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Transient ischemic stroke

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https://www.readbyqxmd.com/read/28329254/periodic-limb-movements-and-white-matter-hyperintensities-in-first-ever-minor-stroke-or-high-risk-tia
#1
Mark I Boulos, Brian J Murray, Ryan T Muir, Fuqiang Gao, Gregory M Szilagyi, Menal Huroy, Alexander Kiss, Arthur S Walters, Sandra E Black, Andrew S Lim, Richard H Swartz
Study Objectives: Emerging evidence suggests that periodic limb movements (PLMs) may contribute to the development of cerebrovascular disease. White matter hyperintensities (WMHs), a widely accepted biomarker for cerebral small vessel disease, are associated with incident stroke and death. We evaluated the association between increased PLM indices and WMH burden in patients presenting with stroke or transient ischemic attack (TIA), while controlling for vascular risk factors and stroke severity...
December 29, 2016: Sleep
https://www.readbyqxmd.com/read/28327981/long-term-outcome-after-multiple-burr-hole-surgery-in-children-with-moyamoya-angiopathy-a-single-center-experience-in-108-hemispheres
#2
Thomas Blauwblomme, Bertrand Mathon, Olivier Naggara, Manoelle Kossorotoff, Marie Bourgeois, Stéphanie Puget, Philippe Meyer, Valentine Brousse, Marianne de Montalembert, Francis Brunelle, Michel Zerah, Christian Sainte-Rose
BACKGROUND: Multiple burr hole (MBH) surgery is a simple, safe, and effective indirect technique of revascularization in moyamoya angiopathy (MM). However, it is not yet recognized as a first-line treatment. OBJECTIVE: To assess the long-term outcome and perioperative complications in a large single-center cohort of children with MM who underwent burr hole surgery. METHODS: This study is a retrospective analysis of children who underwent surgery for MM in a national reference center for pediatric stroke between 1999 and 2015...
February 20, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28321414/medical-and-interventional-therapy-for-spontaneous-vertebral-artery-dissection-in-the-craniocervical-segment
#3
Guiyun Zhang, Zuoquan Chen
Background and Purpose. Spontaneous vertebral artery dissection (SVAD) is an important reason for posterior-circulation-ischemic stroke in the young and middle-aged population. Although some previous reports reveal a favorable outcome with conservative therapy, it is still controversial in the treatment of SVAD in some specific patients. Herein, we present our 10 years of clinical experience for SVAD at this location. Material and Methods. 20 patients with 20 SVADs in V2 and V3 segments were retrospectively studied...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28320749/sex-differences-in-percutaneous-coronary-intervention-insights-from-the-coronary-angiography-and-pci-registry-of-the-german-society-of-cardiology
#4
Tobias Heer, Matthias Hochadel, Karin Schmidt, Julinda Mehilli, Ralf Zahn, Karl-Heinz Kuck, Christian Hamm, Michael Böhm, Georg Ertl, Hans Martin Hoffmeister, Stefan Sack, Jochen Senges, Steffen Massberg, Anselm K Gitt, Uwe Zeymer
BACKGROUND: Several studies have suggested sex-related differences in diagnostic and invasive therapeutic coronary procedures. METHODS AND RESULTS: Data from consecutive patients who were enrolled in the Coronary Angiography and PCI Registry of the German Society of Cardiology were analyzed. We aimed to compare sex-related differences in in-hospital outcomes of patients undergoing percutaneous coronary intervention (PCI) for stable coronary artery disease, non-ST elevation acute coronary syndromes, ST elevation myocardial infarction, and cardiogenic shock...
March 20, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28320070/dexpramipexole-improves-bioenergetics-and-outcome-in-experimental-stroke
#5
Mirko Muzzi, Elisabetta Gerace, Daniela Buonvicino, Elisabetta Coppi, Francesco Resta, Laura Formentini, Riccardo Zecchi, Laura Tigli, Daniele Guasti, Martina Ferri, Emidio Camaioni, Alessio Masi, Domenico E Pellegrini-Giampietro, Guido Mannaioni, Daniele Bani, Anna M Pugliese, Alberto Chiarugi
BACKGROUND AND PURPOSE: To investigate the effects of dexpramipexole, a drug recently tested in ALS patients able to bind F1Fo ATP synthase and increase mitochondrial ATP production, on experimental ischemic brain injury. EXPERIMENTAL APPROACH: The effects of dexpramipexole on bioenergetics, Ca(2+) fluxes, electrophysiological functions and death were evaluated in primary neural cultures and hippocampal slices exposed to oxygen-glucose deprivation (OGD). The drug's impact on infarct volumes and neurological functions was also evaluated in mice subjected to proximal or distal MCAo...
March 20, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28319944/time-of-day-could-affect-cognitive-screening-performance-in-older-patients-with-tia-and-stroke
#6
Sara Mazzucco, Linxin Li, Maria A Tuna, Sarah T Pendlebury, Rhoda Frost, Rose Wharton, Peter M Rothwell
BACKGROUND AND PURPOSE: The impact of time-of-day on the cognitive performance of older patients with limited cognitive reserve after a transient ischemic attack (TIA) or stroke, and on short cognitive tests, such as the Montreal Cognitive Assessment (MoCA), is unknown. We retrospectively studied whether morning versus afternoon assessment might affect the classification of patients aged 70 or older as severe (SCI), mild (MCI), and no (NCI) cognitive impairment by the MoCA. METHODS: Morning (12 p...
March 21, 2017: Cerebrovascular Diseases
https://www.readbyqxmd.com/read/28318140/subclavian-artery-stenting-for-coronary-subclavian-steal-syndrome
#7
Wuqiang Che, Hui Dong, Xiongjing Jiang, Meng Peng, Yubao Zou, Lei Song, Huimin Zhang, Yuejin Yang, Runlin Gao
OBJECTIVES: To evaluate the safety and feasibility of subclavian artery stenting for coronary-subclavian steal syndrome (CSSS). BACKGROUND: CSSS is a rare cause of myocardial ischemia due to ipsilateral subclavian artery stenosis in patients who have undergone coronary artery bypass graft. However, current knowledge of the optimal therapy for CSSS is limited. METHODS: The clinical data of 37 patients (33 male; mean age 65 ± 6 years) with CSSS who had undergone subclavian artery stenting between April 2007 and December 2015 were analyzed...
March 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28317235/astrocyte-specific-insulin-like-growth-factor-1-gene-transfer-in-aging-female-rats-improves-stroke-outcomes
#8
Andre K Okoreeh, Shameena Bake, Farida Sohrabji
Middle aged female rats sustain larger stroke infarction and disability than younger female rats. This older group also shows age-related reduction of insulin like growth factor (IGF)-1 in serum and in astrocytes, a cell type necessary for poststroke recovery. To determine the impact of astrocytic IGF-1 for ischemic stroke, these studies tested the hypothesis that gene transfer of IGF-1 to astrocytes will improve stroke outcomes in middle aged female rats. Middle aged (10-12 month old), acyclic female rats were injected with recombinant adeno-associated virus serotype 5 (AAV5) packaged with the coding sequence of the human (h)IGF-1 gene downstream of an astrocyte-specific promoter glial fibrillary acidic protein (GFAP) (AAV5-GFP-hIGF-1) into the striatum and cortex...
March 20, 2017: Glia
https://www.readbyqxmd.com/read/28317214/characterization-of-blood-flow-through-intrapulmonary-arteriovenous-anastomoses-and-patent-foramen-ovale-at-rest-and-during-exercise-in-stroke-and-transient-ischemic-attack-patients
#9
Rinaldo Romac, Otto Barak, Duska Glavas, Zora Susilovic Grabovac, Petar Lozo, Igor Roje, Kresimir Caljkusic, Irena Drmic-Hofman, James T Davis, Zeljko Dujic, Andrew T Lovering
OBJECTIVES: We determined whether stroke and/or TIA subjects have exercise-induced blood flow through intrapulmonary arteriovenous anastomoses (QIPAVA ) and/or patent foramen ovale (QPFO ) and a genetic predisposition for ischemic stroke. METHODS: Twenty-eight stroke and/or TIA subjects (33-63 years old) underwent transthoracic saline contrast echocardiography concomitant with transcranial Doppler to detect QIPAVA and QPFO at rest and during supine exercise with and without breathing 100% O2 ...
March 19, 2017: Echocardiography
https://www.readbyqxmd.com/read/28315758/tat-pep-a-novel-blocker-of-pirb-enhances-the-recovery-of-cognitive-function-in-mice-after-transient-global-cerebral-ischemia
#10
Liya Li, Bin Deng, Shuang Li, Tao Jiang, Zhaoyang Xiao, Qiang Wang
Neuronal damage and axonal regeneration inhibition are the main reasons to poor functional recovery after ischemia. Nogo-A signals inhibit axon outgrowth through the PirB receptor after ischemic reperfusion injury in central nervous system. We use TAT-PEP, a novel protein which could pass through the blood brain barrier, to block the function of PirB and identify the long-term neurological and behavioral recovery after bilateral common carotid artery occlusion (BCCAO) in mice. We observed that TAT-PEP promoted neuron survival and inhibited neuronal apoptosis...
March 15, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28306544/acute-ischemic-stroke-mimicking-subarachnoid-hemorrhage-after-coronary-angioplasty
#11
Ana Pršić, Tomislav Šipić, Krešimr Štambuk, Hrvoje Budinčević
Use of non-ionic contrast media (CM) in coronary arteriography has been reported to cause transient cortical blindness, confusion, amnesia and very rare focal deficits. We report a 69-year old patient with stabile angina pectoris who underwent coronary angioplasty with stent placement due to in-stent thrombosis of the right coronary artery who developed stroke symptoms with radiological suspicion of subarachnoid hemorrhage. No vascular malformations were detected on CT cerebral angiography. Dual antiplatelet treatment was continued...
March 16, 2017: Romanian Journal of Internal Medicine, Revue Roumaine de Médecine Interne
https://www.readbyqxmd.com/read/28303440/the-efficacy-and-safety-of-high-dose-statins-in-acute-phase-of-ischemic-stroke-and-transient-ischemic-attack-a-systematic-review
#12
Jing-Xue Fang, Er-Qiang Wang, Wei Wang, Yang Liu, Gang Cheng
Inconsistent findings in the studies have been observed concerning the higher dose of statins use in the acute phase of ischemic stroke and transient ischemic attack (TIA). Therefore, we performed a systematic review to assess this issue. A computerized literature search in PubMed, Cochrane Library databases, and EMBASE for randomized controlled trials (RCTs) was conducted. The efficacy outcome indicators were National Institutes of Health Stroke Scale (NIHSS) score, infarct volume, and recurrence of stroke; the safety outcome indicators were intracranial hemorrhage events, cardiovascular and cerebrovascular events, and all-cause death...
March 16, 2017: Internal and Emergency Medicine
https://www.readbyqxmd.com/read/28302764/-18-f-gp1-a-novel-fluorine-18-labeled-tracer-designed-for-pet-imaging-of-thrombi-with-high-detection-sensitivity-and-low-background
#13
Jessica Lohrke, Holger Siebeneicher, Markus Berger, Michael Reinhardt, Mathias Berndt, Andre Mueller, Marion Zerna, Norman Koglin, Felix Oden, Marcus Bauser, Matthias Friebe, Ludger M Dinkelborg, Joachim Huetter, Andrew W Stephens
Thromboembolic diseases such as myocardial infarction, stroke, transient ischemic attacks and pulmonary embolism are major causes of morbidity and mortality worldwide. GPIIb/IIIa is the key receptor involved in platelet aggregation and is a validated target for therapeutic approaches and diagnostic imaging. The aim of this study was to develop and characterize a specific small molecule tracer for positron emission tomography (PET) imaging that binds with high affinity to GPIIb/IIIa receptors and has suitable pharmacokinetic properties to overcome limitations of previous approaches...
March 16, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28300551/role-of-caveolin-1-vascular-endothelial-growth-factor-pathway-in-basic-fibroblast-growth-factor-induced-angiogenesis-and-neurogenesis-after-treadmill-training-following-focal-cerebral-ischemia-in-rats
#14
Qiongyi Pang, Huimei Zhang, Zhenzhen Chen, Yudan Wu, Min Yidian Bai Liu, Yun Zhao, Fengxia Tu, Chan Liu, Xiang Chen
Exercise is known to aid functional recovery following ischemia, though the mechanisms responsible for the beneficial effects of exercise on recovery from ischemic stroke are not fully understood. Basic fibroblast growth factor (bFGF) contributes to angiogenesis and promotes neurologic functional recovery after stroke. The present study aimed to investigate the possible mechanisms whereby treadmill exercise ameliorated impaired angiogenesis and neurogenesis following transient cerebral ischemia in middle cerebral artery occlusion (MCAO) rats...
March 11, 2017: Brain Research
https://www.readbyqxmd.com/read/28296065/direct-percutaneous-transaxillary-implantation-of-a-novel-self-expandable-transcatheter-heart-valve-for-aortic-stenosis
#15
Florian Deuschl, Niklas Schofer, Moritz Seiffert, Samer Hakmi, Isamu Mizote, Andreas Schaefer, Johannes Schirmer, Hermann Reichenspurner, Stefan Blankenberg, Lenard Conradi, Ulrich Schäfer
OBJECTIVES: The aim of this study was to evaluate safety, feasibility, and efficacy of transaxillary TAVI using a novel self-expandable transcatheter heart valve (THV) via a direct percutaneous technique. METHODS: The analysis comprises 12 consecutive patients with severe aortic stenosis treated with the ACURATE Neo™ THV (Symetis) by direct percutaneous transaxillary access. RESULTS: Patients presented with a mean age of 79.9 ± 6.2 years and high calculated surgical risk (logEuroSCORE I: 19...
March 15, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28294064/knockdown-of-c-c-chemokine-receptor-5-ccr5-is-protective-against-cerebral-ischemia-and-reperfusion-injury
#16
Edna Constanza Gómez Victoria, Eliana Cristina de Brito Toscano, Ana Clara de Sousa Cardoso, Daniele Gonçalves da Silva, Aline Silva de Miranda, Lucíola da Silva Barcelos, Michelle Adriane Sugimoto, Lirlândia Pires Sousa, Isabel Vieira de Assis Lima, Antônio Carlos Pinheiro de Oliveira, Fátima Brant, Fabiana Simão Machado, Mauro Martins Teixeira, Antônio Lúcio Teixeira, Milene Alvarenga Rachid
BACKGROUND: Stroke is the second leading cause of death and a major cause of disability of adults worldwide. Inflammatory processes are known to contribute to the pathophysiology of cerebral ischemia, especially following reperfusion. Chemokines and their receptors are involved in migration of leukocytes and have been implicated in pathogenesis of ischemic stroke. OBJECTIVE: In the present study, we investigated the effects of C-C chemokine receptor type 5 (CCR5) deficiency on neurological outcome, brain damage and expression of pro-inflammatory chemokines: chemokine (C-X-C motif) ligand 1 (CXCL1), chemokine (CC motif) ligand 3 (CCL3) and chemokine (C-C motif) ligand 5 (CCL5), and the brain-derived neurotrophic factor (BDNF)...
March 13, 2017: Current Neurovascular Research
https://www.readbyqxmd.com/read/28292872/targeting-different-monocyte-macrophage-subsets-has-no-impact-on-outcome-in-experimental-stroke
#17
Antje Schmidt, Jan-Kolja Strecker, Stephanie Hucke, Nils-Martin Bruckmann, Martin Herold, Matthias Mack, Kai Diederich, Wolf-Rüdiger Schäbitz, Heinz Wiendl, Luisa Klotz, Jens Minnerup
BACKGROUND AND PURPOSE: Peripheral immune cell infiltration contributes to neural injury after ischemic stroke. However, in contrast to lymphocytes and neutrophils, the role of different monocyte/macrophage subsets remains to be clarified. Therefore, we evaluated the effects of selective and unselective monocyte/macrophage depletion and proinflammatory (M1-) and anti-inflammatory (M2-) macrophage transfer on the outcome after experimental cerebral ischemia. METHODS: To assess short-term effects of monocytes/macrophages in acute ischemic stroke, mice underwent transient middle cerebral artery occlusion and received either clodronate liposomes for unselective macrophage depletion, MC-21-antibody for selective depletion of proinflammatory Ly-6C(high) monocytes, or proinflammatory (M1-) or anti-inflammatory (M2-) macrophage transfer...
March 14, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28292859/-18-f-fluoride-and-18-f-fluorodeoxyglucose-positron-emission-tomography-after-transient-ischemic-attack-or-minor-ischemic-stroke-case-control-study
#18
Alex T Vesey, William S A Jenkins, Agnese Irkle, Alastair Moss, Greg Sng, Rachael O Forsythe, Tim Clark, Gemma Roberts, Alison Fletcher, Christophe Lucatelli, James H F Rudd, Anthony P Davenport, Nicholas L Mills, Rustam Al-Shahi Salman, Martin Dennis, William N Whiteley, Edwin J R van Beek, Marc R Dweck, David E Newby
BACKGROUND: Combined positron emission tomography (PET) and computed tomography (CT) can assess both anatomy and biology of carotid atherosclerosis. We sought to assess whether (18)F-fluoride or (18)F-fluorodeoxyglucose can identify culprit and high-risk carotid plaque. METHODS AND RESULTS: We performed (18)F-fluoride and (18)F-fluorodeoxyglucose PET/CT in 26 patients after recent transient ischemic attack or minor ischemic stroke: 18 patients with culprit carotid stenosis awaiting carotid endarterectomy and 8 controls without culprit carotid atheroma...
March 2017: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28291765/cervical-spine-surgery-complications-and-risks-in-the-elderly
#19
Kris Radcliff, Kevin L Ong, Scott Lovald, Edmund Lau, Mark Kurd
STUDY DESIGN: Cervical decompression (CD) and cervical fusion (CF) patients in 5% Medicare Part B claims data. OBJECTIVE: Evaluate the complication rate and associated risk factors after cervical spine surgery using a national sample of elderly patients. SUMMARY OF BACKGROUND DATA: The number of cervical spine procedures in the United States has risen along with associated hospital costs. Postoperative complications lead to longer hospitalizations and greater costs...
March 15, 2017: Spine
https://www.readbyqxmd.com/read/28290891/-the-role-of-urinary-lipocalin-in-prognostication-of-hospital-complications-in-patients-with-ischemic-heart-disease-after-coronary-artery-bypass-grafting
#20
K S Shafranskaya, O K Kuzmina, D A Sumin, K Ye Krivoshapova, Ye G Uchasova, S V Ivanov, M V Zykov, V V Kashtalap, O L Barbarash
PURPOSE: To assess significance of urinary neutrophil gelatinase-associated lipocalin (NGAL) for predicting hospital complications in subjects with ischemic heart disease (IHD) after coronary artery bypass grafting (CABG). MATERIALS AND METHODS: The study included 720 subjects who underwent CABG between 03/2011 and 04/2012. Blood serum creatinine level, glomerular filtration rate (GFR) (MDRD formula) and NGAL concentration were measured before and on day 7 after CABG...
October 2016: Kardiologiia
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