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Stroke Medicine

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https://www.readbyqxmd.com/read/28733991/ph-sensitive-amide-proton-transfer-effect-dominates-the-magnetization-transfer-asymmetry-contrast-during-acute-ischemia-quantification-of-multipool-contribution-to-in-vivo-cest-mri
#1
Yin Wu, Iris Yuwen Zhou, Dongshuang Lu, Emiri Manderville, Eng H Lo, Hairong Zheng, Phillip Zhe Sun
PURPOSE: To determine the origins of in vivo magnetization transfer asymmetry contrast during acute ischemic stroke, particularly in the diffusion lesion, perfusion lesion, and their mismatch using a middle cerebral artery occlusion rat model of acute stroke. METHODS: Adult male Wistar rats underwent multiparametric MRI of diffusion, perfusion, T1 , and amide proton transfer (APT) imaging at 4.7 T following a middle cerebral artery occlusion procedure. A multipool Lorentzian model, including the nuclear Overhauser effect, magnetization transfer, direct water saturation, amine and amide chemical exchange saturation transfer effects, was applied for Z-spectrum fitting to determine the sources of in vivo magnetization transfer asymmetry following acute stroke...
July 21, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/28731036/stroke-in-women-from-evidence-to-inequalities
#2
REVIEW
Charlotte Cordonnier, Nikola Sprigg, Else Charlotte Sandset, Aleksandra Pavlovic, Katharina S Sunnerhagen, Valeria Caso, Hanne Christensen
Stroke is the second largest cause of disability-adjusted life-years lost worldwide. The prevalence of stroke in women is predicted to rise rapidly, owing to the increasing average age of the global female population. Vascular risk factors differ between women and men in terms of prevalence, and evidence increasingly supports the clinical importance of sex differences in stroke. The influence of some risk factors for stroke - including diabetes mellitus and atrial fibrillation - are stronger in women, and hypertensive disorders of pregnancy also affect the risk of stroke decades after pregnancy...
July 21, 2017: Nature Reviews. Neurology
https://www.readbyqxmd.com/read/28717986/thrombolysis-for-stroke-in-ireland-increasing-access-and-maintaining-safety-in-a-challenging-environment
#3
P McElwaine, J McCormack, C Brennan, H Coetzee, P Cotter, R Doyle, A Hickey, F Horgan, C Loughnane, C Macey, P Marsden, D McCabe, R Mulcahy, I Noone, E Shelley, T Stapleton, D Williams, P Kelly, J Harbison
BACKGROUND: In the setting of a national audit of acute stroke services, we examined the delivery of thrombolytic therapy for ischaemic stroke and whether current practice was achieving safe outcomes and consistent delivery for patients. METHOD: Data obtained from the recent national stroke audit was compared against previous Irish audit, the most recent SSNAP UK stroke audit and the Safe Implementation of Thrombolysis in Stroke-Monitoring Study (SITS-MOST) study...
July 17, 2017: Irish Journal of Medical Science
https://www.readbyqxmd.com/read/28714282/variability-of-4d-flow-parameters-when-subjected-to-changes-in-mri-acquisition-parameters-using-a-realistic-thoracic-aortic-phantom
#4
Cristian Montalba, Jesus Urbina, Julio Sotelo, Marcelo E Andia, Cristian Tejos, Pablo Irarrazaval, Daniel E Hurtado, Israel Valverde, Sergio Uribe
PURPOSE: To assess the variability of peak flow, mean velocity, stroke volume, and wall shear stress measurements derived from 3D cine phase contrast (4D flow) sequences under different conditions of spatial and temporal resolutions. METHODS: We performed controlled experiments using a thoracic aortic phantom. The phantom was connected to a pulsatile flow pump, which simulated nine physiological conditions. For each condition, 4D flow data were acquired with different spatial and temporal resolutions...
July 16, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/28713637/regenerative-rehabilitation-an-innovative-and-multifactorial-approach-to-recovery-from-stroke-and-brain-injury
#5
Samantha M Portis, Paul R Sanberg
There is currently a dearth of treatment options for stroke or traumatic brain injury that can restore cognitive and motor function. Regenerative and translational medicine have ushered forth promising new methods for mediating recovery in the central nervous system, the most salient of which are rehabilitation and stem cell therapies that, when combined, result in more pronounced recovery than one approach alone.
2017: Cell Medicine
https://www.readbyqxmd.com/read/28711275/chemotherapy-induced-stroke-mimic-5-fluorouracil-encephalopathy-fulfilling-criteria-for-tissue-plasminogen-activator-therapy
#6
May Thuy Nguyen, Robyn Stoianovici, Luigi Brunetti
Stroke mimics, especially those involving chemotherapy related neurotoxicity, can confound the clinical diagnosis of acute stroke. Here we describe the case of a 63year-old male with a recent history of stage IIIC colon cancer who presented with confusion on the second day of modified FOLFOX6 (5-fluorouracil/oxaliplatin) chemotherapy and subsequently received alteplase, tissue plasminogen activator therapy (tPA), for presumed ischemic stroke. Magnetic resonance imaging scans after tPA administration did not reveal evidence of an infarction and the patients' neurological symptoms resolved completely after discontinuation of 5-fluorouracil (5-FU)...
July 6, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28707073/protective-effects-of-spatholobi-caulis-extract-on-neuronal-damage-and-focal-ischemic-stroke-reperfusion-injury
#7
Hee Ra Park, Heeeun Lee, Jung-Jin Lee, Nam-Hui Yim, Min-Jung Gu, Jin Yeul Ma
Neuronal apoptotic cell death plays an important role in many neurological disorders, including Alzheimer's disease, Parkinson's disease, and ischemic stroke. Spatholobi Caulis (SC) has been widely used in traditional herbal medicine for the treatment of cancer, inflammation, viral infection, and anemia. However, the protective effects of SC extract (SCE) against apoptotic cell death in the brain have not been reported. We investigated the protective effects of SCE against neuronal injury etoposide-induced neurotoxicity and in rats subjected to focal transient ischemic stroke middle cerebral artery occlusion (MCAO) for 45 min, followed by 7 days of reperfusion...
July 13, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28705269/regional-variations-in-medication-usage-for-cardiovascular-diseases-at-the-community-level-in-china-pure-china-study
#8
Jin Gang Yang, Hong Qiu Gu, Jian Bo, Yang Wang, Wei Li
We investigated the usage of secondary prevention drugs and traditional Chinese medicine (TCM) products in individuals with cardiovascular diseases (CVDs) at the community level in China. Among 2,407 participants with self-reported coronary heart disease (CHD) and 872 with stroke, nearly 80% of individuals with CHD and 73% of individuals with stroke were not taking any proven secondary prevention drug. However, 32.9% of them took TCM products. Patients with CVDs in rural areas used less secondary prevention treatment, but more TCM products than their counterparts in the urban regions...
June 2017: Biomedical and Environmental Sciences: BES
https://www.readbyqxmd.com/read/28704580/efficient-discovery-and-capture-of-new-neuronal-nitric-oxide-synthase-postsynaptic-density-protein-95-uncouplers-from-herbal-medicines-using-magnetic-molecularly-imprinted-polymers-as-artificial-antibodies
#9
Xiaoli Gu, Jiaojiao Huang, Lei Zhang, Yu Zhang, Chong-Zhi Wang, Chenghong Sun, Dandan Yao, Fei Li, Lina Chen, Chun-Su Yuan
In the scope of stroke treatment, new neuronal nitric oxide synthase-postsynaptic density protein-95 uncouplers from herbal medicines were discovered and captured. To do so, highly selective magnetic molecularly imprinted polymers with a core-shell structure were prepared as artificial antibodies. According to the results of computational simulations, we designed and synthesized various polymers with varying amounts and types of template, functional monomer, cross-linker and solvent. Characterization and performance tests revealed that the most appropriate artificial antibodies showed uniform spherical morphologies, large adsorption capacities, fast binding kinetics, high selectivity and quick separation...
July 13, 2017: Journal of Separation Science
https://www.readbyqxmd.com/read/28697713/an-update-of-the-italian-stroke-organization-stroke-prevention-awareness-diffusion-group-guidelines-on-carotid-endarterectomy-and-stenting-a-personalized-medicine-approach
#10
Gaetano Lanza, Carlo Setacci, Stefano Ricci, Patrizio Castelli, Alberto Cremonesi, Jessica Lanza, Claudio Novali, Carlo Pratesi, Paola Santalucia, Francesco Speziale, Augusto Zaninelli, Gian Franco Gensini
Although proof-based medicine has generated much valid evidence for the drawing up of guidelines and recommendations for best clinical practice in symptomatic and asymptomatic carotid stenosis, whether and when it is better to employ endarterectomy or stenting as the intervention of choice still remain matters of debate. Moreover, guidelines have been targeted up to now to the 'representative' patient, as resulting from the statistical analyses of the studies conducted on the safety and efficacy of both interventions as well as on medical therapy alone...
July 2017: International Journal of Stroke: Official Journal of the International Stroke Society
https://www.readbyqxmd.com/read/28696250/american-heart-association-s-call-to-action-for-payment-and-delivery-system-reform
#11
REVIEW
Vincent J Bufalino, Scott A Berkowitz, Timothy J Gardner, Ileana L Piña, Madeleine Konig
The healthcare system is undergoing a transition from paying for volume to paying for value. Clinicians, as well as public and private payers, are beginning to implement alternative delivery and payment models, such as the patient-centered medical home, accountable care organizations, and bundled payment arrangements. Implementation of these new models will necessitate delivery system transformation and will actively involve all fields of medical care, in particular medicine and surgery. This call to action, on behalf of the American Heart Association's Expert Panel on Payment and Delivery System Reform, serves to offer support and direction for further involvement by the American Heart Association...
July 10, 2017: Circulation
https://www.readbyqxmd.com/read/28692217/-magnesium-in-daily-practice
#12
Dany Minetto, Jacques Serratrice, Jérôme Stirnemann
The magnesium is the 4th cation in the human body behind sodium, potassium and calcium. It is often referred to as the forgotten cation of modern medicine because of a lack of knowledge about its physiology and its potential medical use. Recent medical literature has shown renewed interest for the magnesium with publications about its role in diversified fields from prevention of muscular cramps, cardiovascular risk factors prevention trough to neuroprotection in stroke. However, we cannot recommend the use of magnesium in adults in our clinical practice, beyond the simple correction of hypomagnesemia, pre-eclampsia and possibly the treatment of torsades de pointes...
October 19, 2016: Revue Médicale Suisse
https://www.readbyqxmd.com/read/28688998/targeted-temperature-management-in-the-icu-guidelines-from-a-french-expert-panel
#13
Alain Cariou, Jean-Francois Payen, Karim Asehnoune, Gerard Audibert, Astrid Botte, Olivier Brissaud, Guillaume Debaty, Sandrine Deltour, Nicolas Deye, Nicolas Engrand, Gilles Francony, Stéphane Legriel, Bruno Levy, Philippe Meyer, Jean-Christophe Orban, Sylvain Renolleau, Bernard Vigue, Laure De Saint Blanquat, Cyrille Mathien, Lionel Velly
Over the recent period, the use of induced hypothermia has gained an increasing interest for critically ill patients, in particular in brain-injured patients. The term "targeted temperature management" (TTM) has now emerged as the most appropriate when referring to interventions used to reach and maintain a specific level temperature for each individual. TTM may be used to prevent fever, to maintain normothermia, or to lower core temperature. This treatment is widely used in intensive care units, mostly as a primary neuroprotective method...
July 5, 2017: Anaesthesia, Critical Care & Pain Medicine
https://www.readbyqxmd.com/read/28684970/the-effects-of-chunghyul-dan-an-agent-of-korean-medicine-on-a-mouse-model-of-traumatic-brain-injury
#14
Won-Woo Choi, Kyungjin Lee, Beom-Joon Lee, Seong-Uk Park, Jung-Mi Park, Chang-Nam Ko, Youngmin Bu
Chunghyul-Dan (CHD) is the first choice agent for the prevention and treatment of stroke at the Kyung Hee Medical Hospital. To date, CHD has been reported to have beneficial effects on brain disease in animals and humans, along with antioxidative and anti-inflammatory effects. The aim of this study was to evaluate the pharmacological effects of CHD on a traumatic brain injury (TBI) mouse model to explore the possibility of CHD use in patients with TBI. The TBI mouse model was induced using the controlled cortical impact method...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28684051/patent-foramen-ovale-closure-to-prevent-secondary-neurologic-events
#15
REVIEW
Rosie Jasper, James C Blankenship
In October of 2016 the United States Food and Drug Administration approved the Amplatzer Patent Foramen Ovale (PFO) occluder device for use in patients with cryptogenic stroke, to reduce the risk of recurrent stroke. This event followed 15years of off-label use of atrial septal occluder devices, 3 randomized trials, and enormous controversy over the efficacy of this procedure. While none of the trials reached the primary endpoint needed to prove the efficacy of PFO closure in preventing recurrent stroke, meta-analyses and 5-year follow-up of 1 trial suggest that PFO closure decreases the risk of recurrent stroke, especially in sub-groups with large shunts and atrial septal aneurysms, and especially when the Amplatzer device (rather than other devices) is used...
July 3, 2017: European Journal of Internal Medicine
https://www.readbyqxmd.com/read/28682461/influence-of-decision-aids-on-oral-anticoagulant-prescribing-among-physicians-a-randomized-trial
#16
Cristian Baicus, Caterina Delcea, Alina Dima, Emilia Oprisan, Ciprian Jurcut, Gheorghe Andrei Dan
BACKGROUND: Oral anticoagulants (OAC) are underused in treatment of atrial fibrillation (AF), with differences in patient and physician preferences. For risk communication, the graphic showing risks on treatment contains all the information, therefore the graphic showing risks without treatment may not be necessary. Here, our objective was to assess whether decision aids require information of risks without treatment and specifically whether presentation of 5-year stroke risk in patients with AF increases use of OACs compared with presentation of 1-year risk and whether decisions on treatment are different when physicians decide their own treatment versus that of the patient...
July 6, 2017: European Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28681742/the-effect-of-sensory-level-electrical-stimulation-of-the-masseter-muscle-in-early-stroke-patients-with-dysphagia-a-randomized-controlled-study
#17
Ebru K Umay, Atilay Yaylaci, Guleser Saylam, Ibrahim Gundogdu, Eda Gurcay, Dehen Akcapinar, Zeynep Kirac
BACKGROUND: Dysphagia is a serious cause of morbidity and mortality in stroke patients. AIMS: As the first study in literature, we aimed to evaluate the effects of sensory-level electrical stimulation (SES) to bilateral masseter muscles in early stroke patients with dysphagia. SETTINGS AND DESIGN: This study was conducted at the Physical Medicine and Rehabilitation Clinic of our hospital between 2013 and 2015. MATERIALS AND METHODS: Ninety-eight patients with dysphagia within the first month after ischemic stroke were included in this study...
July 2017: Neurology India
https://www.readbyqxmd.com/read/28664144/acute-toxicity-and-genotoxicity-of-fermented-traditional-medicine-oyaksungi-san
#18
Hwayong Park, Youn-Hwan Hwang, Jin Yeul Ma
BACKGROUND: The traditional medicine oyaksungi-san (OY) has been prescribed in East Asia for hundreds of years for the treatment of stroke, paralysis, and ataxia. OY also has therapeutic effects on arthralgia, myalgia, and rheumatoid arthritis, and recent studies have shown its protective effects against apoptosis of hippocampal cells and its anti-inflammatory effects on the peripheral blood cells of patient with cerebral infarction. Many studies have explored the use of traditional medicine and herb materials in the development of safe, novel, and effective pharmaceuticals with fewer side effects...
June 2017: Integrative medicine research
https://www.readbyqxmd.com/read/28659289/moving-forward-with-steady-strokes-in-paralympic-sports-medicine
#19
EDITORIAL
Hilde Moseby Berge
No abstract text is available yet for this article.
July 2017: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/28656344/-the-importance-of-neuronal-networks-for-motor-rehabilitation-after-a-stroke
#20
REVIEW
F C Hummel
Every year in Europe 1.5 million patients suffer a new stroke. Despite the further developments in acute therapy with nationwide stroke units, thrombolysis, thrombectomy and post-acute neurorehabilitation, only a small proportion of patients recover to a satisfactory degree allowing them to return to their normal social and professional life. This makes stroke the main cause of long-term disability with a corresponding impact on patient lives, socioeconomics and the healthcare system. Thus, the concepts of neurorehabilitation have to be extended to enhance the effects of rehabilitative treatment strategies...
June 27, 2017: Der Nervenarzt
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