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Ischaemic stroke

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https://www.readbyqxmd.com/read/28320178/profile-of-von-willebrand-factor-antigen-and-von-willebrand-factor-propeptide-in-an-overall-tia-and-ischaemic-stroke-population-and-amongst-subtypes
#1
W O Tobin, J A Kinsella, G F Kavanagh, J S O'Donnell, R T McGrath, S Tierney, B Egan, T M Feeley, T Coughlan, D R Collins, D O'Neill, Sjx Murphy, S J Lim, R P Murphy, Djh McCabe
INTRODUCTION: Von Willebrand factor propeptide (VWF:Ag II) is proposed to be a more sensitive marker of acute endothelial activation than von Willebrand factor antigen (VWF:Ag). Simultaneous data on VWF:Ag and VWF:Ag II profiles are very limited following TIA and ischaemic stroke. METHODS: In this prospective, observational, case-control study, plasma VWF:Ag and VWF:Ag II levels were quantified in 164 patients≤4weeks of TIA or ischaemic stroke (baseline), and then ≥14days (14d) and ≥90days (90d) later, and compared with those from 27 healthy controls...
April 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28318997/diastolic-blood-pressure-is-a-risk-factor-for-peri-procedural-stroke-following-carotid-endarterectomy-in-asymptomatic-patients
#2
D D de Waard, G J de Borst, R Bulbulia, A Huibers, A Halliday
OBJECTIVE/BACKGROUND: Carotid endarterectomy (CEA) prevents future stroke, but this benefit depends on detection and control of high peri-operative risk factors. In symptomatic patients, diastolic hypertension has been causally related to procedural stroke following CEA. The aim was to identify risk factors causing peri-procedural stroke in asymptomatic patients and to relate these to timing of surgery and mechanism of stroke. METHODS: In the first Asymptomatic Carotid Surgery Trial (ACST-1), 3,120 patients with severe asymptomatic carotid stenosis were randomly assigned to CEA plus medical therapy or to medical therapy alone...
March 16, 2017: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28318984/safety-and-efficacy-of-thrombectomy-in-acute-ischaemic-stroke-revascat-1-year-follow-up-of-a-randomised-open-label-trial
#3
Antoni Dávalos, Erik Cobo, Carlos A Molina, Angel Chamorro, M Angeles de Miquel, Luis San Román, Joaquín Serena, Elena López-Cancio, Marc Ribó, Mónica Millán, Xabier Urra, Pere Cardona, Alejandro Tomasello, Carlos Castaño, Jordi Blasco, Lucía Aja, Marta Rubiera, Meritxell Gomis, Arturo Renú, Blanca Lara, Joan Martí-Fàbregas, Brian Jankowitz, Neus Cerdà, Tudor G Jovin
BACKGROUND: The REVASCAT trial and other studies have shown that the neurovascular thrombectomy improves outcomes at 90 days post stroke. However, whether the observed benefit is sustained in the long term remains unknown. We report the results of the prespecified 12-month analysis of the REVASCAT trial. METHODS: Patients with acute ischaemic stroke who could be treated within 8 h of symptom onset were randomly assigned to medical therapy (including intravenous alteplase when eligible) and neurovascular thrombectomy with Solitaire FR or medical therapy alone...
March 16, 2017: Lancet Neurology
https://www.readbyqxmd.com/read/28317289/stroke-recurrence-in-patients-with-atrial-fibrillation-concomitant-carotid-artery-stenosis-doubles-the-risk
#4
H Lehtola, K E J Airaksinen, P Hartikainen, J E K Hartikainen, A Palomäki, I Nuotio, A Ylitalo, T Kiviniemi, P Mustonen
BACKGROUND AND PURPOSE: Atrial fibrillation (AF) and significant carotid artery stenosis (CAS) often coexist in patients with acute stroke but whether CAS affects the stroke recurrence rate in anticoagulated AF patients is largely unknown. The effect of concomitant CAS on both short- and long-term prognosis after stroke in patients with AF was evaluated. METHODS: The multicentre, retrospective FibStroke registry included AF patients with an ischaemic stroke or transient ischaemic attack (TIA) during 2003-2012...
March 20, 2017: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/28315303/neuroprotective-effect-of-2-hydroxy-arachidonic-acid-in-a-rat-model-of-transient-middle-cerebral-artery-occlusion
#5
I F Ugidos, M Santos-Galdiano, D Pérez-Rodríguez, B Anuncibay-Soto, E Font-Belmonte, D J López, M Ibarguren, X Busquets, A Fernández López
Stroke modifies the composition of cell membranes by eliciting the breakdown of membrane phospholipids whose products, such as arachidonic acid (AA), are released in the cytosol. The action of enzymes such as cyclooxygenases on AA leads to inflammatory stimuli and increases the cell oxidative stress. We report here the neuroprotective effect of 2-hydroxyarachidonic acid (2OAA), a cyclooxygenase inhibitor derived from AA, as a promising neuroprotective therapy against stroke. The effect of a single dose of 2OAA, administered intragastrically 1 hour after the ischaemic insult, in a rat model of transient middle cerebral artery occlusion (tMCAO) was tested after 24 hours of reperfusion...
March 14, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28302915/sex-differences-in-ischaemic-stroke-potential-cellular-mechanisms
#6
REVIEW
Anjali Chauhan, Hope Moser, Louise D McCullough
Stroke remains a leading cause of mortality and disability worldwide. More women than men have strokes each year, in part because women live longer. Women have poorer functional outcomes, are more likely to need nursing home care and have higher rates of recurrent stroke compared with men. Despite continued advancements in primary prevention, innovative acute therapies and ongoing developments in neurorehabilitation, stroke incidence and mortality continue to increase due to the aging of the U.S. POPULATION: Sex chromosomes (XX compared with XY), sex hormones (oestrogen and androgen), epigenetic regulation and environmental factors all contribute to sex differences...
April 1, 2017: Clinical Science (1979-)
https://www.readbyqxmd.com/read/28300870/effectiveness-and-safety-of-apixaban-versus-warfarin-in-non-valvular-atrial-fibrillation-patients-in-real-world-clinical-practice-a-propensity-matched-analysis-of-76-940-patients
#7
Xiaoyan Li, Steve Deitelzweig, Allison Keshishian, Melissa Hamilton, Ruslan Horblyuk, Kiran Gupta, Xuemei Luo, Jack Mardekian, Keith Friend, Anagha Nadkarni, Xianying Pan, Gregory Y H Lip
The ARISTOTLE trial showed a risk reduction of stroke/systemic embolism (SE) and major bleeding in non-valvular atrial fibrillation (NVAF) patients treated with apixaban compared to warfarin. This retrospective study used four large US claims databases (MarketScan, PharMetrics, Optum, and Humana) of NVAF patients newly initiating apixaban or warfarin from January 1, 2013 to September 30, 2015. After 1:1 warfarin-apixaban propensity score matching (PSM) within each database, the resulting patient records were pooled...
March 16, 2017: Thrombosis and Haemostasis
https://www.readbyqxmd.com/read/28299795/interruption-to-antiplatelet-therapy-early-after-acute-ischaemic-stroke-a-nested-case-control-study
#8
Wardati Mazlan-Kepli, Rachael L MacIsaac, Matthew Walters, Philip Michael William Bath, Jesse Dawson
AIMS: Antiplatelet drugs are often discontinued early after ischaemic stroke, either because of poor compliance, complications or withdrawal of care. It is unclear whether this places patients at increased risk of recurrence. We explored the association between cardiovascular event rate and persistence with prescribed antiplatelet drugs. METHODS: We used a matched case-control design using the Virtual International Stroke Trials Archive (VISTA). Cases were patients who had an acute coronary syndrome, recurrent stroke or transient ischaemic attack within 90 days post-stroke and were matched for age ±10 years and sex with up to four controls...
March 16, 2017: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28295858/non-obstructive-carotid-atherosclerosis-and-patent-foramen-ovale-in-young-adults-with-cryptogenic-stroke
#9
A Jaffre, B Guidolin, J-B Ruidavets, N Nasr, V Larrue
BACKGROUND AND PURPOSE: Up to 50% of ischaemic strokes in young adults are classified as cryptogenic despite extensive work-up. We sought to evaluate the prevalence of non-obstructive carotid atherosclerosis (NOCA) and its association with patent foramen ovale (PFO) in young adults with cryptogenic stroke (CS). METHODS: Patients aged 18-54 years, consecutively treated for first-ever CS in an academic stroke service, were included. NOCA was assessed using carotid ultrasound examination and was defined as carotid plaque with <50% stenosis...
March 15, 2017: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/28291634/bilateral-lingual-artery-stenosis-a-rare-late-complication-of-chemoradiotherapy
#10
F Holtz, Y Monnier, U Borner, L Nisa
INTRODUCTION: Carotid artery stenosis following radiotherapy (RT) is a known risk factor for the development of cerebrovascular disease with a risk of subsequent stroke or transient ischaemic attack. In contrast, small vessel disease in the neck following RT has been more rarely described. CASE REPORT: The authors report the case of a 61-year-old man who developed partial lingual necrosis 4 years after surgery and postoperative chemoradiotherapy for squamous cell carcinoma of the floor of the mouth...
March 10, 2017: European Annals of Otorhinolaryngology, Head and Neck Diseases
https://www.readbyqxmd.com/read/28288997/carotid-artery-dissection-a-rare-complication-of-eagle-syndrome
#11
Rogin Subedi, Ryan Dean, Stamatis Baronos, Amit Dhamoon
Carotid artery dissection is a significant cause of ischaemic stroke in all age groups and accounts for a large percentage of strokes in young patients. Carotid dissection can be caused by trauma, underlying connective tissue disease, hypertension, mechanical injury or can be spontaneous. We present an exceedingly rare case of carotid dissection caused by an elongated styloid process, causing direct mechanical damage to the carotid artery.
March 13, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28287282/cerebrovascular-reactivity-in-acute-hyperoxia-in-patients-with-acute-ischaemic-stroke
#12
Ivana Hegeduš, Jakov Milić, Anita Ćosić, Krunoslav Buljan, Ines Drenjančević
AIM: This study aimed to assess the effect of acute hyperoxia on cerebral and systemic heamodynamics and the plasma concentration of prostacyclin and thromboxane in patients with stroke. METHODS: Mean blood flow velocity (MBFV), pulsatility and resistance indices of the middle cerebral artery using transcranial Doppler ultrasound before and during acute hyperoxia (4 L of 100%O2/15' over facial mask) in 92 participants - 25 patients with acute ischaemic stroke (AIS) that occurred within 72 hours and diabetes mellitus (SPDM), 26 AIS patients without DM (SP) and in 41 healthy controls (HS), were measured...
March 13, 2017: Brain Injury: [BI]
https://www.readbyqxmd.com/read/28286333/early-non-persistence-with-dabigatran-and-rivaroxaban-in-patients-with-atrial-fibrillation
#13
Cynthia A Jackevicius, Meytal Agvil Tsadok, Vidal Essebag, Clare Atzema, Mark J Eisenberg, Jack V Tu, Lingyun Lu, Elham Rahme, P Michael Ho, Mintu Turakhia, Karin H Humphries, Hassan Behlouli, Limei Zhou, Louise Pilote
OBJECTIVE: Dabigatran and rivaroxaban are novel oral anticoagulants (NOACs) approved for stroke prevention in atrial fibrillation (AF). Although NOACs are more convenient than warfarin, their lack of monitoring may predispose patients to non-persistence. Limited information is available on NOAC non-persistence rates and related clinical outcomes in clinical practice. METHODS: We conducted a retrospective cohort study using administrative data from Ontario, Canada, from January 1998 to March 2014 of patients with AF who were dispensed dabigatran or rivaroxaban...
March 12, 2017: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/28285834/reconsidering-the-role-of-decompressive-craniectomy-for-neurological-emergencies
#14
REVIEW
S Honeybul, K M Ho, G R Gillett
OBJECTIVE: There is little doubt that decompressive craniectomy can reduce mortality. However, there is concern that any reduction in mortality comes at an increase in the number of survivors with severe neurological disability. METHOD: Over the past decade there have been several randomised controlled trials comparing surgical decompression with standard medical therapy in the context of ischaemic stroke and severe traumatic brain injury. The results of each trial are evaluated...
March 8, 2017: Journal of Critical Care
https://www.readbyqxmd.com/read/28277064/inhibition-of-nmda-receptor-function-with-an-anti-glun1-s2-antibody-impairs-human-platelet-function-and-thrombosis
#15
Taryn N Green, Justin R Hamilton, Marie-Christine Morel-Kopp, Zhaohua Zheng, Ting-Yu T Chen, James I Hearn, Peng P Sun, Jack U Flanagan, Deborah Young, P Alan Barber, Matthew J During, Christopher M Ward, Maggie L Kalev-Zylinska
GluN1 is a mandatory component of N-methyl-D-aspartate receptors (NMDARs) best known for their roles in the brain, but with increasing evidence for relevance in peripheral tissues, including platelets. Certain anti-GluN1 antibodies reduce brain infarcts in rodent models of ischaemic stroke. There is also evidence that human anti-GluN1 autoantibodies reduce neuronal damage in stroke patients, but the underlying mechanism is unclear. This study investigated whether anti-GluN1-mediated neuroprotection involves inhibition of platelet function...
February 21, 2017: Platelets
https://www.readbyqxmd.com/read/28275901/diagnosis-of-small-posterior-fossa-stroke-on-brain-ct-effect-of-iterative-reconstruction-designed-for-brain-ct-on-detection-performance
#16
Taihei Inoue, Takeshi Nakaura, Morikatsu Yoshida, Koichi Yokoyama, Kenichiro Hirata, Masafumi Kidoh, Seitaro Oda, Daisuke Utsunomiya, Kazunori Harada, Yasuyuki Yamashita
OBJECTIVES: In this study, we aimed to determine whether iterative model reconstruction designed for brain CT (IMR-neuro) would improve the accuracy of posterior fossa stroke diagnosis on brain CT. METHODS: We enrolled 37 patients with ischaemic stroke in the posterior fossa and 37 patients without stroke (controls). Using axial images reconstructed using filtered back-projection (FBP) and IMR-neuro, we compared the CT numbers in infarcted areas, image noise in the pons, and contrast-to-noise ratios (CNRs) of infarcted and non-infarcted areas on scans subjected to IMR-neuro and FBP...
March 8, 2017: European Radiology
https://www.readbyqxmd.com/read/28270423/history-of-migraine-may-indicate-risk-of-ischaemic-stroke
#17
Jacqui Wise
No abstract text is available yet for this article.
March 6, 2017: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/28267216/neurological-manifestations-in-dogs-naturally-infected-by-leishmania-infantum-descriptions-of-10-cases-and-a-review-of-the-literature
#18
REVIEW
A P Giannuzzi, M Ricciardi, A De Simone, F Gernone
In order to evaluate possible nervous system involvement in canine leishmaniasis, retrospective evaluation of all medical records of leishmaniotic dogs exhibiting neurological signs referred to our hospital over a 5-year period was performed. The records of 10 dogs were reviewed. Depending on the neuroanatomical localisation, the dogs underwent advanced diagnostic imaging, cerebrospinal fluid analysis, electrodiagnostic testing and histopathologic evaluations. The final neurological diagnosis was: meningoencephalitis (n=2), brain haemorrhagic stroke (n=1), haemorrhagic choroiditis (n=1), meningomyelitis (n=2), ischaemic myelopathy (n=1), polymyositis (n=2) and peripheral neuropathy (n=1)...
March 2017: Journal of Small Animal Practice
https://www.readbyqxmd.com/read/28265034/extracellular-matrix-inflammation-in-vascular-cognitive-impairment-and-dementia
#19
REVIEW
Gary A Rosenberg
Vascular cognitive impairment and dementia (VCID) include a wide spectrum of chronic manifestations of vascular disease related to large vessel strokes and small vessel disease (SVD). Lacunar strokes and white matter (WM) injury are consequences of SVD. The main vascular risk factor for SVD is brain hypoperfusion from cerebral blood vessel narrowing due to chronic hypertension. The hypoperfusion leads to activation and degeneration of astrocytes with the resulting fibrosis of the extracellular matrix (ECM)...
March 1, 2017: Clinical Science (1979-)
https://www.readbyqxmd.com/read/28263706/effect-of-health-insurance-on-direct-hospitalisation-costs-for-in-patients-with-ischaemic-stroke-in-china
#20
Ma Yong, Xiong Xianjun, Li Jinghu, Fang Yunyun
Objectives The aim of the present study was to determine the direct medical costs of hospitalisations for ischaemic stroke (IS) in-patients with different types of health insurance in China and to analyse the demographic characteristics of hospitalised patients, based on data supplied by the China Health Insurance Research Association (CHIRA).Methods A nationwide and cross-sectional sample of IS in-patients with International Classifications of Diseases 10th Revision (ICD-10) Code I63 who were ensured under either the Basic Medical Insurance Scheme for Employees (BMISE) or the Basic Medical Insurance Scheme for Urban Residents (BMISUR) was extracted from the CHIRA claims database...
March 7, 2017: Australian Health Review: a Publication of the Australian Hospital Association
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