Search Results
Results 351 - 400 of 1834
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Jin Gong-Yong - - 2009
This study was to evaluate the benefit of the screening of coronary artery stenosis (CAS) using dual-source CT (DSCT) in patients with cerebral infarction caused by a Large Artery Atherosclerosis (LAA). From November 2007 to February 2008, 34 patients (25 males and 9 females; mean age, 62.4 +/- 9.5 years) ...
Nasr Nathalie - - 2009
BACKGROUND AND PURPOSE: Inflammation plays an important role in the initiation and progression of atherosclerosis but the contribution of neutrophils to this process is unclear. Asymptomatic cerebral microembolization can be detected by transcranial Doppler (TCD) and has been associated with increased risk of early stroke recurrence in patients with recently ...
Bermel Christina - - 2009
A 33-year-old Caucasian man with a 17-year history of HIV infection developed sudden right-sided hemiplegia, with the arm more affected than the leg, and aphasia. Magnetic resonance imaging of the brain showed hemodynamic watershed stroke between the anterior and middle cerebral artery territories and an ischemic stroke within the left ...
Pu Yuehua - - 2009
OBJECTIVES: We carried out this cross-sectional study to explore the association between cerebral large artery lesions and leukoaraiosis in Chinese patients with stroke. The relationship between leukoaraiosis and risk factors of cerebral vascular disease was also investigated. METHODS: Data were prospectively collected from patients with ischemic stroke within 7 days ...
Yu Edward Haosheng - - 2009
BACKGROUND: Stroke is a leading cause of long-term disability in the United States. Inpatient hospital costs account for the majority of acute care costs of stroke with half the cost providing for room and board and 19% of total costs allocated to diagnostic testing. This study addresses the yield of ...
Pawlak Mikolaj A - - 2009
PURPOSE: To establish reference values of the ratios of flow velocity in the middle cerebral artery (V(MCA)) and the terminal portion of the internal carotid artery (V(tICA)) to flow velocity in the extracranial portion of internal carotid artery (V(ICA)) in children with sickle cell disease (SCD). MATERIALS AND METHODS: Institutional ...
Versaci Francesco - - 2009
In an attempt to reduce post-operative events we investigated a new therapeutic strategy consisting of a simultaneous hybrid revascularization by carotid artery stenting (CAS), immediately followed by an on-pump coronary artery bypass graft (CABG). Preventing stroke and cardiovascular events after coronary artery revascularization in patients with elevated surgical risk is ...
Sun Yu-Heng - - 2009
OBJECTIVE: To identify the prognosis factors of the patients with high-degree carotid artery stenosis and evaluate the effects of carotid artery stenting and antiplatelet therapy prospectively. METHODS: Patients with severe carotid artery stenosis were enrolled in this study consecutively. Intervention was carotid artery stenting combined with antiplatelet therapy or antiplatelet ...
Famakin Bolanle M - - 2009
There are limited data on the causes and severity of subsequent stroke in patients presenting initially with TIA or stroke attributed to intracranial arterial stenosis. We evaluated the location, type (lacunar vs nonlacunar), cause, and severity of stroke in patients who had an ischemic stroke endpoint in the Warfarin Aspirin ...
Telman G - - 2009
BACKGROUND AND PURPOSE: This study aimed to investigate the embolic potential of carotid plaques, employing both the presence and the rate of micro-embolic signals (MESs), based on the presence and timing (current or past) of symptoms, degree of stenosis and ultrasonic characteristics of plaques. METHODS: We used the transcranial Doppler ...
Aboyans Victor - - 2009
We reviewed the literature about the usefulness of screening for carotid artery lesions in patients with coronary artery disease (CAD). The use of duplex ultrasonography to detect carotid lesions has a two-fold interest in this situation. First, it enables the detection of severe carotid artery stenosis (CS), a potentially reversible ...
Brunser Alejandro M - - 2009
BACKGROUND AND PURPOSE: Patients with acute ischemic stroke and intracranial arterial obstructions have a poor prognosis and a high probability of deteriorating at 24 hours. We aimed to evaluate the diagnostic accuracy of power motion mode Doppler (PMD-TCD) compared with CT angiography as standard in diagnosing intracranial arterial obstructions in ...
Liapis C D - - 2009
The European Society for Vascular Surgery brought together a group of experts in the field of carotid artery disease to produce updated guidelines for the invasive treatment of carotid disease. The recommendations were rated according to the level of evidence. Carotid endarterectomy (CEA) is recommended in symptomatic patients with >50% ...
Setacci C - - 2009
This multidisciplinary guideline provides an overview of the current evidence on the benefits obtained by endoarterectomy and stenting for the surgical treatment of patients with symptomatic and asymptomatic carotid stenosis. A hundred forty-six authors, 37 Italian scientific societies and two Italian patients' associations participated in drafting the Stroke Prevention and ...
Charalambous Nikolas - - 2009
PURPOSE: To evaluate the efficiency of 2 distal filtration devices designed for cerebral protection during carotid angioplasty in an in-vitro bench-top model. METHODS: After positioning the respective protection devices (RX Accunet and DynaCap) 5 cm distal to the bifurcation, embolization from carotid angioplasty was simulated by injecting polyvinyl alcohol particles ...
Maeda Yoshihiko - - 2009
The authors report on the case of a girl with cerebrovascular moyamoya disease born with severe respiratory failure caused by a congenital diaphragmatic hernia. Cardiopulmonary management included extracorporeal membrane oxygenation until the diaphragm defect was repaired. The right common carotid artery (CA) was interrupted and cannulated for extracorporeal membrane oxygenation. ...
Burke Gordon M - - 2009
Moyamoya, meaning a "hazy puff of smoke" in Japanese, is a chronic, occlusive cerebrovascular disease involving bilateral stenosis or occlusion of the terminal portion of the internal carotid arteries (ICAs) and/or the proximal portions of the anterior cerebral arteries and middle cerebral arteries (MCAs). The Ministry of Health and Welfare ...
Tsai L-K - - 2009
OBJECTIVES: Early diagnosis and management of intracranial dural arteriovenous fistulae (DAVF) may prevent the occurrence of stroke. This study aimed to identify the best carotid duplex sonography (CDS) parameters for screening DAVF. METHODS: 63 DAVF patients and 170 non-DAVF patients received both CDS and conventional angiography. The use of seven ...
Marquardt L - - 2009
The higher risk of early recurrent stroke after posterior circulation transient ischaemic attack or minor stroke versus after carotid territory events could be due to a greater prevalence of large artery stenosis, but there have been few imaging studies, and the prognostic significance of such stenoses is uncertain. Reliable data ...
Hadlock Jean - - 2009
Ultrasonic Doppler examination with spectral waveform has been used for the classification and surveillance of carotid artery stenosis for over 25 years. Progression/regression between examinations can be identified with 95% confidence if the velocity measurements change by more than two times the root mean square difference (RMSD) of the repeat ...
Kim Yang-Ki - - 2009
BACKGROUND: Cervical artery dissection is often treated with anticoagulants to prevent ischemic stroke. The risk-benefit ratio of anticoagulation versus antiplatelet therapy is unclear. OBJECTIVES: To provide an educational review of current data on the disease to explain the rationale for the treatment options and to explore the results of management ...
Amlie-Lefond Catherine - - 2009
Cerebral arteriopathies, including an idiopathic focal cerebral arteriopathy of childhood (FCA), are common in children with arterial ischemic stroke and strongly predictive of recurrence. To better understand these lesions, we measured predictors of arteriopathy within a large international series of children with arterial ischemic stroke. Between January 2003 and July ...
Nicoletto Heather A - - 2009
Because of its portability, low cost, and quick, noninvasive nature, transcranial Doppler (TCD) has become a widely utilized exam to evaluate the basal cerebral arteries for various disease processes. The test is considered a "blind" and very difficult study by most vascular labs. Neurologists commonly order TCD, so the performance ...
Sharma Giriraj K - - 2009
OBJECTIVE: A patient with cervical internal carotid artery (ICA) dissection presented with visual loss and a mydriatic pupil that resolved after angioplasty and stenting. CLINICAL PRESENTATION: A 49-year-old woman presented with a unilateral dilated tonic pupil and transient monocular visual loss and subsequently developed speech disturbance. Angiography revealed a left ...
Wittkugel Oliver - - 2009
Stroke is the third most common cause of death in the USA. Up to 20% of all strokes are caused by internal carotid artery (ICA) stenosis. This article reviews the treatment of ICA stenosis, its indication, and its relevance for stroke prevention. The article also discusses the indication of ICA ...
Ochi Namiko - - 2009
Silent cerebral microbleeds (MBs) are a common finding in stroke patients, especially those with intracerebral hemorrhage, and are thought to be a marker of future cerebral hemorrhage. Clinically, two distinct forms of MBs have been documented, those observed with either or both stroke or small vessel disease (SVD) and those ...
Saba Luca - - 2010
PURPOSE: Stroke is a major cause of death and serious long-lasting neurological disability and the severity of carotid artery stenosis is one of the most important determinants of cerebrovascular events. The purpose of this paper is to evaluate the correlation between multi-detector-row CT angiography (MDCTA) and ultra-sound peak-systolic-velocity (US-PSV) in ...
Brown Hilary A - - 2009
BACKGROUND AND PURPOSE: The purpose of this study was to determine the prevalence of carotid stenosis among patients presenting to the University Hospital of West Indies (UHWI) Accident and Emergency Department (A&E) with an ischemic stroke or transient ischemic attack (TIA). METHODS: Beginning in August 2006, all patients presenting to ...
Chen Jieli - - 2009
We tested the hypothesis that Niaspan (a prolonged release formulation of niacin) increases tumor necrosis factor-alpha-converting enzyme (TACE) expression and Notch signaling activity and promotes arteriogenesis after stroke. Rats were subjected to middle cerebral artery occlusion and were treated with or without Niaspan. Niaspan significantly elevated local cerebral blood flow, ...
Bowman Jonathan N - - 2009
OBJECTIVE: We reviewed our institution's experience with carotid artery pseudo-occlusion (CAPO), to investigate whether internal carotid artery (ICA) end-diastolic velocity (EDV) as measured by duplex ultrasonography, was a predictor of need for further intervention. METHODS: From February 2003 to January 2008, 7478 patients underwent duplex ultrasonographic evaluation of their carotid ...
Bowden David - - 2009
Platelet function exhibits circadian variation with highest levels of activity in the morning and plays a central role in arterial thrombotic events, including thrombotic stroke following carotid endarterectomy (CEA). Prior to the platelet-rich thrombus occluding the carotid artery, multiple embolic signals are detected in the middle cerebral artery using transcranial ...
Howard Virginia J - - 2009
Several carotid endarterectomy randomized, controlled trials and series have reported higher perioperative stroke and death rates for women compared with men. The potential for this same relationship with carotid artery stenting was examined in the lead-in phase of the Carotid Revascularization Endarterectomy versus Stenting Trial (CREST). CREST compares efficacy of ...
Lanfranconi S - - 2009
Safety and efficacy of carotid artery stenting have still to be fully established. We propose a standardized registry of carotid artery stenting in use at our hospital to evaluate whether the presence of an independent neurologist performing basal, procedural and post-procedural observation increases the accuracy of outcome assessment. We collected ...
Ranaweera Priyantha S - - 2009
BACKGROUND: Optimal management of patients with asymptomatic critical carotid artery stenoses prior to coronary artery bypass grafting (CABG) has no clear consensus. Further, optimal timing for surgical coronary revascularization has not been defined after or with any carotid revascularization. METHODS: We reviewed the data from 2002 to 2007, of all ...
Tan Marilyn - - 2009
Thrombolysis is considered to be contraindicated in acute ischemic stroke secondary to infective endocarditis (IE). We report a 12-year-old female who presented with acute dense right hemiparesis and aphasia. Cranial magnetic resonance imaging and angiography showed multiple diffusion-restricted lesions in the left hemisphere and absence of flow in the left ...
Ozdil Mine - - 2009
Childhood ischemic stroke is uncommon and may be associated with many causes and require extensive evaluation. Fibromuscular dysplasia is a rare cause of unknown etiology of childhood stroke which is mostly related with renovascular hypertension and in adults about 85% of cases renal artery has been involved, whereas the intracerebral ...
Watanabe Masaki - - 2009
We report the case of a patient with distal migration of a floating carotid thrombus caused by oral contraceptives. A 48-year-old woman using oral contraceptives suffered from dysarthria and gait disturbance. Examinations, including ultrasound and cerebral arteriogram, revealed a floating thrombus at the left carotid bifurcation with no stenosis. Despite ...
Kwater Aleksander - - 2009
BACKGROUND AND PURPOSE: The relationship between systemic arterial stiffness and parameters of cerebral circulation is poorly understood. We aimed to assess the relation between pulsatility (PI) and resistance (RI) indexes of the middle cerebral artery (MCA) and aortic pulse wave velocity (PWV) and brachial pulse pressure (PP). METHODS: Bilateral transcranial ...
Nowacki Przemysław - - 2009
BACKGROUND AND PURPOSE: Improved haemodynamics in the middle cerebral arteries (MCAs) after carotid artery endaterectomy (CEA) has been demonstrated in a number of studies, whereas similar analyses on carotid angioplasty and stenting (CAS) remain insignificant. The purpose of the study was to test whether CAS affects haemodynamic parameters of MCA ...
Ahmed Manzoor - - 2009
We present 3 cases of unilateral internal carotid artery (ICA) occlusions with prominent single collateralizing vessel of vasa vasorum on computed tomographic angiography. The features on axial source and 3-dimensional images of computed tomographic angiography include "pseudostring sign," serpigenous course of the vasa vasorum, eccentric dot appearance in the wall ...
Martínez-Sánchez Patricia - - 2009
Ultrasound (US) techniques increase the ability of neurologists specializing in stroke to rapidly evaluate stroke patients, determine likely mechanisms of brain ischemia, determine arterial patency, quantify stenosis severity, and determine the most appropriate clinical management. Furthermore, the development of new US techniques based on the detection of US contrast agents ...
Amarenco Pierre - - 2009
Underlying pathologies of stroke of unknown cause include atherosclerosis in brain arteries, either intracranial (e.g. moderate middle cerebral artery stenosis), extracranial (e.g. vertebral artery origin stenosis) or proximal (e.g. thick plaques in the aortic arch), thought to be unrelated to the stroke; cardiac findings of undetermined causal link (e.g. patent ...
Yoneda Yukihiro - - 2009
Therapeutic guidelines of intravenous thrombolysis with tissue plasminogen activator (tPA) for hyperacute ischemic stroke are very strict. Because of potential higher risk of bleeding complications, the presence of unruptured cerebral aneurysm is a contraindication for systemic thrombolysis with tPA. According to the standard CT criteria, a 66-year-old woman who suddenly ...
López-Serna Raúl - - 2009
Bilateral thalamic infarcts are rare presentations of stroke. They are the result of a complex combination of risk factors and a predisposing vessel distribution. The artery of Percheron, characterized by a single arterial trunk that irrigates both paramedian thalamic regions, can be occluded as a result of embolic diseases leading ...
Chuang Yu-Ming - - 2009
BACKGROUND AND PURPOSE: The purpose of the present study was to assess whether the direction of flow via the circle of Willis (CoW) changed after stenting for severe internal carotid artery (ICA) stenosis. METHODS: 65 patients (38 men, mean age 63.2 +/- 8.4 years, range 44-82) with a symptomatic ICA ...
Sanna Mario - - 2009
The infratemporal fossa approach described by Fisch overcame most of the factors that had previously prevented the total removal of tympanojugular paragangliomas (TJP). The remaining problem has been infiltration of the internal carotid artery (ICA) for which there has been no entirely satisfactory solution. At the least, severe encasement risks ...
Tsivgoulis Georgios - - 2009
BACKGROUND AND PURPOSE: Knock-type Doppler signals (KTDS) are detectable by transcranial Doppler, and it has been hypothesized that they are related to an occlusion of a small perforating artery and microvascular ischemia. However, the nature of KTDS has not been prospectively defined. We aimed at describing the spectral and power ...
Iizuka Takahiro - - 2009
Mitochondrial myopathy, encephalopathy, lactic acidosis and stroke-like episodes (MELAS) is a distinct clinical syndrome caused by mutations in the mitochondrial DNA. The pathogenesis of stroke-like episodes remains unknown but major vessels stenosis is not a cause of stroke-like episodes. We describe a novel heteroplasmic G617A transition in the mitochondrial transfer ...
Attigah N - - 2009
BACKGROUND: To evaluate long-term results of surgical therapy of extracranial carotid artery aneurysms (ECCA) and to provide a morphologic classification for individual surgical reconstruction techniques. PATIENT AND METHODS: This retrospective analysis includes 57 patients (43 male, mean age 61.9 years.) with 64 carotid reconstructions for ECCA between 1980 and 2004. ...
De Silva D A - - 2008
We studied the relationship of arterial stiffness, measured by carotid-femoral pulse wave velocity and inflammation, measured by serum erythrocyte sedimentation rate among 334 ischaemic stroke patients. There was a significant correlation between carotid-femoral pulse wave velocity and erythrocyte sedimentation rate (P = 0.001), a relationship independent of age, hypertension, diabetes ...
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