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Acute ischemic stroke

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https://www.readbyqxmd.com/read/28550709/effect-of-renal-function-status-on-the-prognostic-value-of-heart-rate-in-acute-ischemic-stroke-patients
#1
Zhengbao Zhu, Chongke Zhong, Tian Xu, Aili Wang, Yanbo Peng, Tan Xu, Hao Peng, Chung-Shiuan Chen, Jinchao Wang, Zhong Ju, Qunwei Li, Deqin Geng, Yingxian Sun, Qingjuan Du, Yongqiu Li, Jing Chen, Yonghong Zhang, Jiang He
BACKGROUND AND AIMS: The association between heart rate and prognosis of ischemic stroke remains debatable, and whether renal function status influences the relationship between them is still not elucidated. METHODS: A total of 3923 ischemic stroke patients were included in this prospective multicenter study from the China Antihypertensive Trial in Acute Ischemic Stroke (CATIS). The primary outcome was a combination of death and major disability (modified Rankin Scale score ≥3) at 3 months after stroke...
May 19, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28550481/antiplatelet-pretreatment-and-outcomes-in-intravenous-thrombolysis-for-stroke-a-systematic-review-and-meta-analysis
#2
Georgios Tsivgoulis, Aristeidis H Katsanos, Ramin Zand, Vijay K Sharma, Martin Köhrmann, Sotirios Giannopoulos, Efthymios Dardiotis, Anne W Alexandrov, Panayiotis D Mitsias, Peter D Schellinger, Andrei V Alexandrov
Since there are contradictory data regarding the association of antiplatelet pretreatment (AP) with safety and efficacy outcomes of intravenous thrombolysis (IVT) for acute ischemic stroke (AIS), we conducted a systematic review and meta-analysis of available randomized-controlled clinical trials (RCTs) to investigate the association of AP with outcomes of AIS patients treated with intravenous alteplase. The outcome events of interest included symptomatic intracranial hemorrhage (sICH), fatal ICH, complete recanalization (CR), 3-month favorable functional outcome (FFO, mRS score 0-1), 3-month functional independence (FI, mRS score 0-2), and mortality...
May 26, 2017: Journal of Neurology
https://www.readbyqxmd.com/read/28549916/utility-of-carotid-ultrasonography-in-management-of-an-atypical-high-vascular-risk-patient-with-recurrent-calcified-cerebral-embolic-stroke
#3
John W Liang, Jesse Weinberger, Aaron Tansy
OBJECTIVE: To describe a case of recurrent calcified cerebral emboli (CCE)-related acute ischemic stroke (AIS) and the diagnostic utility of plaque morphology characterization on carotid ultrasound. BACKGROUND: CCE are a rare cause of AIS. CCE-related AIS has been previously reported only in high vascular-risk patients such as those with severe carotid stenosis, widespread atheromatous disease, or cardiac valvular disease. CCE-related AIS from a carotid origin has not been reported in patients without carotid stenosis...
May 23, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28549819/rivaroxaban-for-stroke-prevention-in-patients-with-nonvalvular-atrial-fibrillation-and-active-cancer
#4
Eva S Laube, Anthony Yu, Dipti Gupta, Yimei Miao, Patrick Samedy, Jonathan Wills, Stephen Harnicar, Gerald A Soff, Simon Mantha
Rivaroxaban is broadly used for the primary prevention of stroke and systemic embolism in the general population with nonvalvular atrial fibrillation (AF). However, there is little published evidence on the safety and efficacy of rivaroxaban for AF in patients with active cancer. The aim of this study was to assess the safety and efficacy of rivaroxaban in patients with active cancer and AF. The use of rivaroxaban in patients with cancer at the Memorial Sloan Kettering Cancer Center is monitored in the setting of a Quality Assessment Initiative...
April 27, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28549269/high-hair-cortisol-concentrations-predict-worse-cognitive-outcome-after-stroke-results-from-the-tabasco-prospective-cohort-study
#5
E Ben Assayag, O Tene, A D Korczyn, L Shopin, E Auriel, J Molad, H Hallevi, C Kirschbaum, N M Bornstein, S Shenhar-Tsarfaty, E Kliper, T Stalder
BACKGROUND AND PURPOSE: The role of stress-related endocrine dysregulation in the development of cognitive changes following a stroke needs further elucidation. We explored this issue in a longitudinal study on stroke survivors using hair cortisol concentrations (HCC), a measure of integrated long-term cortisol levels. METHODS: Participants were consecutive cognitively intact first-ever mild-moderate ischemic stroke/transient ischemic attack (TIA) survivors from the Tel Aviv Brain Acute Stroke Cohort (TABASCO) study...
May 18, 2017: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/28547185/prognostic-value-of-eeg-microstates-in-acute-stroke
#6
Filippo Zappasodi, Pierpaolo Croce, Alessandro Giordani, Giovanni Assenza, Nadia M Giannantoni, Paolo Profice, Giuseppe Granata, Paolo M Rossini, Franca Tecchio
Given the importance of neuronal plasticity in recovery from a stroke and the huge variability of recovery abilities in patients, we investigated neuronal activity in the acute phase to enhance information about the prognosis of recovery in the stabilized phase. We investigated the microstates in 47 patients who suffered a first-ever mono-lesional ischemic stroke in the middle cerebral artery territory and in 20 healthy control volunteers. Electroencephalographic (EEG) activity at rest with eyes closed was acquired between 2 and 10 days (T0) after ischemic attack...
May 25, 2017: Brain Topography
https://www.readbyqxmd.com/read/28546326/regional-pediatric-acute-stroke-protocol-initial-experience-during-3-years-and-13-recanalization-treatments-in-children
#7
Laurence Tabone, Nicolas Mediamolle, Celine Bellesme, Fabrice Lesage, David Grevent, Augustin Ozanne, Olivier Naggara, Beatrice Husson, Isabelle Desguerre, Catherine Lamy, Christian Denier, Manoelle Kossorotoff
BACKGROUND AND PURPOSE: To evaluate hyperacute management of pediatric arterial ischemic stroke, setting up dedicated management pathways is the first recommended step to prove the feasibility and safety of such treatments. A regional pediatric stroke alert protocol including 2 centers in the Paris-Ile-de-France area, France, was established. METHODS: Consecutive pediatric patients (28 days-18 years) with confirmed arterial ischemic stroke who had acute recanalization treatment (intravenous r-tPA [recombinant tissue-type plasminogen activator], endovascular procedure, or both) according to the regional pediatric stroke alert were retrospectively reviewed during a 40-month period...
May 25, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28546325/reciprocal-interaction-of-24-hour-blood-pressure-variability-and-systolic-blood-pressure-on-outcome-in-stroke-thrombolysis
#8
Lars Kellert, Christian Hametner, Niaz Ahmed, Geraldine Rauch, Mary J MacLeod, Francesco Perini, Kennedy R Lees, Peter A Ringleb
BACKGROUND AND PURPOSE: Significance and management of blood pressure (BP) changes in acute stroke care are unclear. Here, we aimed to investigate the impact of 24-hour BP variability (BPV) on outcome in patients with acute ischemic stroke treated with intravenous thrombolysis. METHODS: From the Safe Implementation of Treatment in Stroke International Stroke Thrombolysis registry, 28 976 patients with documented pre-treatment systolic BP at 2 and 24 hours were analyzed...
May 25, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28546252/acute-basilar-artery-occlusion-differences-in-characteristics-and-outcomes-after-endovascular-therapy-between-patients-with-and-without-underlying-severe-atherosclerotic-stenosis
#9
Y Y Lee, W Yoon, S K Kim, B H Baek, G S Kim, J T Kim, M S Park
BACKGROUND AND PURPOSE: Prediction of underlying intracranial atherosclerotic stenosis before endovascular therapy might be helpful for appropriate therapeutic planning in patients with acute ischemic stroke. This study aimed to compare the characteristics and treatment outcomes in patients with acute basilar artery occlusion relative to the existence or nonexistence of underlying intracranial atherosclerotic stenosis. MATERIALS AND METHODS: Sixty-two patients with acute basilar artery occlusion underwent multimodal endovascular therapy...
May 25, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28545791/the-combination-of-plasma-glutamate-and-physical-impairment-after-acute-stroke-as-a-potential-indicator-for-the-early-onset-post-stroke-depression
#10
Lei-Yu Geng, Fang-Yuan Qian, Jun-Feng Qian, Zhi-Jun Zhang
OBJECTS: The present study aimed to investigate the relationship of plasma glutamate levels with the early-onset of post-stroke depression (PSD) and to further explore the prognostic value of plasma glutamate combined with clinical characteristics for the early-onset PSD in the acute ischemic stroke patients. METHODS: Seventy-four patients who admitted to the hospital within 24h of acute ischemic stroke were consecutively recruited and followed up for 2weeks. The Beck Depression Inventory (BDI) and 17-item Hamilton Depression Rating Scale (HAMD-17) were used to screen for depressive symptoms 14days after stroke...
May 2017: Journal of Psychosomatic Research
https://www.readbyqxmd.com/read/28545277/-effect-of-the-ischemic-post-conditioning-on-the-prevention-of-the-cardio-renal-damage-in-patients-with-acute-st-segment-elevation-myocardial-infarction-after-primary-percutaneous-coronary-intervention
#11
Y Y Wang, T Li, Y W Liu, B J Liu, X M Hu, Y Wang, W Q Gao, P Wu, L Huang, X Li, W J Peng, M Ning
Objective: To evaluate the effect of the ischemic post-conditioning (IPC) on the prevention of the cardio-renal damage in patients with acute ST-segment elevation myocardial infarction (STEMI) after primary percutaneous coronary intervention (PPCI). Methods: A total of 251 consecutive STEMI patients underwent PPCI in the heart center of Tianjin Third Central Hospital from January 2012 to June 2014 were enrolled in this prospective, randomized, control, single-blinded, clinical registry study. Patients were randomly divided into IPC group (123 cases) and control group (128 cases) with random number table...
April 24, 2017: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/28545076/temporal-trends-in-stroke-incidence-in-south-asian-chinese-and-white-patients-a-population-based-analysis
#12
Nadia A Khan, Finlay A McAlister, Louise Pilote, Anita Palepu, Hude Quan, Michael D Hill, Jiming Fang, Moira K Kapral
BACKGROUND: Little is known about potential ethnic differences in stroke incidence. We compared incidence and time trends of ischemic stroke and primary intracerebral hemorrhage in South Asian, Chinese and white persons in a population-based study. METHODS: Population based census and administrative data analysis in the provinces of Ontario and British Columbia, Canada using validated ICD 9/ICD 10 coding for acute ischemic and hemorrhagic stroke (1997-2010). RESULTS: There were 3290 South Asians, 4444 Chinese and 160944 white patients with acute ischemic stroke and 535 South Asian, 1376 Chinese and 21842 white patients with intracerebral hemorrhage...
2017: PloS One
https://www.readbyqxmd.com/read/28542605/voxelwise-distribution-of-acute-ischemic-stroke-lesions-in-patients-with-newly-diagnosed-atrial-fibrillation-trigger-of-arrhythmia-or-only-target-of-embolism
#13
Timolaos Rizos, Andreas J Bartsch, Timothy D Johnson, Felix Dittgen, Thomas E Nichols, Uwe Malzahn, Roland Veltkamp
OBJECTIVE: Atrial fibrillation (AF) is frequently detected after ischemic stroke for the first time, and brain regions involved in autonomic control have been suspected to trigger AF. We examined whether specific brain regions are associated with newly detected AF after ischemic stroke. METHODS: Patients with acute cerebral infarctions on diffusion-weighted magnetic resonance imaging were included in this lesion mapping study. Lesions were mapped and modeled voxelwise using Bayesian Spatial Generalised Linear Mixed Modeling to determine differences in infarct locations between stroke patients with new AF, without AF and with AF already known before the stroke...
2017: PloS One
https://www.readbyqxmd.com/read/28542069/association-of-circulating-high-sensitivity-c-reactive-protein-with-late-recurrence-after-ischemic-stroke
#14
Yong-Bo Zhang, Zhiming Yin, Xinwen Han, Quanliang Wang, Zhen Zhang, Jia Geng
We investigated the association between serum levels of high-sensitivity C-reactive protein (hs-CRP) and stroke recurrence events in a cohort of patients with acute ischemic stroke (IS). We prospectively studied 286 patients with acute IS who were admitted within 24 h after the onset of symptoms. Serum levels of hs-CRP, and National Institutes of Health stroke scale (NIHSS) were measured at admission. The primary endpoint was stroke recurrence 1 year after stroke onset. We used logistic regression models to assess the relationship between hs-CRP levels and the risk of recurrent stroke...
May 24, 2017: Neuroreport
https://www.readbyqxmd.com/read/28541195/monitoring-acute-stroke-in-mouse-model-using-laser-speckle-imaging-guided-visible-light-optical-coherence-tomography
#15
Qi Liu, Siyu Chen, Brian Soetikno, Wenzhong Liu, Shanbao Tong, Hao Zhang
OBJECTIVE: Monitoring hemodynamic and vascular changes in the acute stages of mouse stroke models is invaluable in studying ischemic stroke pathophysiology. However, there lacks a tool to simultaneously and dynamically investigate these changes. METHODS: We integrated laser speckle imaging (LSI) and visible-light optical coherence tomography (Vis-OCT) to reveal dynamic vascular responses in acute stages in the distal middle cerebral artery occlusion (dMCAO) model in rodents...
May 23, 2017: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/28540400/imaging-of-cerebral-ischemic-edema-and-neuronal-death
#16
REVIEW
Rüdiger von Kummer, Imanuel Dzialowski
PURPOSE: In acute cerebral ischemia, the assessment of irreversible injury is crucial for treatment decisions and the patient's prognosis. There is still uncertainty how imaging can safely differentiate reversible from irreversible ischemic brain tissue in the acute phase of stroke. METHODS: We have searched PubMed and Google Scholar for experimental and clinical papers describing the pathology and pathophysiology of cerebral ischemia under controlled conditions...
May 24, 2017: Neuroradiology
https://www.readbyqxmd.com/read/28538402/dissection-extending-from-extra-to-intracranial-arteries-a-case-report-of-progressive-ischemic-stroke
#17
Fu-Liang Zhang, Zhen-Ni Guo, Yang Liu, Yun Luo, Yi Yang
RATIONALE: Cervicocephalic artery dissections, once considered a rare disease, have become increasingly recognized as a cause of stroke in young and middle-aged individuals. Early diagnosis is mandatory because anticoagulation or antithrombotic therapy can help prevent primary or secondary ischemic events. However, the diagnosis is still a crucial challenge for radiologists and neurologists. PATIENT CONCERNS: We reported a rare case of 33-year-old patient with progressive ischemic stroke due to dissection from an intimal tear in the right proximal internal carotid artery to distal middle cerebral artery...
May 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28536753/differentiation-of-clot-composition-using-conventional-and-dual-energy-computed-tomography
#18
Jan Borggrefe, Jonathan Kottlors, Mahmood Mirza, Victor-Frederic Neuhaus, Nuran Abdullayev, Volker Maus, Christoph Kabbasch, David Maintz, Anastasios Mpotsaris
BACKGROUND AND PURPOSE: In unenhanced computed tomography (CT) of acute ischemic stroke, the density of occluding clots is associated with the content of red blood cells and successful recanalization with stent thrombectomy. However, no CT marker for fibrin content is established. In order to improve clot diagnostics, we conducted an in vitro study to investigate thrombus composition of histologically defined ovine blood clots with unenhanced and contrast-enhanced CT using spectral detector CT (SDCT)...
May 23, 2017: Clinical Neuroradiology
https://www.readbyqxmd.com/read/28536522/a-high-resolution-mri-study-of-relationship-between-remodeling-patterns-and-ischemic-stroke-in-patients-with-atherosclerotic-middle-cerebral-artery-stenosis
#19
Dan-Feng Zhang, Yu-Chen Chen, Huiyou Chen, Wei-Dong Zhang, Jun Sun, Cun-Nan Mao, Wen Su, Peng Wang, Xindao Yin
Purpose: Recently, high-resolution magnetic resonance imaging (HR-MRI) has been used to depict the wall characteristics of the intracranial arteries. The aim of this study was to explain the relationship between the remodeling patterns and acute ischemic stroke in patients with atherosclerotic middle cerebral artery (MCA) stenosis using HR-MRI. Materials and Methods: From August 2015 to May 2016, we prospectively screened 33 consecutive patients with unilateral MCA stenosis using time-to-flight MR angiography, including 15 patients with symptomatic MCA stenosis and 18 patients with asymptomatic MCA stenosis...
2017: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/28536425/intravenous-thrombolysis-in-chinese-patients-with-different-subtype-of-mild-stroke-thrombolysis-in-patients-with-mild-stroke
#20
Weiqi Chen, Yuesong Pan, Xingquan Zhao, Liping Liu, Hao Li, Xiaoling Liao, Chunjuan Wang, Yilong Wang, Yongjun Wang
Thrombolysis treatment for patients with mild stroke is controversial. The aim of our study was to investigate whether patients with mild stroke or its specific etiologic subtype might benefit from rt-PA therapy. Data were derived from two cohorts of patients with and without rt-PA treatment: (1) the Thrombolysis Implementation and Monitor of Acute Ischemic Stroke in China (TIMS-China) and (2) the China National Stroke Registry (CNSR) database. Patients with mild stroke (defined as National Institutes of Health Stroke Scale ≤5) receiving the rt-PA therapy and without rt-PA therapy were matched in 1:2 for age, sex, stroke severity and etiologic subtype...
May 23, 2017: Scientific Reports
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