients with AF are still poorly understood and the association of AF with abnormal function of brain networks activities, such as the default mode network (DMN), has not been previously studied. We aimed to determine whether, in the absence of stroke and dementia, patients with AF have abnormal resting-state brain networks compared to controls without AF...
March 2, 2018: Cerebrovascular Diseases
Deena M Nasr, Kelly D Flemming, Giuseppe Lanzino, Harry J Cloft, David F Kallmes, Mohammad Hassan Murad, Waleed Brinjikji
BACKGROUND AND PURPOSE: Vertebrobasilar non-saccular and dolichoectatic aneurysms (VBDA) are a rare type of aneurysm and are generally associated with poor prognosis. In order to better characterize the natural history of VBDAs, we performed a systematic review and meta-analysis of the literature to determine rates of mortality, growth, rupture, ischemia, and intraparenchymal hemorrhage. MATERIALS AND METHODS: We searched the literature for longitudinal natural history studies of VBDA patients reporting clinical and imaging outcomes...
February 13, 2018: Cerebrovascular Diseases
Benjamin Gory, Mikael Mazighi, Julien Labreuche, Raphael Blanc, Michel Piotin, Francis Turjman, Bertrand Lapergue
BACKGROUND: Modern endovascular thrombectomy (MET), using stent retrievers or large-bore distal aspiration catheters in stroke patients with acute basilar artery occlusion (BAO), is routinely performed to date. However, more than 35% of BAO patients treated with MET die within 90 days despite high recanalization rates. The purpose of this study is to investigate the parameters associated with 90-day mortality in patients with BAO after MET. METHODS: We analyzed 117 consecutive BAO patients included in the Endovascular Treatment in Ischemic Stroke prospective clinical registry of consecutive acute ischemic stroke patients treated with MET (60 patients [51...
January 30, 2018: Cerebrovascular Diseases
Linda Sarah Ross, Markus Bettin, Simon Kochhäuser, Martin Ritter, Jens Minnerup, Lars Eckardt, Florian Reinke, Ralf Dittrich
BACKGROUND: Atrial fibrillation (AF) is an important cause of stroke. Continuous electrocardiography (ECG) monitoring with software-based analysis algorithms has been suggested to enhance the AF detection rate. We investigated the ability of stroke risk analysis (SRA) in the detection of AF in acute stroke patients. METHODS: Consecutive stroke patients numbering 1,153 were screened. Patients with cardioembolic stroke related to AF (n = 296, paroxysmal n = 63, persistent n = 233) and patients with cryptogenic stroke (n = 309) after standard diagnostic work-up (bedside ECG monitoring, ultrasound, transesophageal echocardiography, 24 h Holter ECG) received SRA during their stay at the Stroke Unit...
January 17, 2018: Cerebrovascular Diseases
Qi Li, Wen-Song Yang, Sheng-Li Chen, Fu-Rong Lv, Fa-Jin Lv, Xi Hu, Dan Zhu, Du Cao, Xing-Chen Wang, Rui Li, Liang Yuan, Xin-Yue Qin, Peng Xie
BACKGROUND: In spontaneous intracerebral hemorrhage (ICH), black hole sign has been proposed as a promising imaging marker that predicts hematoma expansion in patients with ICH. The aim of our study was to investigate whether admission CT black hole sign predicts hematoma growth in patients with ICH. METHODS: From July 2011 till February 2016, patients with spontaneous ICH who underwent baseline CT scan within 6 h of symptoms onset and follow-up CT scan were recruited into the study...
January 10, 2018: Cerebrovascular Diseases
Henriette Aurora Selvik, Anna Therese Bjerkreim, Lars Thomassen, Ulrike Waje-Andreassen, Halvor Naess, Christopher Elnan Kvistad
BACKGROUND AND PURPOSE: Ischemic stroke can be the first manifestation of cancer and it is therefore important to ascertain which stroke patients should be considered for cancer-diagnostic investigations. We aimed to determine the frequency of active cancer in patients with acute ischemic stroke and to compare clinical findings in stroke patients with active cancer to ischemic stroke patients with no history of cancer. Finally, we aimed to develop a predictive and feasible score for clinical use to uncover underlying malignancy...
January 9, 2018: Cerebrovascular Diseases
Stefana Catalina Bilha, Alexandru Burlacu, Dimitrie Siriopol, Luminita Voroneanu, Adrian Covic
BACKGROUND: Although chronic kidney disease (CKD) is an independent risk factor for stroke, official recommendations for the primary prevention of stroke in CKD are generally lacking. SUMMARY: We searched PubMed and ISI Web of Science for randomised controlled trials, observational studies, reviews, meta-analyses and guidelines referring to measures of stroke prevention or to the treatment of stroke-associated risk factors (cardiovascular disease in general and atrial fibrillation (AF), arterial hypertension or carotid artery disease in particular) among the CKD population...
January 9, 2018: Cerebrovascular Diseases
Alexander D Horsch, Edwin Bennink, Tom van Seeters, L Jaap Kappelle, Yolanda van der Graaf, Willem P T M Mali, Hugo W A M de Jong, Birgitta K Velthuis, Jan Willem Dankbaar
INTRODUCTION: Hemorrhagic transformation (HT) in acute ischemic stroke can occur as a result of reperfusion treatment. While withholding treatment may be warranted in patients with increased risk of HT, prediction of HT remains difficult. Nonlinear regression analysis can be used to estimate blood-brain barrier permeability (BBBP). The aim of this study was to identify a combination of clinical and imaging variables, including BBBP estimations, that can predict HT. MATERIALS AND METHODS: From the Dutch acute stroke study, 545 patients treated with intravenous recombinant tissue plasminogen activator and/or intra-arterial treatment were selected, with available admission extended computed tomography (CT) perfusion and follow-up imaging...
January 8, 2018: Cerebrovascular Diseases
Volker Maus, Daniel Behme, Jan Borggrefe, Christoph Kabbasch, Fatih Seker, Cicek Hüseyin, Utako Birgit Barnikol, Leonard Leong Litt Yeo, Patrick Brouwer, Michael Söderman, Markus Möhlenbruch, Marios Nikos Psychogios, Thomas Liebig, Christian Dohmen, Gereon Rudolf Fink, Anastasios Mpotsaris
BACKGROUND AND PURPOSE: Cerebral ischemic strokes due to extra-/intracranial tandem occlusions (TO) of the anterior circulation are responsible for causing mechanical thrombectomy (MT). The impact of concomitant contralateral carotid stenosis (CCS) upon outcome remains unclear in this stroke subtype. METHODS: Retrospective analysis of prospectively collected data of 4 international stroke centers between 2011 and 2017. One hundred ninety-seven consecutive patients with anterior TO were treated with MT and acute carotid artery stenting (CAS)...
November 24, 2017: Cerebrovascular Diseases
Ilko L Maier, Ioannis Tsogkas, Daniel Behme, Mathias Bähr, Michael Knauth, Marios-Nikos Psychogios, Jan Liman
BACKGROUND: Endovascular treatment (EVT) has been shown to significantly improve functional outcome in patients with acute large cerebral vessel occlusions. To date, no evidence-based recommendations on blood pressure management after successful EVT exist. Previous studies showed an association between high pre-EVT systolic blood pressure (SBP) and functional outcome, but do not answer the question on how to manage blood pressure after successful recanalization. The purpose of this study was to determine the role of blood pressure measurements as a predictor for early functional outcome in patients with successful EVT...
November 24, 2017: Cerebrovascular Diseases
Andrés Zorrilla-Vaca, Wendy Ziai, E Sander Connolly, Romer Geocadin, Richard Thompson, Lucia Rivera-Lara
BACKGROUND: The epidemiology of acute renal dysfunction after stroke is routinely overlooked following stroke events. Our aim in this meta-analysis is to report the prevalence of acute kidney injury (AKI) following acute stroke and its impact on mortality. METHODS: A systematic literature search was performed on PubMed, EMBASE and Google Scholar for observational studies examining the prevalence and mortality risk of stroke patients with AKI as a complication. The pooled prevalence rates and odds ratios for mortality risk were calculated using subgroup analyses between the stroke subtypes: acute ischemic stroke (AIS) and intracerebral hemorrhage (ICH)...
November 24, 2017: Cerebrovascular Diseases
Peter B Sporns, Uta Hanning, Wolfram Schwindt, Aglae Velasco, Boris Buerke, Christian Cnyrim, Jens Minnerup, Walter Heindel, Astrid Jeibmann, Thomas Niederstadt
BACKGROUND AND PURPOSE: The introduction of stent retrievers has made the complete extraction and histological analysis of human thrombi possible. A number of large randomized trials have proven the efficacy of thrombectomy for ischemic stroke; however, thrombus composition could have an impact on the efficacy and risk of the intervention. We therefore investigated the impact of histologic thrombus features on interventional outcome and procedure-related embolisms. For a pre-interventional estimation of histologic features and outcome parameters, we assessed the pre-interventional CT attenuation of the thrombi...
October 31, 2017: Cerebrovascular Diseases
Michael Kettner, Stefan Alexander Helwig, Andreas Ragoschke-Schumm, Lenka Schwindling, Safwan Roumia, Isabel Keller, Daniel Martens, Johann Kulikovski, Matthias Manitz, Martin Lesmeister, Silke Walter, Iris Quasar Grunwald, Thomas Schlechtriemen, Wolfgang Reith, Klaus Fassbender
BACKGROUND: An ambulance equipped with a computed tomography (CT) scanner, a point-of-care laboratory, and telemedicine capabilities (mobile stroke unit [MSU]) has been shown to enable the delivery of thrombolysis to stroke patients directly at the emergency site, thereby significantly decreasing time to treatment. However, work-up in an MSU that includes CT angiography (CTA) may also potentially facilitate triage of patients directly to the appropriate target hospital and specialized treatment, according to their individual vascular pathology...
October 31, 2017: Cerebrovascular Diseases
Mona Laible, Markus Alfred Möhlenbruch, Johannes Pfaff, Ekkehart Jenetzky, Peter Arthur Ringleb, Martin Bendszus, Timolaos Rizos
BACKGROUND: Renal dysfunction (RD) may be associated with poor outcome in ischemic stroke patients treated with mechanical thrombectomy (MT), but data concerning this important and emerging comorbidity do not exist so far. Here, we investigated the influence of RD on postprocedural intracerebral hemorrhage (ICH), clinical outcome, and mortality in a large prospectively collected cohort of acute ischemic stroke patients treated with MT. METHODS: Consecutive patients with anterior-circulation stroke treated with MT between October 2010 and January 2016 were included...
October 31, 2017: Cerebrovascular Diseases
Shoujiang You, Xia Wang, Richard I Lindley, Thompson Robinson, Craig S Anderson, Yongjun Cao, John Chalmers
BACKGROUND: Data on cognitive impairment after acute intracerebral hemorrhage (ICH) are limited. This study is aimed at determining the frequency and predictors of cognitive impairment among participants of the pilot phase, Intensive Blood Pressure (BP) Reduction in Acute Cerebral Hemorrhage Trial (INTERACT1). METHODS: INTERACT1 was an open randomized trial of early intensive (target systolic BP <140 mm Hg) compared with contemporaneous guideline-recommended BP lowering in 404 patients with elevated systolic BP (150-220 mm Hg) within 6 h of ICH onset...
October 26, 2017: Cerebrovascular Diseases
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