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Cerebral vasculopathy

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https://www.readbyqxmd.com/read/29324900/internal-carotid-artery-stenosis-a-novel-surgical-model-for-moyamoya-syndrome
#1
Jill M Roberts, Michael E Maniskas, Justin F Fraser, Gregory J Bix
Moyamoya is a cerebrovascular disorder characterized by progressive stenosis of the intracranial internal carotid arteries. There are two forms: Disease and Syndrome, with each characterized by the sub-population it affects. Moyamoya syndrome (MMS) is more prominent in adults in their 20's-40's, and is often associated with autoimmune diseases. Currently, there are no surgical models for inducing moyamoya syndrome, so our aim was to develop a new animal model to study this relatively unknown cerebrovascular disease...
2018: PloS One
https://www.readbyqxmd.com/read/29322432/renal-histopathological-findings-of-retinal-vasculopathy-with-cerebral-leukodystrophy
#2
Yutaka Tsubata, Takashi Morita, Tetsuo Morioka, Taiji Sasagawa, Kouzo Ikarashi, Noriko Saito, Hisaki Shimada, Shigeru Miyazaki, Shinji Sakai, Hajime Tanaka, Rie Saito, Yasuko Toyoshima, Hiroaki Nozaki, Ichiei Narita
Retinal vasculopathy with cerebral leukodystrophy (RVCL) is a rare autosomal dominant systemic microvascular disease. Neurological disorders and visual disturbance are highlighted as manifestations of RVCL; however, there are few reports focused on nephropathy. Herein, we describe detailed renal histopathological findings in a daughter and father with RVCL, proven by TREX1 genetic analysis. A kidney biopsy of the daughter, 35-year-old with asymptomatic proteinuria, revealed unique and various glomerular changes...
January 10, 2018: CEN Case Reports
https://www.readbyqxmd.com/read/29285484/undesired-outcomes-of-the-catania-stent-compared-to-the-xience-stent-in-patients-undergoing-angioplasty-a-double-blind-randomized-controlled-trial
#3
Masoud Pourmoghaddas, Hamid Reza Rohani, Hamid Sanei, Afshin Amirpour
Background: The present study tries to compare the unintended outcomes of the Catania stent versus Xience stent in patients undergoing angioplasty. Materials and Methods: In a three month, follow-up, double-blinded, randomized controlled trial, 83 patients undergoing angioplasty, who met the inclusion criteria were entered into the study. After randomization 43 patients were treated with the Xience stent and 40 patients with the Catania stent. Stent-related outcomes such as Cardiac and Non-Cardiovascular Death, Myocardial Infarction (MI), Target Lesion Revascularization (TLR), Stent Thrombosis (ST), Coronary Artery Bypass Grafting (CABG), Peripheral vasculopathy, and Cerebral Vascular Accident (CVA) were compared between the groups...
2017: Advanced Biomedical Research
https://www.readbyqxmd.com/read/29276569/fulminant-reversible-cerebral-vasoconstriction-syndrome
#4
Kushak Suchdev, Gregory Norris, Imad Zak, Wazim Mohamed, Mohammed Ibrahim
Reversible cerebral vasoconstriction syndrome (RCVS) is increasingly being recognized as a diagnosis in patients presenting with thunderclap headaches. In the vast majority of the cases, the syndrome follows a benign course and patients recover completely without any significant therapeutic intervention. In the rarest of cases, RCVS follows a monophasic course with rapid worsening, severe neurological deficits, and poor outcomes. We present the case of a 25-year-old female who presented with headaches which were worsening over 1 week...
January 2018: Neurohospitalist
https://www.readbyqxmd.com/read/29274451/treatment-of-progressive-herpes-zoster-induced-vasculopathy-with-surgical-revascularization-effects-on-cerebral-hemodynamics
#5
Sarah K Lants, Jennifer M Watchmaker, Meher R Juttukonda, Larry T Davis, Manus J Donahue, Matthew R Fusco
BACKGROUND: Herpes zoster ophthalmicus (HZO) is caused by the reactivation of the herpes simplex virus in the trigeminal nerve. HZO-initiated cerebral vasculopathy is well-characterized, however there are no documented cases that report the efficacy of surgical revascularization for improving cerebral hemodynamics following progressive HZO-induced vasculopathy. We present a case where quantitative anatomical and hemodynamic imaging were performed longitudinally before and after surgical revascularization in a patient with HZO and vasculopathic changes...
December 20, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29273593/novel-susceptibility-loci-for-moyamoya-disease-revealed-by-a-genome-wide-association-study
#6
Lian Duan, Ling Wei, Yanghua Tian, Zhengshan Zhang, Panpan Hu, Qiang Wei, Sugang Liu, Jun Zhang, Yuyang Wang, Desheng Li, Weizhong Yang, Rui Zong, Peng Xian, Cong Han, Xiangyang Bao, Feng Zhao, Jie Feng, Wei Liu, Wuchun Cao, Guoping Zhou, Chunyan Zhu, Fengqiong Yu, Weimin Yang, Yu Meng, Jingye Wang, Xianwen Chen, Yu Wang, Bing Shen, Bing Zhao, Jinghai Wan, Fengyu Zhang, Gang Zhao, Aimin Xu, Xuejun Zhang, Jianjun Liu, Xianbo Zuo, Kai Wang
BACKGROUND AND PURPOSE: Moyamoya disease (MMD) is a rare cerebral vasculopathy characterized by bilateral internal carotid artery stenosis and often leads to stroke in children or young adults. Although familial inheritance is well recognized, the genetic basis of MMD remains poorly understood. METHODS: A 2-stage genome-wide association study was conducted involving 1492 cases and 5084 controls. In the discovery stage, logistic regression was used to test associations, and imputation was conducted based on genotyped single-nucleotide polymorphisms (SNPs)...
January 2018: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/29244749/serum-levels-of-s100b-and-nse-proteins-in-patients-with-non-transfusion-dependent-thalassemia-as-biomarkers-of-brain-ischemia-and-cerebral-vasculopathy
#7
Aikaterini Kanavaki, Konstantinos Spengos, Maria Moraki, Polyxeni Delaporta, Catherine Kariyannis, Ioannis Papassotiriou, Antonis Kattamis
Patients with non-transfusion-dependent thalassemia (NTDT) are at risk of developing brain ischemia. Transcranial Doppler (TCD) has been established as a useful screening tool of cerebrovascular disease in patients with sickle cell disease. Proteins neuron specific enolase (NSE) and S100B are biomarkers that reflect CNS injury. The purpose of this study is to evaluate cerebral vessel vasculopathy and brain damage in NTDT patients using non-invasive methods as TCD and measurement serum levels of NSE and S100B...
December 15, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29222944/cerebral-microbleeds-an-mri-review-of-common-and-less-common-causes
#8
REVIEW
Dimitri Renard
Cerebral microbleeds (CMB) are small foci of (acute, subacute, or chronic) blood products, best seen using MRI techniques sensitive to iron deposits (i.e. gradient-echo T2*-weighted and susceptibility-weighted imaging), frequently encountered in small vessel disease (SVD, with hypertensive vasculopathy and cerebral amyloid angiopathy as most frequent conditions) and also in other disorders. In this review, we will mainly discuss the MRI characteristics of CMB and the associated MRI abnormalities encountered in common and less common SVD and non-SVD conditions...
December 9, 2017: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/29205668/cerebrovascular-blood-pressure-autoregulation-monitoring-and-postoperative-transient-ischemic-attack-in-pediatric-moyamoya-vasculopathy
#9
Jennifer K Lee, Monica Williams, Michael Reyes, Edward S Ahn
BACKGROUND: Children with moyamoya vasculopathy are at high risk of perioperative cerebral ischemia or hyperperfusion. Maintaining blood pressure within the range of functional cerebrovascular blood pressure autoregulation might reduce the risk of perioperative neurologic injury. AIMS: We tested whether blood pressure autoregulation is associated with postoperative transient ischemic attack in a study of patients with pediatric moyamoya vasculopathy. METHODS: We conducted an observational study of 15 pediatric patients undergoing surgical revascularization with pial synangiosis...
December 5, 2017: Paediatric Anaesthesia
https://www.readbyqxmd.com/read/29201555/background-and-distribution-of-lobar-microbleeds-in-cognitive-dysfunction
#10
Hirofumi Matsuyama, Yuichiro Ii, Masayuki Maeda, Maki Umino, Yukito Ueda, Ken-Ichi Tabei, Hirotaka Kida, Masayuki Satoh, Akihiro Shindo, Akira Taniguchi, Ryosuke Takahashi, Hidekazu Tomimoto
Objectives: Cerebral microbleeds (CMBs) are often observed in memory clinic patients. It has been generally accepted that deep CMBs (D-CMBs) result from hypertensive vasculopathy (HV), whereas strictly lobar CMBs (SL-CMBs) result from cerebral amyloid angiopathy (CAA) which frequently coexists with Alzheimer's disease (AD). Mixed CMBs (M-CMBs) have been partially attributed to HV and also partially attributed to CAA. The aim of this study was to elucidate the differences between SL-CMBs and M-CMBs in terms of clinical features and regional distribution...
November 2017: Brain and Behavior
https://www.readbyqxmd.com/read/29190619/ruptured-de-novo-aneurysm-following-gamma-knife-surgery-for-arteriovenous-malformation-case-report
#11
Yun-Sik Dho, Dong Gyu Kim, Hyun-Tai Chung
Stereotactic radiosurgery is a well-known treatment tool for arteriovenous malformations (AVMs). The method has high validity and minimal invasiveness, but late-onset problems involving tumor formation and vasculopathy induced by radiation have been reported. We present a rare case of a radiation-induced ruptured de novo aneurysm following Gamma Knife surgery (GKS) for an AVM. A 17-year-old, right-handed male underwent GKS for AVM at the left parietal lobe. After 3 years, a follow-up angiogram showed a residual AVM at the angular gyrus...
December 1, 2017: Stereotactic and Functional Neurosurgery
https://www.readbyqxmd.com/read/29183952/cerebellar-hematoma-location-implications-for-the-underlying-microangiopathy
#12
Marco Pasi, Sandro Marini, Andrea Morotti, Gregoire Boulouis, Li Xiong, Andreas Charidimou, Alison M Ayres, Myung Joo Lee, Alessandro Biffi, Joshua N Goldstein, Jonathan Rosand, M Edip Gurol, Steven M Greenberg, Anand Viswanathan
BACKGROUND AND PURPOSE: Spontaneous cerebellar intracerebral hemorrhage (ICH) has been reported to be mainly associated with vascular changes secondary to hypertension. However, a subgroup of cerebellar ICH seems related to vascular amyloid deposition (cerebral amyloid angiopathy). We sought to determine whether location of hematoma in the cerebellum (deep and superficial regions) was suggestive of a particular hemorrhage-prone small-vessel disease pathology (cerebral amyloid angiopathy or hypertensive vasculopathy)...
November 28, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/29179528/ischemic-stroke-in-patients-with-poems-syndrome-a-case-report-and-comprehensive-analysis-of-literature
#13
Fang-Wang Fu, Jie Rao, Yuan-Yuan Zheng, Hui-Lin Wang, Jian-Guang Yang, Guo-Qing Zheng
Background: POEMS syndrome is a rare multi-systemic disease characterized by polyneuropathy, organomegaly, endocrinopathy, monoclonal gammopathy, and skin changes. Arterial or venous thrombosis is a less-common complication of POEMS syndrome. Ischemic stroke has also been reported sporadically. However, the association between POEMS syndrome and ischemic stroke has not been entirely understood. Methods: A case of ischemic stroke caused by cerebral vasculitis in a patient with POEMS syndrome was presented...
October 24, 2017: Oncotarget
https://www.readbyqxmd.com/read/29159001/a-unique-case-of-acute-cerebral-venous-sinus-thrombosis-secondary-to-primary-varicella-zoster-virus-infection
#14
Syed F Imam, Omair Ul Haq Lodhi, Zainab Fatima, Saneeya Nasim, Waseem T Malik, Muhammad Sabih Saleem
Primary varicella zoster virus (VZV) infection, predominantly in the pediatric population, presents with pyrexia and a classic pruritic vesicular rash. In adults, although less common, it is more severe and linked to more complications. Neurological complications, which account for less than 1% of all VZV complications, include meningitis, encephalitis, arterial vasculopathy, and venous thrombosis. We present a case of a 39-year-old male who developed extensive cerebral venous sinus thrombosis following primary VZV infection...
September 16, 2017: Curēus
https://www.readbyqxmd.com/read/29158056/factors-associated-with-moyamoya-syndrome-in-a-kentucky-regional-population
#15
Catherine Y Wang, Stephen L Grupke, Jill Roberts, Jessica Lee, Justin F Fraser
OBJECTIVES: Our study aimed to report both new and previously identified conditions associated with moyamoya syndrome in a Western population and to present our outcomes after surgical treatment with indirect bypass. METHODS: We performed a retrospective chart review of patients evaluated at our institution from June 2011 to June 2015 who were diagnosed with moyamoya. Data collected include patient demographics, presenting manifestations, vessels involved, comorbid conditions, abnormal laboratory values, treatments administered, and clinical outcomes...
November 17, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/29143295/posterior-circulation-involvement-in-pediatric-and-adult-patients-with-moyamoya-disease-a-single-center-experience-in-574-patients
#16
Meng Zhao, Dong Zhang, Shuo Wang, Yan Zhang, Rong Wang, Xiaofeng Deng, Jizong Zhao
The importance of the posterior cerebral artery (PCA) involvement in moyamoya disease has been highlighted in recent years. However, few studies compared the impact of PCA lesions in moyamoya disease between pediatric and adult patients. We conducted this study to summarize the clinical features of moyamoya patients with PCA lesions and describe the difference between pediatric and adult patients. We reviewed the records of 696 consecutive moyamoya vasculopathy patients from 2009 to 2015. The Suzuki and the Miyamoto stages were used to evaluate the steno-occlusive lesions of the anterior and posterior arteries...
November 15, 2017: Acta Neurologica Belgica
https://www.readbyqxmd.com/read/29127268/sickle-mice-are-sensitive-to-hypoxia-ischemia-induced-stroke-but-respond-to-tissue-type-plasminogen-activator-treatment
#17
Yu-Yo Sun, Jolly Lee, Henry Huang, Mary B Wagner, Clinton H Joiner, David R Archer, Chia-Yi Kuan
BACKGROUND AND PURPOSE: The effects of lytic stroke therapy in patients with sickle cell anemia are unknown, although a recent study suggested that coexistent sickle cell anemia does not increase the risk of cerebral hemorrhage. This finding calls for systemic analysis of the effects of thrombolytic stroke therapy, first in humanized sickle mice, and then in patients. There is also a need for additional predictive markers of sickle cell anemia-associated vasculopathy. METHODS: We used Doppler ultrasound to examine the carotid artery of Townes sickle mice tested their responses to repetitive mild hypoxia-ischemia- and transient hypoxia-ischemia-induced stroke at 3 or 6 months of age, respectively...
November 10, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/29114091/circulating-endothelial-markers-in-retinal-vasculopathy-with-cerebral-leukoencephalopathy-and-systemic-manifestations
#18
Nadine Pelzer, Roel Bijkerk, Marlies E J Reinders, Anton Jan van Zonneveld, Michel D Ferrari, Arn M J M van den Maagdenberg, Jeroen Eikenboom, Gisela M Terwindt
BACKGROUND AND PURPOSE-: Retinal vasculopathy with cerebral leukoencephalopathy and systemic manifestations (RVCL-S) is a monogenic small vessel disease, caused by C-terminal truncating TREX1 mutations, that can be considered a model for stroke and vascular dementia. The pathophysiology of RVCL-S is largely unknown, but systemic endothelial involvement has been suggested, leading to pathology in the brain and other highly vascularized organs. Here, we investigated circulating endothelial markers to confirm endothelial involvement and identify biomarkers for disease activity...
November 7, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/29044414/polymer-coating-embolism-cause-of-cerebral-vasculopathy-and-death-following-congenital-heart-repair-in-two-infants
#19
Rashi I Mehta, Richard J Perrin, Raman Baldzizhar, Rupal I Mehta
No abstract text is available yet for this article.
November 1, 2017: Journal of Neuropathology and Experimental Neurology
https://www.readbyqxmd.com/read/29030476/added-value-of-vessel-wall-magnetic-resonance-imaging-for-differentiation-of-nonocclusive-intracranial-vasculopathies
#20
Mahmud Mossa-Basha, Dean K Shibata, Danial K Hallam, Adam de Havenon, Daniel S Hippe, Kyra J Becker, David L Tirschwell, Thomas Hatsukami, Niranjan Balu, Chun Yuan
BACKGROUND AND PURPOSE: Our goal is to determine the added value of intracranial vessel wall magnetic resonance imaging (IVWI) in differentiating nonocclusive vasculopathies compared with luminal imaging alone. METHODS: We retrospectively reviewed images from patients with both luminal and IVWI to identify cases with clinically defined intracranial vasculopathies: atherosclerosis (intracranial atherosclerotic disease), reversible cerebral vasoconstriction syndrome, and inflammatory vasculopathy...
November 2017: Stroke; a Journal of Cerebral Circulation
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