Search Results
Results 201 - 250 of 1494
< 1 2 3 4 5 6 7 8 9 10 >
Luo Chao-Bao - - 2009
BACKGROUND: Simultaneous multiple intracranial carotid injuries (ICIs) after head trauma are rarely referred for treatment and are often times fatal. The purpose of this study was to describe the potential angiographic pitfalls in diagnosis of multiple ICIs and to report the principles of endovascular management in 15 patients with 34 ...
Akhtar Waseem - - 2009
OBJECTIVE: To determine frequency of carotid artery disease in patients undergoing elective coronary artery bypass grafting (CABG) using Doppler sonography. STUDY DESIGN: Observational study. PLACE AND DURATION OF STUDY: Radiology Department, The Aga Khan University Hospital, Karachi, from January 2005 to September 2008. METHODOLOGY: Patients with known cardiovascular disease waiting ...
Markatis F - - 2009
The standard route for carotid artery stenting (CAS) is the femoral one, leaving the brachial access as a secondary option. Various anatomic specifications, or occlusions of the routing arteries, make carotid stenting impossible. Percutaneous cervical puncture of the common carotid artery, is a method which can solve access problems. We ...
Cicorella Nicola - - 2009
OBJECTIVE: To investigate the usefulness of carotid ultrasound evaluation in predicting the presence and the extent of coronary artery disease in a consecutive series of patients. DESIGN: We examined retrospectively 1337 patients in whom both coronary angiography and carotid ultrasound were evaluated, from 1995 to 2005. Markers of carotid artery ...
Qu Yanming - - 2009
Restenosis is one of several complications following carotid endarterectomy (CEA). The pathogenesis of restenosis may be related to postsurgery inflammation and leukocyte recruitment mediated by cellular adhesion molecules. In this study, we examine the role of vascular cell adhesion molecule-1 (VCAM-1) in carotid neointimal hyperplasia following carotid surgical mechanical de-endothelialization ...
de Andrade Claudia Roberta - - 2009
Our aim was to investigate the effects of ageing on the vascular contractility of carotid and basilar arteries from guinea-pigs, in a model of total stenosis. Moreover, we attempted to identify whether total stenosis of the left common carotid (stenosed) in adult guinea-pigs, would affect the contractions of contralateral carotid ...
Underhill Hunter R - - 2009
We sought to identify clinical and/or plaque characteristics that affect atherosclerotic disease progression and arterial remodeling in the carotid artery with subclinical stenosis. Increasing severity of stenosis has been associated with a higher risk of stroke. Factors that drive subclinical lesions to become stenotic plaques remain ambiguous. Carotid magnetic resonance ...
Polak Joseph F - - 2010
We propose to study possible differences in the associations between risk factors for cardiovascular disease (myocardial infarction and stroke) and carotid intima-media thickness (IMT) measurements made at 3 different levels of the carotid bifurcation. We conducted a cross-sectional study of a cohort of whites and blacks of both genders with ...
Yuan Shi-Min - - 2009
Patients with combined carotid and coronary arterial diseases pose a high risk of cerebrovascular events, and the treatment of choice with either a simultaneous or a staged surgical procedure remains controversial. The literature of combined carotid and coronary arterial diseases of a recent decade in English was retrieved. Totally 41,901 ...
Takayama Katsutoshi - - 2009
A 77-year-old man presented with transient motor weakness of the left hand. Cerebral angiography showed 90% stenosis at the origin of the right internal carotid artery. Carotid artery stenting (CAS) was performed 3 weeks later, and a large intraluminal thrombus was found during the procedure. The blood around the thrombus ...
Cata J P - - 2009
Carotid artery ballooning and stenting is a percutaneous interventional therapy for the treatment of patients with atherosclerotic occlusive disease of the carotid artery. Patients with severe comorbidities are usually considered candidates for this procedure. The carotid artery stenting can be done under either general or strict local anesthesia, or alternatively ...
Sayed A - - 2010
OBJECTIVES: Aneurysm formation in Behcet's disease (BD) rarely involves extracranial carotid arteries. We report our experience of the management of extracranial carotid artery aneurysms (ECAAs) in BD. MATERIALS AND METHODS: Data of patients with Behcet ECAAs presenting from 1997 to 2008 were retrospectively collected focusing on the different treatment modalities, ...
Amaranto Daniel J - - 2009
In 1994, our hospital reported a significant gender disparity in the treatment of peripheral artery disease (PAD). The objective of this study was to determine if this gender-based treatment disparity still persists after 15 years. A retrospective review of patients with PAD and carotid artery disease based on vascular laboratory ...
Dahn Michael - - 2009
Carotid angioplasty requires early placement of a cerebral protection device in an effort to minimize cerebral embolization during the conduct of the subsequent angioplasty and stenting procedure. In patients who exhibit a very critical internal carotid artery (ICA) stenosis (approximately 99%), initial passage of the lesion may not be possible ...
Larrazabal Ramiro - - 2010
BACKGROUND: Transfemoral approach for endovascular interventions is not always possible in cases of unfavorable anatomy. We report our experience using a transcervical approach with carotid cut down and direct, controlled puncture of the carotid artery. METHODS: Four patients underwent surgical exposure of the carotid artery for endovascular procedures. One patient ...
Cardaioli Paolo - - 2009
PURPOSE: To describe the multi-wire technique that facilitates cannulation of the carotid artery during angioplasty and stenting in patients with difficult neck anatomy. TECHNIQUE: When cannulation of the common carotid artery (CCA) was not effective with a 5-F diagnostic mammary artery catheter and standard single-wire technique, a 0.035-inch hydrophilic guidewire ...
Danelson Kerry A - - 2009
In a far-side crash configuration, the occupant can experience severe excursion from the seat space. Given this challenge, there are research efforts focused on alternate restraints, such as four-point belts. A potential implication of this geometry would be interaction of the belt with the occupant's neck. This study examines the ...
Haverkort J W - - 2009
The aim of Magnetic Drug Targeting (MDT) is to concentrate drugs, attached to magnetic particles, in a specific part of the human body by applying a magnetic field. Computational simulations are performed of blood flow and magnetic particle motion in a left coronary artery and a carotid artery, using the ...
Lagudis Sofia - - 2009
The effect of dobutamine on carotid and brachial arteries compliance and the association of L-arginine as a potential nitric oxide pathway restorer were evaluated in patients with heart failure. Twenty-seven outpatients participated. Drugs used for the treatment of heart failure were withheld at least 24 hours before the study. The ...
Gouvea Adriele Ferreira - - 2009
More than 50% of cerebrovascular accidents are caused by atherosclerotic disease at the carotid artery.1 Carotid artery stenosis may be detected by the standard method of duplex ultrasound (DUS), while calcifications can be detected by panoramic radiographs.2-4 Panoramic radiographs may be used as a selective tool, reducing health costs by ...
Pornprasertsuk-Damrongsri Suchaya - - 2009
OBJECTIVES: The purpose of this study was to determine the prevalence of carotid artery calcifications (CAC) detected on panoramic radiographs in patients with metabolic syndrome (MetS). STUDY DESIGN: Eighty-five Thai subjects (29 men, 56 women) who had MetS according to the International Diabetes Federation definition were evaluated for CAC detected ...
Khosropanah S H - - 2009
OBJECTIVES: Carotid artery calcification is responsible for an estimated 5% of ischaemic strokes. Carotid doppler sonography (DS) is a frequently used non-invasive method for assessing carotid artery stenosis and calcification. This study assessed the utility of panoramic radiography to detect any carotid artery calcification in patients with and without coronary ...
Siminelakis Stavros - - 2009
Cardiovascular diseases are among the leading causes of death in women. Significant gender differences have been reported among patients with symptomatic carotid artery disease. The aim of this study is to examine if the female sex is a predisposing factor for carotid stenosis in coronary artery bypass grafting (CABG) patients. ...
Banneheka Shyama - - 2010
A middle thymothyroid artery, arising from the anterior aspect of the right common carotid as an anomalous branch was observed in a 71-year-old Japanese male cadaver. It soon divided into a thyroidea ima artery, a branch supplying the sternoclavicular joints, and a thymic branch. In addition, twigs from these three ...
Rosenthal David I - - 2010
To investigate the dosimetry and feasibility of carotid-sparing intensity-modulated radiotherapy (IMRT) for early glottic cancer and to report preliminary clinical experience. Digital Imaging and Communications in Medicine radiotherapy (DICOM-RT) datasets from 6 T1-2 conventionally treated glottic cancer patients were used to create both conventional IMRT plans. We developed a simplified ...
Reinald Nicoleta - - 2010
AIMS: To develop a reproducible and accessible model of elastase-induced fusiform aneurysm in carotid rabbit arteries. METHODS: Elastase, at a concentration of 1-30 U, was incubated into the lumen of carotid rabbit arteries. Four weeks later, angiography, histomorphometry, immunohistochemistry and zymography were performed. RESULTS: The optimal concentration of elastase in ...
Antonini-Canterin Francesco - - 2009
BACKGROUND: There is little information about mechanical properties of large arteries in patients (pts) with aortic stenosis (AS). METHODS: Nineteen patients with AS (aortic valve area: 0.88 +/- 0.29 cm(2)) and 24 control subjects without AS but with a similar distribution of risk factors were recruited. beta index, pressure-strain elastic ...
de Almeida John R - - 2009
OBJECTIVES/HYPOTHESIS: Chromosome 22q11.2 deletion syndromes (22q11DS), such as velocardiofacial syndrome and DiGeorge syndrome demonstrate developmental anomalies affecting the branchial arch structures. Mouse models have shown abnormalities of both the thyroid gland and the common carotid arteries and have suggested a developmental link between the two structures. Here we examine radiological ...
Kiernan Thomas J - - 2009
Carotid duplex ultrasonography (DUS) is routinely performed prior to coronary artery bypass graft surgery (CABG) on all patients > 65 years old because of the reported associated risk of finding concomitant carotid artery stenosis. Identifying risk factors that correlate with severe carotid stenosis may result in more cost-effective screening for ...
Ilhan Enver - - 2009
Paget-von Schroetter syndrome refers to spontaneous thrombosis of the subclavian vein and constitutes 0.5-1% of all venous thromboses. It is prevalent among young and healthy adult males who engage in sports. Early diagnosis and treatment is essential to avoid long-term sequelae. Herein, we report a 42-year-old male weightlifter who presented ...
Ross Charles B - - 2009
Experience with carotid artery stenting (CAS) as an alternative to carotid endarterectomy (CE) for management of carotid stenosis continues to evolve. We report the case of a 64-year-old man who was treated with bilateral CAS for stenoses, which developed 7 years following thyroidectomy, neck dissection, and radiotherapy. Although long considered ...
Katano Hiroyuki - - 2010
BACKGROUND: The twisted carotid bifurcation is a variant in which the ICA courses medially to the ECA. Because descriptions in the literature have been limited, we here document clinical features and surgical experience of CEA for cases of twisted carotid bifurcation. METHODS: Seventy-five out of a total of 106 consecutive ...
Katano Hiroyuki - - 2009
BACKGROUND: The twisted carotid bifurcation is a variant in which the ICA courses medially to the ECA. Because descriptions in the literature have been limited, we here document clinical features and surgical experience of CEA for cases of twisted carotid bifurcation. METHODS: Seventy-five out of a total of 106 consecutive ...
Zahn Ralf - - 2009
OBJECTIVES: To determine the influence of the side intervened upon on outcomes during carotid artery stenting (CAS). BACKGROUND: Anatomic and technical aspects may influence the results of CAS. The value of the side intervened upon has not been analyzed yet. METHODS: We analyzed data from the Carotid Artery Stent (CAS)-Registry. ...
Cabrera Fischer Edmundo I - - 2009
Background: Vascular access (VA) dysfunction is a common cause of hospitalization in chronically hemodialyzed patients (CHP) limiting the improvement in health and has been largely studied in order to decrease the morbidity events that involves both the artery and the vein used in the construction of the fistula. In parallel, ...
Kumar Nishant - - 2009
Macaque monkeys are used in many research applications, including cerebrovascular investigations. However, detailed catalogs of the relevant vascular anatomy are scarce. We present our experience with macaque vessel patterns as determined by digital subtraction angiography of 34 different monkeys. We retrospectively analyzed digital subtraction angiograms obtained during experimental internal carotid ...
Wong Emily Y - - 2009
The assessment of flow disturbances due to carotid plaque ulceration may provide added diagnostic information to Doppler ultrasound (DUS) of the carotid stenosis, and indicate whether the associated hemodynamics are a potential thromboembolic source. We evaluated the effect of ulceration in a moderately stenosed carotid bifurcation on distal turbulence intensity ...
Cerase Alfonso - - 2009
In a 33-year-old male patient with multiple sclerosis, brain magnetic resonance imaging incidentally showed a narrow right intracranial internal carotid artery. Gadolinium-enhanced magnetic resonance angiography showed absence of the right common carotid artery. Right external and internal carotid arteries arose separately from the ipsilateral innominate artery and subclavian artery, respectively. ...
Warwick Richard - - 2009
Cerebral complications after cardiac surgery are a significant cause of morbidity, mortality, and financial cost. Numerous risk factors have been proposed to explain the risk of cerebral damage. Carotid artery disease has an important role. Percentage carotid artery stenosis is the only measure of carotid artery disease that is used ...
Shichita Takashi - - 2009
PURPOSE: This study aimed to clarify the angiographic characteristics of radiation-induced carotid stenosis. METHODS: We evaluated 11 carotid arteries of patients after radiotherapy (radiotherapy group) and 26 carotid arteries of age- and gender-matched patients without a history of radiotherapy (control group). All patients had carotid stenosis detected by digital subtraction ...
Chen Lei - - 2009
Cerebrovascular research suffers from a lack of reliable methods with which to deliver exogenous substances effectively into the central nervous system (CNS) of small experimental animals. Here we describe a novel vessel microport surgical technique for a variety of cerebrovascular applications that is reproducible and well tolerated in mice. The ...
Guerra Miguel - - 2009
Staged or combined carotid endarterectomy (CEA) offers the potential benefit of decreased neurological morbidity during and after cardiac surgery; however, the strategy for treating unstable high-risk patients, who need urgent coronary artery surgery, remains unresolved. We report in-hospital and 30-day outcomes of 23 consecutive patients admitted with unstable angina, who ...
Derakhshan Jamal J - - 2009
To describe a new method for performing dark blood (DB) magnetization preparation in TrueFISP (bSSFP) and apply the technique to high-resolution carotid artery imaging. The developed method (HEFEWEIZEN) provides directional flow suppression, while preserving bSSFP contrast, by periodically applying spatial saturation in short repetition time (TR) TrueFISP. Steady-state free precession ...
Cowley P O - - 2009
Carotid artery stent placement, performed for correction of an asymptomatic severe stenosis, leads to the resolution of persistent and troublesome pulsatile tinnitus. Tinnitus has been reported as a consequence of severe carotid stenoses on previous occasions. This case highlights how an aberrant occipital artery originating above a carotid artery stenosis ...
Yamasaki Hiroyuki - - 2009
A 69-year-old man presented with a rare case of retinal artery embolization, which occurred as a complication of carotid angioplasty and carotid artery stenting performed for recurrent cerebral infarction. Magnetic resonance imaging and angiography showed right internal carotid artery stenosis with ulceration. Carotid angioplasty and carotid artery stenting were performed ...
Lee Min-Yi - - 2009
Wall shear stress (WSS) has been shown to be a critical determinant of vessel diameter implicated in vascular remodeling and atherogenesis. Carotid intima-media thickness (IMT), resistive index (RI), and pulsatility index (PI) have been used as relevant indictors for carotid atherosclerosis. The study aimed to investigate the relationship between hemodynamic ...
Eberth J F - - 2009
Mouse models of Marfan Syndrome (MFS) provide insight into the type and extent of vascular abnormalities manifested in this disease. Inclusion of the mgR mutation causes the otherwise normal extracellular matrix glycoprotein fibrillin-1 to be under-expressed at 15-25% of its normal level, a condition seen in MFS. Aortas in patients ...
Nagamine Wayde H - - 2009
BACKGROUND: The distinction between lesions of the deep parotid space and those of the carotid space has been greatly facilitated by cross-sectional imaging, particularly magnetic resonance imaging (MRI), due to 1) good assessment of parapharyngeal fat displacement, and 2) reliable and consistent identification of the carotid artery. While masticator space ...
Gibson T J - - 2009
AIM: To investigate the ability of non-penetrative captive-bolt stunning delivered after ventral-neck incision to ameliorate responses to noxious stimulation associated with slaughter by ventral-neck incision in halothane-anaesthetised calves. METHODS: Seven calves were minimally anaesthetised with halothane, using an established anaesthesia protocol. Electroencephalographic (EEG) indices of cerebrocortical activity were measured in ...
Mangialardi N - - 2009
AIM: The aim of this study was to evaluate the usefulness of the temporal approach during coronary artery stenosis (CAS) to overcome tortuosity in case of difficult arch anatomy or tortuous common carotid artery, and to provide cerebral protection of proximal lesions of the supra-aortic trunks during stenting. METHODS: The ...
< 1 2 3 4 5 6 7 8 9 10 >