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Results 251 - 300 of 1858
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Thorne Meghan L - - 2010
The objective of this investigation was to implement a high-pass frequency filter method to analyze Doppler ultrasound velocity waveforms and quantify turbulence intensity (TI) in vivo. Doppler velocity data were analyzed using two techniques, based on either ensemble averaging or high-pass frequency domain filtering of the periodic waveforms. The accuracy ...
Kawabori Masahito - - 2010
BACKGROUND/OBJECTIVES: Ischemic stroke is one of major complications of cardiac surgery. Although a current American Heart Association (AHA) guideline states that carotid endarterectomy is probably recommended before or concomitant to coronary artery bypass grafting (CABG) for the carotid stenosis, there is no report that analyzed optimal strategies in cardiac surgery ...
Furtado A D - - 2010
Ischemic stroke is commonly embolic, either from carotid atherosclerosis or from cardiac origin. These potential sources of emboli need to be investigated to accurately prescribe secondary stroke prevention. Moreover, the mortality in ischemic stroke patients due to ischemic heart disease is greater than that of age-matched controls, thus making evaluation ...
Pico Fernando - - 2010
OBJECTIVE: Intracranial arterial dolichoectasia (IADE), also called dilatative arteriopathy of the brain, is defined as an increase in length and diameter of intracranial arteries. Abdominal aortic aneurysm and ectasia of coronary arteries have been reported in association with IADE. In both conditions, a dysfunction of matrix metalloproteinases (MMP)-2, -3, and ...
Bugnicourt Jean-Marc - - 2010
We previously demonstrated a strong relation between carotid atherosclerosis (defined as carotid artery stenosis > or =50%) and intracranial artery calcification (IAC) in ischemic stroke patients. The purpose of this study was to evaluate the relation between aortic atherosclerosis and IAC. Four hundred fifty-four patients with ischemic stroke were included. ...
White Rodney A - - 2010
The Vascular Registry (VR) on carotid procedures collects long-term outcomes on carotid artery stenting (CAS) and carotid endarterectomy (CEA) patients. The purpose of this report is to describe in-hospital and 30-day CAS outcomes in patients with atherosclerotic carotid artery disease (CAD; atherosclerosis [ATH]) compared to recurrent carotid stenosis (RES) and ...
Woo Karen - - 2010
The validity of carotid endarterectomy (CEA) for asymptomatic carotid stenosis has been questioned recently due to the increasing effectiveness of medical management. In this study, we evaluated how contemporary outcomes of CEA for asymptomatic carotid stenosis compare with published stroke rates for best medical management. We identified all patients who ...
Eskandari Mark K - - 2010
Vascular surgeons have increasingly become proficient in carotid artery stenting (CAS) as an alternative treatment modality for cervical carotid artery occlusive disease. We analyzed our early and late outcomes of CAS over the last 8 years. We report a single-center retrospective review of 388 carotid bifurcation lesions treated with CAS ...
Pare?s Isabel - - 2010
Several reports describe a potential association between prolonged flights and stroke. However, causes of travel-related stroke due to paradoxal embolism other than patent foramen ovale have not been previously reported. We here describe the case of a 44-year-old woman who presented with an acute anterior circulation stroke after a transoceanic ...
Laugesaar R - - 2010
AIM: To determine whether factor V Leiden (FVL) and prothrombin (PT) 20210G>A mutation are associated with paediatric ischaemic stroke. METHODS: The study consisted of two parts. Case-control study included neuroradiologically confirmed paediatric ischaemic stroke patients from two tertiary children's hospitals in Estonia. For control group, DNA was obtained from 400 ...
Zhang Gui-yun - - 2010
BACKGROUND: Atherosclerosis is the most common cause of ischemic stroke. Until now, there has been no ideal animal model for studying the hemodynamic ischemia caused by atherosclerosis in posterior circulation. OBJECTIVE: This study was conducted to establish a cerebral ischemic model in an atherosclerotic rabbit by subclavian artery (SA) ligation ...
Crooke Gregory A - - 2010
BACKGROUND: A recent report suggested that a thoracotomy approach for reoperative mitral valve (MV) procedures was associated with an equivalent mortality and an unacceptable risk of stroke. We assessed these outcomes in a single institution's experience. METHODS: From 1992 through 2007, 905 patients underwent reoperative MV procedures. The approach was ...
Meyer Scott A - - 2010
OBJECTIVE: Carotid artery angioplasty and carotid artery stenting (CAS) offer a viable alternative to carotid endarterectomy for symptomatic and asymptomatic patients; however, the complication rates associated with CAS may be higher than previously documented. We evaluated the safety and efficacy of CAS in high surgical risk patients in a single ...
Terada Tomoaki - - 2010
OBJECT: The efficacy and pitfalls of endovascular recanalization were evaluated in cases of internal carotid artery (ICA) occlusion in the subacute to chronic stage. METHODS: Fourteen cases (15 lesions) of symptomatic ICA occlusion with hemodynamic compromise or recurrent symptoms were treated at the subacute to chronic stage using an endovascular ...
Seol Ho Jun - - 2010
OBJECT: Bilateral intimal thickening of the distal internal carotid arteries (ICAs) and the development of many collateral vessels in the base of the brain characterize moyamoya disease (MMD). Although the etiology of and the reason why MMD is limited to the major intracranial vessels remain unclear, flow dynamics, such as ...
Krishnaswamy Amar - - 2010
Stroke is often the result of carotid atheroma, which may cause ischemia via progressive arterial narrowing or lead to superimposed thrombus formation and subsequent atheroembolism to the intracerebral vasculature. Revascularization through carotid endarterectomy or carotid artery stenting with embolic protection devices has produced favorable results in appropriately selected patients. In ...
Bhatia Sanjay - - 2010
The authors report the case of an acute left middle cerebral artery distribution stroke caused by a terminal internal carotid artery occlusion in a patient who underwent endovascular mechanical embolectomy. Histopathological analysis of embolic material obtained from the mechanical retriever device was diagnostic of a high-grade phyllodes breast tumor. This ...
Tallarita Tiziano - - 2010
With advances in acute stroke management, patients with symptomatic severe carotid stenosis are frequently evaluated in the acute stage (ie, within the first few hours) after onset of symptoms. Patients with severe extracranial carotid artery stenosis presenting with acute stroke often have associated intracranial occlusive lesions. When invasive intra-arterial therapy ...
Ghatge S B - - 2010
Rupture of the internal carotid artery (ICA) during transsphenoidal surgery is a rare but potentially lethal complication. Direct surgical repair of the ICA may be difficult and time-consuming in an acute setting. Urgent endovascular treatments with vascular plug or stent-graft have been the feasible options to date. We desrcibe two ...
Yamada Kei - - 2010
Contrary to the common belief that age-related WMLs (also known as leukoaraiosis) are a progressive condition, a case of partial reversal of WMLs shortly after carotid artery stenting is described. A 75-year-old man presented with frequent TIAs, which were attributed to right ICA stenosis. He subsequently underwent successful carotid artery ...
Tuttolomondo Antonino - - 2010
No study has evaluated both arterial stiffness indexes (PWV and Aix) in patients with an acute cerebrovascular event. The aim of our study was to evaluate arterial stiffness indexes in subjects with acute ischemic stroke and to evaluate the relationship between these indexes and other clinical and laboratory variables. We ...
Malikov Serguei - - 2010
Aneurysms of the internal carotid artery (ICA) at the base of the skull are uncommon dangerous lesions whose management remains unclear. The aim of this retrospective study is to report a standardized surgical technique of ICA reconstruction with long-term results. Between 1988 and 2005, 13 patients (11 men; age 18 ...
Bakoyiannis C - - 2010
AIM: The aim of this study was to report our initial experience using the radial artery as access for carotid artery stenting (CAS) and review the existing literature. METHODS: From January to June 2008, nine high-risk consecutive patients were treated with carotid stents by using the radial artery as an ...
Laugesaar Rael - - 2010
We investigated the incidence and 30-day case-fatality of childhood stroke in Estonia, and clinical signs and risk factors of childhood stroke. A retrospective (1995-2003) and prospective study (2004-2006) of childhood stroke (arterial ischemic, hemorrhagic, and sinovenous thrombosis) and transient ischemic attack was conducted. Stroke-incidence calculation was based on the prospective ...
King James A J - - 2010
OBJECT: The authors used postoperative superselective angiography to assess the relative contributions of the middle meningeal artery (MMA) and the superficial temporal artery (STA) to revascularization following surgery for moyamoya syndrome in children. METHODS: Using the neurosurgical database at the Hospital for Sick Children, the authors reviewed the clinical and ...
Patel Tejas - - 2010
BACKGROUND: Carotid artery stenting (CAS) has become an accepted modality of treatment for revascularization of the internal carotid artery (ICA). CAS from femoral approach has got wide acceptance, however, it can be problematic due to access site complication as well as technical difficulties related to peripheral vascular disease and/or anatomical ...
Oran Nazan Tuna - - 2010
Stenosis of the internal carotid artery due to atherosclerosis can cause embolic stroke or cerebral ischemia, both of which may result in significant morbidity, mortality, and long-term disability. Although the endovascular technique with balloons and stents to relieve arterial (i.e., coronary) stenosis has allowed a nonsurgical approach to the management ...
Alexandrov A V - - 2010
In a quest for stroke treatment, reperfusion proved to be the first key to the puzzle. Systemic tissue plasminogen activator (tPA), the first and currently the only approved treatment, is also the fastest way to initiate thrombolyis for acute ischemic stroke. tPA works by induction of mostly partial recanalization since ...
Chough Chung Kee - - 2010
Bow hunter's stroke is a rare symptomatic vertebrobasilar insufficiency in which vertebral artery (VA) is mechanically occluded during head rotation. Various pathologic conditions have been reported as causes of bow hunter's stroke. However, bow hunter's stroke caused by facet hypertrophy of C1-2 has not been reported. A 71-year-old woman presented ...
Grunwald Iris Quasar IQ Acute Vascular Imaging Centre, Biomedical Research Centre, Oxford OX3 9DU, United Kingdom. - - 2010
To evaluate the recanalization rate and clinical outcome in children with acute ischemic stroke following treatment with innovative mechanical thrombectomy devices. Three subjects aged 7-16 years presenting with acute cerebral vascular occlusions (thrombolysis in myocardial infarction [TIMI] 0) were treated with either the Penumbra System, operating on an aspiration platform, ...
Randall Marc S - - 2010
BACKGROUND: Limited data are available about the long-term outcomes of the use of carotid artery stents in symptomatic patients and the impact of patient variables on the durability of endovascular carotid procedures. Outcome data previously reported from registry series mix symptomatic and asymptomatic patients. We present analysis of long-term follow-up, ...
Landgraff Nancy C - - 2010
The purpose of this study was to determine if patients with asymptomatic carotid artery stenosis and occlusion demonstrate deficits in cognitive and physical performance. The relationship between cognitive measures and performance of instrumental activities of daily living was examined. Seventy-nine patients with asymptomatic carotid artery stenosis of moderate and severe ...
Macdonald Sumaira - - 2010
Our aim was to determine whether filter protection reduces embolisation to the brain during carotid artery stenting (CAS). Thirty patients with symptomatic carotid artery stenosis > or =70% (North American Symptomatic Carotid Endarterectomy Trial) were randomly assigned to filter-protected or unprotected CAS. Diffusion-weighted magnetic resonance imaging (DWI) of the brain ...
De Silva Deidre A - - 2010
BACKGROUND AND PURPOSE: In ischemic stroke, the site of arterial obstruction has been shown to influence recanalization and clinical outcomes. However, this has not been studied in randomized controlled trials, nor has the impact of arterial obstruction site on reperfusion and infarct growth been assessed. We studied the influence of ...
Hiyama Takami - - 2010
Carotid plaque with hemorrhage leads to cerebral embolism and ischemic stroke. Plaque angiogenesis and angiogenetic factors such as vascular endothelial growth factor (VEGF) are critical in the progression of atherosclerotic carotid plaque and intraplaque hemorrhage. The correlation between plaque angiogenesis and presence of clinical symptoms was studied in 41 specimens ...
Potpara Tatjana S - - 2010
Arterial thromboembolism is a sudden obstruction of arterial blood flow caused by dislodgment of a blood clot from the site of its formation. Atrial fibrillation (AF) is the most common cardiac arrhythmia and a major risk factor for arterial thromboembolism in clinical practice. Most of AF-related arterial thromboembolic events affect ...
Baumgartner Ralf W - - 2010
This manuscript reviews the management of patients with spontaneous dissection of the cervical internal carotid artery (sICAD). Recommendations are not based on controlled-randomized trials, but on case-control and observational, hospital-based studies, and case reports. Vascular risk factors seem to be as prevalent in patients with sICAD as in age-matched, healthy ...
Fields Jeremy D - - 2010
Intracranial stenosis accounts for 8-10% of all ischemic strokes in North America, a frequency slightly less than that of extracranial carotid stenosis. Among patients presenting with transient ischemic attack or stroke due to intracranial stenosis, the risk of recurrent stroke in the first year after initial symptoms is about 14%. ...
Masuoka Toru - - 2010
The intracranial internal carotid artery (ICA) is a muscular artery and lacks external elastic lamina (EEL). Stenosis of the intracranial ICA is relatively uncommon, but the most common site is the cavernous portion. The characteristics of the arterial wall structures were examined using serial 3-mm sections of 32 intracranial ICAs ...
Nii Kouhei - - 2010
A 62-year-old man experienced transient episodes of vertigo associated with left upper extremity weakness. Cerebral angiography showed 75% right internal carotid artery (ICA) stenosis and divergence of a persistent primitive hypoglossal artery (PPHA) distal to the stenosis. The area of stenosis was at a high position and he had a ...
Christou P - - 2010
Examine the prevalence of carotid artery calcifications in standard dental panoramic radiographs (OPT), their association to gender, medical history and oral status. Assess the predictive value of a dental OPT in early diagnosis of carotid artery calcifications. Fourteen patients admitted to Geneva University Hospital for recent ischemic stroke and stenosis ...
Enzinger Christian - - 2010
Experimental data suggest that high-grade vascular stenosis may induce chronic cerebral tissue damage. We tested this hypothesis in 97 patients with a ≥70% unilateral internal carotid artery (ICA) stenosis (mean age: 69.1 ± 10.2 years), comparing intraindividual side-to-side differences in hemispheric brain and white matter hyperintensity (WMH) volumes. Patients with ...
Chung Pil-Wook - - 2010
BACKGROUND: Our aim was to investigate the distribution pattern of cerebral artery calcification and its association with white matter hyperintensities (WMH). METHODS: We identified 159 consecutive patients with acute ischemic stroke. Calcifications of cerebral arteries and WMH were graded. RESULTS: Cerebral artery calcification was found in 137 patients (86.2%). The ...
Bejiqi Ramush A - - 2010
Congenital diaphragmatic hernia is one of the severe congenital pulmonary anomaly (PA) associated with pulmonary hypoplasia, pulmonary sequestration and severe respiratory distress. The aim of this study was to present difference between measurements of the size of fetal pulmonary artery and pulmonary branches (PB) in normal growth fetuses and comparison ...
Meerwaldt Robbert - - 2010
Stroke is the third most common cause of mortality, and carotid artery stenosis causes 8% to 29% of all ischemic strokes. Best medical treatment forms the basis of carotid stenosis treatment, and carotid endarterectomy (CEA) has an additional beneficial effect in high-grade stenosis. Carotid angioplasty and stenting (CAS) has challenged ...
Shaikh Niaz Ahmed - - 2010
OBJECTIVE: To determine the frequency and characteristics of carotid artery stenosis in acute ischaemic stroke patients and to assess the significance of common risk factors for carotid stenosis in these patients. METHOD: One hundred consecutive patients admitted with acute ischaemic stroke were included in the study. The relevant history, physical ...
Amano Mizuki - - 2010
An 85-year-old man presented with a rare large aneurysm of the extracranial internal carotid artery (ICA) due to acute otitis media manifesting as Vernet's syndrome 2 weeks after the diagnosis of right acute otitis media. Angiography of the right extracranial ICA demonstrated an irregularly shaped large aneurysm with partial thrombosis. ...
Watanabe Masao - - 2010
It is not known whether stroke patients with intracranial stenosis often have lower extremity atherosclerosis. The aim of our study was to elucidate this issue. Consecutive stroke patients who had cerebral angiography were prospectively enrolled in this study. Cerebral artery and lower extremity artery stenoses were evaluated simultaneously using conventional ...
Saqqur Maher - - 2010
Arterial flow velocity changes on transcranial Doppler can reflect changes in cerebral flow during position-induced ischemia if obtained during short-term monitoring of positional changes. Our multicenter group monitored symptomatic and asymptomatic arteries in patients with recurrent neurological deficits during positional changes and documented intracranial arterial stenosis. Bilateral posterior cerebral and ...
Rajendra Ns - - 2010
Cerebrovascular disease is a major cause of mortality and morbidity worldwide. Ischemic stroke is the most common manifestation, encompassing a wide variety of causative mechanisms. We present the case of a middle-aged male patient with spontaneous coronary artery dissection in the presence of anti-cardiolipin antibodies, leading to left ventricular thrombus ...
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