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Small vessel cerebrovascular disease

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https://www.readbyqxmd.com/read/28334869/emerging-concepts-in-sporadic-cerebral-amyloid-angiopathy
#1
Andreas Charidimou, Gregoire Boulouis, M Edip Gurol, Cenk Ayata, Brian J Bacskai, Matthew P Frosch, Anand Viswanathan, Steven M Greenberg
Sporadic cerebral amyloid angiopathy is a common, well-defined small vessel disease and a largely untreatable cause of intracerebral haemorrhage and contributor to age-related cognitive decline. The term 'cerebral amyloid angiopathy' now encompasses not only a specific cerebrovascular pathological finding, but also different clinical syndromes (both acute and progressive), brain parenchymal lesions seen on neuroimaging and a set of diagnostic criteria-the Boston criteria, which have resulted in increasingly detected disease during life...
March 13, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/28329254/periodic-limb-movements-and-white-matter-hyperintensities-in-first-ever-minor-stroke-or-high-risk-tia
#2
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/28328569/mid-term-follow-up-of-minimally-invasive-multivessel-coronary-artery-bypass-grafting-is-the-early-learning-phase-detrimental
#3
Maria Lorena Rodriguez, Harry R Lapierre, Benjamin Sohmer, David Glineur, Marc Ruel
OBJECTIVE: Minimally invasive coronary artery bypass grafting (MICS CABG) through a small left thoracotomy is a novel technique for surgical coronary revascularization, which is increasingly being adopted around the world. This study aimed to describe the characteristics and mid-term outcomes of a series of MICS CABG to identify areas for improvement. METHODS: A prospective longitudinal study was performed on the 306 MICS CABG patients operated on by a single surgeon from 2005 to 2015...
March 22, 2017: Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery
https://www.readbyqxmd.com/read/28315199/hiv-infection-and-risk-of-cardiovascular-diseases-beyond-coronary-artery-disease
#4
REVIEW
Revery P Barnes, John Charles A Lacson, Hossein Bahrami
PURPOSE OF REVIEW: Cardiovascular disease (CVD) increasingly afflicts people living with HIV (PLWH) in the contemporary era of antiretroviral therapy (ART). Coronary artery disease (CAD) is the most widely studied cardiovascular problem in PLWH; however, less is known about other clinically relevant subtypes of CVD such as heart failure (HF), cerebrovascular disease, sudden cardiac death, pericardial diseases, and pulmonary hypertension. This paper reviews evidence of other subtypes of CVD as emerging issues in the post-ART era...
May 2017: Current Atherosclerosis Reports
https://www.readbyqxmd.com/read/28314762/cerebral-microhemorrhages-mechanisms-consequences-and-prevention
#5
Zoltan I Ungvari, Stefano Tarantini, Angelia C Kirkpatrick, Anna Csiszar, Calin I Prodan
The increasing prevalence of multifocal cerebral microhemorrhages (CMHs, also known as "cerebral microbleeds") is a significant, newly recognized problem in the aging population of the Western world. CMHs are associated with rupture of small intracerebral vessels and are thought to progressively impair neuronal function, potentially contributing to cognitive decline, geriatric psychiatric syndromes and gait disorders. Clinical studies show that aging and hypertension significantly increase prevalence of CMHs...
March 17, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/28291634/bilateral-lingual-artery-stenosis-a-rare-late-complication-of-chemoradiotherapy
#6
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/28285092/visceral-to-subcutaneous-fat-ratio-is-independently-related-to-small-and-large-cerebrovascular-lesions-even-in-healthy-subjects
#7
Satoshi Higuchi, Yusuke Kabeya, Kiyoe Kato
BACKGROUND AND AIMS: The severity of obesity is evaluated by visceral-to-subcutaneous fat ratio (VS ratio), which may be useful for predicting atherosclerosis. However, it is unclear how VS ratio affects different types of cerebrovascular lesions. This study was conducted to evaluate the clinical impact of visceral fat accumulation on the cerebrovascular lesions. METHODS: This cross-sectional study included 980 apparently healthy Japanese adults who underwent a health check-up program focused toward atherosclerosis, between 2011 and 2014...
March 2, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28261756/association-between-hyperhomocysteinemia-and-stroke-with-atherosclerosis-and-small-artery-occlusion-depends-on-homocysteine-metabolism-related-vitamin-levels-in-chinese-patients-with-normal-renal-function
#8
Guan-Hui Wu, Fan-Zhen Kong, Xiao-Feng Dong, De-Feng Wu, Qian-Zhu Guo, Ai-Rong Shen, Qing-Zhang Cheng, Wei-Feng Luo
This study was conducted to investigate the role of different homocysteine metabolism-related vitamin (HMRV) levels in the correlation between hyperhomocysteinemia (HHCY) and ischemic stroke (IS) subtypes. Three hundred and forty-eight IS patients manifesting different vascular subtypes were subclassified on the basis of HMRV deficiencies. Correlation between HHCY and IS subtypes was investigated in all the subgroups. In this study, HHCY was significantly correlated with the IS subtypes in large artery atherosclerosis (OR 1...
March 6, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/28255864/hyperinsulinemia-and-elevated-systolic-blood-pressure-independently-predict-white-matter-hyperintensities-with-associated-cognitive-decrement-in-the-middle-aged-offspring-of-dementia-patients
#9
Keith A Hawkins, Nazli Emadi, Godfrey D Pearlson, Anderson M Winkler, Beth Taylor, Latha Dulipsingh, Diana King, Brian Pittman, Karen Blank
Cerebrovascular disease is an independent risk factor for dementia that may also be synergistic with Alzheimer's disease. In recent years attention has switched from cerebral infarcts to microvascular disease as the primary cause of cerebrovascular cognitive decline, with damage to the white matter the primary mechanism. Uncertainties remain regarding the risks posed by different types vascular threat, the extent to which cerebrovascular damage occurs in middle age, and whether relatively "normal" amounts of white matter damage are accompanied by meaningful degrees of cognitive decline...
March 3, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/28215260/moderate-to-severe-obstructive-sleep-apnea-is-associated-with-cerebral-small-vessel-disease
#10
Tae-Jin Song, Jung-Hyun Park, Kang Hyun Choi, Yoonkyung Chang, Jangsup Moon, Ju-Hee Kim, Yunseo Choi, Yong-Jae Kim, Hyang Woon Lee
BACKGROUND: Cerebral small vessel disease (SVD) is associated with increased risk of cerebral infarction and hemorrhage. Obstructive sleep apnea (OSA) is known to increase the risk of cerebrovascular disease. This study aimed to investigate the association between cerebral SVD and severity of OSA. METHODS: A total of 170 patients were included from the patient registry at the present Sleep Center; these patients underwent both magnetic resonance imaging (MRI) of the brain and polysomnography (PSG) for suspected OSA...
February 2017: Sleep Medicine
https://www.readbyqxmd.com/read/28159390/sickle-cell-disease
#11
REVIEW
Russell E Ware, Mariane de Montalembert, Léon Tshilolo, Miguel R Abboud
Sickle cell disease is a common and life-threatening haematological disorder that affects millions of people worldwide. Abnormal sickle-shaped erythrocytes disrupt blood flow in small vessels, and this vaso-occlusion leads to distal tissue ischaemia and inflammation, with symptoms defining the acute painful sickle-cell crisis. Repeated sickling and ongoing haemolytic anaemia, even when subclinical, lead to parenchymal injury and chronic organ damage, causing substantial morbidity and early mortality. Currently available treatments are limited to transfusions and hydroxycarbamide, although stem cell transplantation might be a potentially curative therapy...
January 31, 2017: Lancet
https://www.readbyqxmd.com/read/28154097/cerebral-vascular-disease-and-neurovascular-injury-in-ischemic-stroke
#12
Xiaoming Hu, T Michael De Silva, Jun Chen, Frank M Faraci
The consequences of cerebrovascular disease are among the leading health issues worldwide. Large and small cerebral vessel disease can trigger stroke and contribute to the vascular component of other forms of neurological dysfunction and degeneration. Both forms of vascular disease are driven by diverse risk factors, with hypertension as the leading contributor. Despite the importance of neurovascular disease and subsequent injury after ischemic events, fundamental knowledge in these areas lag behind our current understanding of neuroprotection and vascular biology in general...
February 3, 2017: Circulation Research
https://www.readbyqxmd.com/read/28143595/elevated-blood-viscosity-is-associated-with-cerebral-small-vessel-disease-in-patients-with-acute-ischemic-stroke
#13
Seung Hoon Song, Jeong Hee Kim, Joon Hwa Lee, Yeo-Min Yun, Dong-Hee Choi, Hahn Young Kim
BACKGROUND: Increased level of blood viscosity, which is one of the major factors that determine blood rheology, has been reported as a risk factor or predictor for cerebrovascular events. We investigated how blood viscosity is associated with acute stroke and chronic radiological manifestations of cerebral small vessel disease, and how blood viscosity changes after stroke. METHODS: We prospectively enrolled consecutive patients with acute ischemic stroke. Whole blood viscosities at a low or high shear rate were measured using a scanning capillary tube viscometer, and were referred to as diastolic blood viscosity (DBV) and systolic blood viscosity (SBV), respectively...
January 31, 2017: BMC Neurology
https://www.readbyqxmd.com/read/28135646/gap-free-segmentation-of-vascular-networks-with-automatic-image-processing-pipeline
#14
Chih-Yang Hsu, Mahsa Ghaffari, Ali Alaraj, Michael Flannery, Xiaohong Joe Zhou, Andreas Linninger
Current image processing techniques capture large vessels reliably but often fail to preserve connectivity in bifurcations and small vessels. Imaging artifacts and noise can create gaps and discontinuity of intensity that hinders segmentation of vascular trees. However, topological analysis of vascular trees require proper connectivity without gaps, loops or dangling segments. Proper tree connectivity is also important for high quality rendering of surface meshes for scientific visualization or 3D printing...
March 1, 2017: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/28123058/procalcitonin-and-midregional-proatrial-natriuretic-peptide-as-biomarkers-of-subclinical-cerebrovascular-damage-the-northern-manhattan-study
#15
Mira Katan, Yeseon Moon, Arnold von Eckardstein, Kathartina Spanaus, Janet DeRosa, Jose Gutierrez, Charles DeCarli, Clinton Wright, Ralph Sacco, Mitchell Elkind
BACKGROUND AND PURPOSE: Chronic infections and cardiac dysfunction are risk factors for stroke. We hypothesized that blood biomarkers of infection (procalcitonin) and cardiac dysfunction (midregional proatrial natriuretic peptide [MR-proANP]), previously associated with small vessel stroke and cardioembolic stroke are also associated with subclinical cerebrovascular damage, including silent brain infarcts and white matter hyperintensity volume. METHODS: The NOMAS (Northern Manhattan Study) was designed to assess risk factors for incident vascular disease in a multiethnic cohort...
March 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28104915/visceral-obesity-is-associated-with-white-matter-hyperintensity-and-lacunar-infarct
#16
K W Kim, H Seo, M-S Kwak, D Kim
BACKGROUND: The presences of white matter hyperintensity (WMH) and lacunar infarct are recognized as risk factors of dementia, stroke, and mortality. It is undetermined whether visceral adipose tissue (VAT) area is associated with an increased risk of cerebral small vessel disease. We explored whether VAT area was responsible for cerebral small vessel disease through the identification of WMH and lacunar infarct. SUBJECTS: A total of 2046 subjects free of cerebrovascular disease who underwent brain magnetic resonance imaging (MRI) and abdominal fat computed tomography (CT) during a general health check-up were enrolled...
January 20, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28089903/advances-in-mr-angiography-with-7t-mri-from-microvascular-imaging-to-functional-angiography
#17
Chan-A Park, Chang-Ki Kang, Young-Bo Kim, Zang-Hee Cho
Over the past few decades, vascular flow-dependent imaging techniques have proven to be effective for the visualization of large vessel diseases. However, these approaches are unlikely to be efficacious for small vessels because the affected small vessels cannot always be visualized directly, owing to a lack of detection sensitivity. Recently, many researchers have introduced state-of-the-art imaging techniques to visualize cerebral microvessels using ultra-high-field (UHF) magnetic resonance angiography (MRA)...
January 13, 2017: NeuroImage
https://www.readbyqxmd.com/read/28089760/enhanced-long-term-brain-magnetic-resonance-imaging-evaluation-of-children-with-sickle-cell-disease-after-hematopoietic-cell-transplantation
#18
Nancy S Green, Monica Bhatia, Erica Y Griffith, Mahvish Qureshi, Courtney Briamonte, Mirko Savone, Stephen Sands, Margaret T Lee, Angela Lignelli, Adam M Brickman
Progressive neurovasculopathy in children with sickle cell disease (SCD) results in decreased cognitive function and quality of life (QoL). Hematopoietic cell transplantation (HCT) is believed to halt progression of neurovasculopathy. Quantitative analysis of T2-weighted fluid attenuated inversion recovery (FLAIR) magnetic resonance imaging (MRI) for white matter hyperintensity (WMH) burden provides a meaningful estimate of small vessel cerebrovascular disease. We asked if quantitative analysis of WMH could complement standardized clinical assessment of MRI/magnetic resonance angiography (MRA) for assessing SCD central nervous system vasculopathy before and after HCT...
January 9, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28088807/posterior-versus-anterior-circulation-stroke-in-young-adults-a-comparative-study-of-stroke-aetiologies-and-risk-factors-in-stroke-among-young-fabry-patients-sifap1
#19
Bettina von Sarnowski, Ulf Schminke, Ulrike Grittner, Christian Tanislav, Tobias Böttcher, Michael G Hennerici, Turgut Tatlisumak, Jukka Putaala, Manfred Kaps, Franz Fazekas, Christian Enzinger, Arndt Rolfs, Christof Kessler
BACKGROUND: Although 20-30% of all strokes occur in the posterior circulation, few studies have explored the characteristics of patients with strokes in the posterior compared to the anterior circulation so far. Especially data on young patients is missing. METHODS: In this secondary analysis of data of the prospective multi-centre European sifap1 study that investigated stroke and transient ischemic attack (TIA) patients aged 18-55 years, we compared vascular risk factors, stroke aetiology, presence of white matter hyperintensities (WMH) and cerebral microbleeds (CMB) between patients with ischaemic posterior circulation stroke (PCS) and those having suffered from anterior circulation stroke (ACS) based on cerebral MRI...
January 14, 2017: Cerebrovascular Diseases
https://www.readbyqxmd.com/read/28048545/we-de-207a-04-advances-in-radiological-neuro-endovascular-interventional-imaging
#20
S Rudin
1. Parallels in the evolution of x-ray angiographic systems and devices used for minimally invasive endovascular therapy Charles Strother - DSA, invented by Dr. Charles Mistretta at UW-Madison, was the technology which enabled the development of minimally invasive endovascular procedures. As DSA became widely available and the potential benefits for accessing the cerebral vasculature from an endovascular approach began to be apparent, industry began efforts to develop tools for use in these procedures. Along with development of catheters, embolic materials, pushable coils and the GDC coils there was simultaneous development and improvement of 2D DSA image quality and the introduction of 3D DSA...
June 2016: Medical Physics
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