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bilateral carotide artery stenosis

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https://www.readbyqxmd.com/read/28431773/atypical-moyamoya-syndrome-with-brain-calcification-and-stenosis-of-abdominal-aorta-and-renal-arteries
#1
Hideki Uchikawa, Katsunori Fujii, Mayuko Fujita, Tomoko Okunushi, Naoki Shimojo
Moyamoya syndrome is a progressive cerebrovascular disease that is characterized by stenosis of the terminal portion of the internal carotid artery and its main branches, in combination with an accompanying disease. We herein describe an 8-year-old boy exhibiting transient loss of consciousness, who had recurrent seizures in infancy with progressive brain calcification. On admission, he was alert but magnetic resonance angiography showed bilateral stenosis of the whole internal carotid artery and proliferation of vascular collaterals, and brain CT revealed calcification on bilateral putamen...
April 18, 2017: Brain & Development
https://www.readbyqxmd.com/read/28431600/assessment-of-on-treatment-platelet-reactivity-and-relationship-with-cerebral-micro-embolic-signals-in-asymptomatic-and-symptomatic-carotid-stenosis
#2
Justin A Kinsella, W Oliver Tobin, Sean Tierney, Timothy M Feeley, Bridget Egan, Tara Coughlan, D Ronan Collins, Desmond O'Neill, Joseph A Harbison, Colin P Doherty, Prakash Madhavan, Dermot J Moore, Sean M O'Neill, Mary-Paula Colgan, Maher Saqqur, Raymond P Murphy, Niamh Moran, George Hamilton, Dominick J H McCabe
INTRODUCTION: The relationship between on-treatment platelet reactivity and cerebral micro-embolic signals (MES) is unknown, and has not been previously simultaneously assessed in asymptomatic and symptomatic carotid stenosis patients. METHODS: Consecutive eligible patients with ≥50% asymptomatic or recently symptomatic carotid stenosis (≤4weeks following TIA/ischaemic stroke) were recruited to this pilot study. Symptomatic patients were followed up to the 'late' phase (≥3months) following symptom onset or carotid intervention; longitudinal data were analysed from symptomatic patients with data available at both time-points...
May 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28417663/is-neck-dissection-associated-with-an-increased-risk-of-postoperative-stroke
#3
John D Cramer, Urjeet A Patel, Matthew B Maas, Sandeep Samant, Stephanie Shintani Smith
Objective Prior studies have reported widely disparate rates of postoperative stroke, with conflicting analyses of whether neck dissection is an independent risk factor. Study Design Cohort study. Setting American College of Surgeons National Surgical Quality Improvement Program from 2005 to 2013. Subjects and Methods We compared the 30-day rate of postoperative stroke between patients undergoing complete or modified radical neck dissection and a control cohort composed of those undergoing resections in the oral cavity, oropharynx, larynx, or hypopharynx without neck dissection...
April 1, 2017: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/28399892/effects-of-environmental-enrichment-on-white-matter-glial-responses-in-a-mouse-model-of-chronic-cerebral-hypoperfusion
#4
Yoshiki Hase, Lucinda Craggs, Mai Hase, William Stevenson, Janet Slade, Dianne Lopez, Rubin Mehta, Aiqing Chen, Di Liang, Arthur Oakley, Masafumi Ihara, Karen Horsburgh, Raj N Kalaria
BACKGROUND: This study was designed to explore the beneficial effects of environmental enrichment (EE) on white matter glial changes in a mouse model of chronic cerebral hypoperfusion induced by bilateral common carotid artery stenosis (BCAS). METHODS: A total of 74 wild-type male C57BL/6J mice underwent BCAS or sham surgery. One week after surgery, the mice were randomly assigned into three different groups having varied amounts of EE-standard housing with no EE conditions (std), limited exposure with 3 h EE a day (3 h) and full-time exposure to EE (full) for 12 weeks...
April 11, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28393772/carotid-artery-disease-and-periprocedural-stroke-risk-after-transcatheter-aortic-valve-implantation
#5
Parthasarathy D Thirumala, Sruthi Muluk, Reshmi Udesh, Amol Mehta, John Schindler, Suresh Mulukutla, Vinodh Jeevanantham, Lawrence Wechsler, Thomas Gleason
OBJECTIVE/BACKGROUND: To examine the role of carotid stenosis (CS) and other independent risk factors of perioperative stroke, following transcatheter aortic valve implantation (TAVI). MATERIALS AND METHODS: Using data from the National Inpatient Sample database for analysis, patients who underwent TAVI were identified using the International Classification of Diseases, Ninth Revision, Clinical Modification codes. Various preoperative and perioperative risk factors and their association with perioperative strokes were studied...
April 2017: Annals of Cardiac Anaesthesia
https://www.readbyqxmd.com/read/28382613/reduced-internal-carotid-artery-flow-in-color-coded-carotid-duplex-sonography
#6
Fu-Yi Yang, Po-Ren Hsu, Shinn-Kuang Lin
PURPOSE: Reduced flow in the internal carotid artery (ICA) is related to cerebral ischemia. We established a classification of reduced ICA flow through color-coded carotid duplex (CCD) sonography. METHODS: We retrospectively reviewed 25,000 CCD images in sonography laboratory. RESULTS: Reduced ICA flow [flow volume (FV) less than 100 mL/min] was found in 1.2% of all studies, and 270 patients were enrolled. We included 8% patients with lesions proximal to the ICA in Group A, 27% with lesions at the proximal ICA in Group B, 49% with lesions distal to the visible ICA in Group C, and 16% with unknown causes in Group D...
December 15, 2016: Acta Neurologica Taiwanica
https://www.readbyqxmd.com/read/28350575/influence-of-carotid-atherosclerotic-plaques-on-pulse-wave-assessment-with-arterial-tonometry
#7
Andrea Grillo, Giulia Simon, Paolo Salvi, Matteo Rovina, Corrado Baldi, Ilaria Prearo, Stella Bernardi, Bruno Fabris, Andrea Faini, Gianfranco Parati, Moreno Bardelli, Renzo Carretta
OBJECTIVE: Aortic stiffness and central pressure measurements have become increasingly important for the overall estimation of cardiovascular risk. The aim of this study is to verify whether the presence of stenosis in the carotid arteries due to atherosclerotic plaques may induce a bias in the measurement of carotid-femoral pulse wave velocity (PWV) and in the analysis of central pulse waveform variables assessed by carotid tonometry. METHODS: Eighty-four patients (age: 67...
March 27, 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/28344618/patient-and-lesion-tailored-algorithm-of-endovascular-treatment-for-arterial-occlusive-disease-of-extracranial-arteries-supplying-the-brain-safety-of-the-treatment-at-30-day-follow-up
#8
Paweł Latacz, Marian Simka, Paweł Brzegowy, Piotr Janas, Marek Kazibudzki, Piotr Pieniążek, Andrzej Ochała, Tadeusz Popiela, Tomasz Mrowiecki
INTRODUCTION: Although surgical endarterectomy remains the treatment of choice for carotid artery stenosis, stenting plays an important role as an alternative treatment modality, especially in high-risk patients. The actual safety profile associated with stenting procedures is probably better than that reported by randomized controlled trials. AIM: To assess the safety of stent implantations in extracranial arteries supplying the brain, and also to identify risk factors associated with this procedure...
2017: Postępy W Kardiologii Interwencyjnej, Advances in Interventional Cardiology
https://www.readbyqxmd.com/read/28323191/the-feasibility-and-safety-of-separate-carotid-artery-stenting-using-the-restrict-protective-method-for-bilateral-carotid-stenosis
#9
Tomotaka Ohshima, Ishu Bishnori, Kojiro Ishikawa, Shunsaku Goto, Taiki Yamamoto, Yoko Kato
BACKGROUND: and Purpose: The treatment strategy for bilateral carotid stenosis (BCS) is not clear. We report our experience of treating 12 patients with BCS using separate carotid artery stenting (CAS) using the restrict protective method. The order of treatment site and the protective method are also discussed. MATERIALS AND METHODS: Between April 2012 and November 2016, 24 lesions in 12 patients (range, 44-83 years; mean, 71 years; 1 woman) underwent CAS at Kariya Toyota General Hospital...
March 16, 2017: World Neurosurgery
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/28290390/prevalence-and-risk-factors-of-asymptomatic-carotid-artery-stenosis-in-indian-population-an-8-year-follow-up-study
#11
Subhash Kaul, Suvarna Alladi, K Rukmini Mridula, V C S Srinivasarao Bandaru, Matapathi Umamashesh, Darapureddy Anjanikumar, Palli Lalitha, R Chandrasekhar
BACKGROUND: Asymptomatic carotid artery stenosis (ACAS) is a marker for cerebrovascular disease, coronary atherosclerosis, and death. AIM: To investigate the prevalence of ACAS in the Indian population, and to correlate ACAS with other vascular risk factors. MATERIALS AND METHODS: We prospectively recruited 1500 individuals who were older than 40 years and asymptomatic for cerebrovascular disease between June 2003 and December 2014. Evaluation of vascular risk factors was done for all the participants...
March 2017: Neurology India
https://www.readbyqxmd.com/read/28273725/the-effects-of-environmental-enrichment-on-white-matter-pathology-in-a-mouse-model-of-chronic-cerebral-hypoperfusion
#12
Yoshiki Hase, Lucinda Craggs, Mai Hase, William Stevenson, Janet Slade, Aiqing Chen, Di Liang, Abdel Ennaceur, Arthur Oakley, Masafumi Ihara, Karen Horsburgh, Raj N Kalaria
White matter (WM) disintegration is common in the older population and is associated with vascular cognitive impairment (VCI). This study explored the effects of environmental enrichment (EE) on pathological sequelae in a mouse model of chronic cerebral hypoperfusion induced by bilateral common carotid artery stenosis (BCAS). Male C57BL/6 J mice underwent BCAS or sham surgery. One-week after surgery, mice were exposed to three different degrees of EE; either standard housing conditions (std), limited 3 h exposure to EE per day (3 h) or full-time exposure to EE (full) for 12 weeks...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/28251333/recognizing-subtle-near-occlusion-in-carotid-stenosis-patients-a-computed-tomography-angiographic-study
#13
Suvi Maaria Koskinen, Heli Silvennoinen, Petra Ijäs, Krista Nuotio, Leena Valanne, Perttu J Lindsberg, Lauri Soinne
INTRODUCTION: Near-occlusion of the internal carotid artery (ICA) is a significant luminal diameter (LD) reduction beyond a tight atherosclerotic carotid stenosis (CS). Recognition of even subtle near-occlusions is essential to prevent underestimation of the stenosis degree. Our goal was to investigate the prevalence of near-occlusion among CS patients using a single standard criterion to facilitate its recognition, even when distal ICA LD reduction is not visually evident in computed tomography angiography (CTA)...
March 1, 2017: Neuroradiology
https://www.readbyqxmd.com/read/28223258/the-neurologic-protection-of-unilateral-versus-bilateral-antegrade-cerebral-perfusion-in-aortic-arch-surgery-with-deep-hypothermic-circulatory-arrest-a-study-of-77-cases
#14
Bowen Li, Xiaoping Hu, Zhiwei Wang
BACKGROUD: Unilateral and bilateral antegrade cerebral perfusions (ACP) are recognized methods of cerebral protection in aortic arch surgery. However, the adequacy of cerebral protection in aortic arch surgery with deep hypothermic circulatory arrest is controversial. In this study, we compared unilateral and bilateral ACP of cerebral protection in aortic arch surgery by assessing the patient's intraoperative and postoperative brain function. METHODS: A total of 77 patients undergoing aortic arch surgery were included in this study...
April 2017: International Journal of Surgery
https://www.readbyqxmd.com/read/28219575/how-to-clamp-and-bypass-if-there-is-single-artery-supply-to-the-head-and-that-contains-severe-stenosis
#15
Murat Ugurlucan, Yilmaz Onal, Didem Melis Oztas, Omer Ali Sayin, Kubilay Aydin, Ufuk Alpagut
Takayasu arteritis manifests with arterial occlusions and aneurysms. Revascularization is sometimes challenging, especially when carotid arteries are affected. In this report, we present a carotid artery revascularization technique in a patient who was admitted with orthostatic and postprandial transient ischemic attacks, resulting in a diagnosis of bilaterally occluded subclavian and vertebral arteries, occluded left common carotid artery, and severely stenosed right common carotid artery. Clamping of the right carotid artery was a challenge; however, our technique provides a neurologically safe revascularization...
March 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28191623/the-ivy-sign-on-fluid-attenuated-inversion-recovery-images-related-to-single-photon-emission-computed-tomography-cerebral-blood-flow-in-moyamoya-disease-a-case-report
#16
Fumihiro Matano, Yasuo Murai, Asami Kubota, Takayuki Mizunari, Shiro Kobayashi, Akio Morita
BACKGROUND: Moyamoya disease is an idiopathic progressive cerebrovascular steno-occlusive disorder characterized by the formation of numerous collaterals called moyamoya vessels. Accurate evaluation of vascular status and CBF is needed for prompt treatment to prevent ischemic and/or hemorrhagic events. The pathogenesis of the ivy sign on fluid attenuated inversion recovery (FLAIR) images of moyamoya disease patients is unclear. We report a moyamoya disease case wherein the ivy sign changed in relation to SPECT-measured CBF during progression and following treatment...
January 17, 2017: Turkish Neurosurgery
https://www.readbyqxmd.com/read/28178896/sequential-pet-estimation-of-cerebral-oxygen-metabolism-with-spontaneous-respiration-of-15-o-gas-in-mice-with-bilateral-common-carotid-artery-stenosis
#17
Takashi Temma, Makoto Yamazaki, Jun Miyanohara, Hisashi Shirakawa, Naoya Kondo, Kazuhiro Koshino, Shuji Kaneko, Hidehiro Iida
Positron emission tomography with (15)O-labeled gases ((15)O-PET) is important for in vivo measurement of cerebral oxygen metabolism both in clinical and basic settings. However, there are currently no reports concerning (15)O-PET in mice. Here, we developed an (15)O-PET method applicable to mice with spontaneous respiration of (15)O-gas without a tracheotomy catheter. Sequential (15)O-PET was also performed in a mouse model of chronic cerebral hypoperfusion with bilateral common carotid artery stenosis (BCAS) induced by placement of microcoils...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/28165646/simultaneous-noncontrast-angiography-and-intraplaque-hemorrhage-snap-imaging-comparison-with-contrast-enhanced-mr-angiography-for-measuring-carotid-stenosis
#18
Hongge Shu, Jie Sun, Thomas S Hatsukami, Niranjan Balu, Daniel S Hippe, Haining Liu, Ted R Kohler, Wenzhen Zhu, Chun Yuan
PURPOSE: To evaluate in a proof-of-concept study the feasibility of Simultaneous Noncontrast Angiography and intraPlaque hemorrhage (SNAP) imaging as a clinical magnetic resonance angiography (MRA) technique for measuring carotid stenosis. There is a growing interest in detecting intraplaque hemorrhage (IPH) during the clinical management of carotid disease, yet luminal stenosis has remained indispensable during clinical decision-making. SNAP imaging has been proposed as a novel IPH imaging technique that provides carotid MRA with no added scan time...
February 6, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/28121957/prevalence-and-risk-factors-for-atherosclerotic-carotid-stenosis-and-plaque-a-population-based-screening-study
#19
Shin Young Woo, Jin Hyun Joh, Sang-Ah Han, Ho-Chul Park
Atherosclerotic carotid stenosis (ACS) is a major cause of ischemic stroke. Screening for asymptomatic ACS is important to identify the patients who require longitudinal surveillance, medication, or endovascular surgery. The aim of this study was to assess the prevalence and risk factors for ACS and carotid plaque (CP) in Korea using a population-based screening study.We recruited participants during visits to several community welfare centers in Korea. The baseline characteristics of the study population were collected...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28057413/upper-extremity-blood-pressure-difference-in-patients-undergoing-carotid-revascularisation
#20
A Huibers, J Hendrikse, M M Brown, S A Pegge, M Arnold, F L Moll, L J Kapelle, G J de Borst
INTRODUCTION: Blood pressure (BP) regulation is important in patients with carotid artery atherosclerotic disease. Concomitant subclavian artery stenosis (SAS) might lead to an underestimation of the true systemic BP in the monitoring of these patients. This study aimed to assess the prevalence of the inter-arm BP difference in patients undergoing carotid intervention and its association with ipsilateral significant subclavian stenosis and clinical outcome. METHODS: Bilateral BP measurements and vascular imaging (CTA and MRA) of both subclavian arteries and the innominate artery were assessed in 182 symptomatic patients with carotid artery stenosis undergoing revascularisation in the International Carotid Stenting Study (ICSS)...
February 2017: European Journal of Vascular and Endovascular Surgery
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