Search Results
Results 251 - 300 of 759
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Pannier Bruno - - 2005
The aorta is the principal capacitive element of the arterial tree and its increased stiffness, determined by measurement of aortic pulse wave velocity (PWV), is a strong independent predictor of cardiovascular mortality in the general population and end-stage renal disease (ESRD) patients. Whether stiffness of ESRD patients' peripheral arteries has ...
Inoue Tatsuyuki - - 2005
Paradoxical embolism may occur in patients with acute pulmonary thromboembolism, when patent foramen ovale (PFO) coexists with pulmonary hypertension (right-left shunt). There have been few case reports of paradoxical embolism in peripheral arteries coincident with acute pulmonary thromboembolism. Here, we describe a case of paradoxical peripheral embolism associated with PFO ...
Al-Omran Mohammed - - 2005
Peripheral arterial disease (PAD) is a marker of advanced atherosclerosis with an elevated risk of cardiovascular mortality and morbidity. The modification of risk factors to improve the outcomes of patients with coronary artery atherosclerosis is proven and has become an accepted standard of care that is widely followed. Recent evidence ...
Aliberti Giuseppe - - 2005
The aim of this study was to evaluate the role of the pulmonary vessel endothelium in the metabolism of fibrinogen (FBG), by measuring the FBG, D-dimer, and fibrin(ogen) degradation product levels in the blood from pulmonary and radial arteries from 99 patients undergoing aortocoronary bypass. For comparison, protein C, protein ...
Leithäuser Boris - - 2005
This case report describes a 22-year-old woman with severe arterial ischemia leading to claudication and ulceration of the feet, presumably due to long-term abuse of amphetamine derivates, such as "speed" or "ecstasy," and cannabis. Known causes for peripheral occlusive disease, such as atherosclerosis, vasculitis, or collagen vascular disease, were excluded. ...
Schneditz Daniel - - 2005
Impaired arterial compliance contributing to increased blood pressure and cardiac workload is well accepted as a major factor in cardiovascular disease. Information on local arterial compliance is obtained when analyzing the deformation of selected arterial segments under stress. A more global measure of arterial compliance is obtained by analyzing the ...
Morales Fernando - - 2005
The standardisation of manoeuvres to perform clinically discriminative microvascular flow reserve tests is still poorly developed, as well as the response analysis. The aim of this study was to establish a reproducible analysis method for the post-occlusive reactive hyperaemia (PORH) test measured using laser Doppler perfusion monitoring (LDPM). LDPM data ...
Chauvapun Joe R - - 2005
Distal peripheral microembolism is caused by embolization of atherosclerotic debris into small arteries and arterioles. The recent advances in endovascular technique have been met with a gradual increase in the incidence of iatrogenic atheroembolism. This review seeks to explore the nature of distal peripheral microembolism, pathophysiology, and the management options, ...
Hannerz Jan - - 2005
After dissection with complete occlusion of the internal carotid artery, a 58-year-old man started to suffer from intense cluster headache-like attacks. Magnetic imaging showed signs of nonsymptomatic cerebral emboli, which could be dated to have occurred in temporal relation to the start of the attacks, all on the right side. ...
Eiseman Ben - - 2005
PURPOSE: To adapt ultrasound methods used to measure blood flow in the extremities to quantify mandible blood flow in order to determine the role of ischemia in the pathogenesis of mandible atrophy and tooth loss in the elderly. PATIENTS AND METHODS: Doppler and duplex ultrasound techniques as used in measurement ...
Bishara R A - - 2004
AIM: The objective of this study was to assess the sensitivity and specificity of a newly developed parameter: the ankle peak systolic velocity (APSV) to provide an objective assessment of the degree of peripheral ischemia. METHODS: In phase 1 of the study: data was prospectively collected for 21 ischemic limbs ...
Snijder Marieke B - - 2004
OBJECTIVE: To estimate the relation of precisely measured regional body composition with peripheral and central arterial stiffness in the elderly. METHODS: We investigated 648 participants (mean age 69.0 +/- 6.0 years) of the Hoorn Study, a population-based cohort study. Trunk fat, leg fat, trunk lean and leg lean mass were ...
Hobbs S D - - 2004
The Heart Outcomes Prevention Evaluation (HOPE) study has provided evidence for the use of ramipril for secondary cardiac prevention for patients with peripheral arterial disease. Despite this many vascular surgeons and general practitioners are reluctant to prescribe ACE inhibitors in a group of patients perceived to have a high incidence ...
Medina-Ruiz Arturo - - 2004
Peripheral arterial disease results from the atherosclerotic involvement of arteries of the upper and lower extremities as well as that of the renal and carotid arteries. In view of the importance of its early recognition we have summarized the clinical manifestations, diagnostic procedures and tests, and the current medical and ...
Muhs A - - 2004
Local infusion of recombinant monocyte chemoattractant protein-1 (MCP-1) has been shown to enhance collateral artery formation in rabbit and pig hindlimb models. Owing to clinical disadvantages of protein infusion, a nonviral, liposome-based MCP-1 gene transfer was developed. Collateralization in a porcine hindlimb model served to provide a proof-of-principle for the ...
Wiesmann Frank - - 2004
OBJECTIVES: The purpose of this study was to assess vascular dysfunction in young smokers by high-resolution magnetic resonance imaging (MRI). BACKGROUND: Cigarette smoking is a well-known cause of endothelial dysfunction, reflected by impaired brachial artery reactivity to hyperemia. We hypothesized that smoking induces both peripheral endothelial dysfunction and altered function ...
de Morais Filho Domingos - - 2004
The duplex exam is widely used in the diagnosis of peripheral arterial occlusive disease. It presents some drawbacks, however, such as calcified plaques, sequential stenosis, and time-consuming examinations. A type of waveform analysis, referred to in this study as segmental analysis, was conducted to try to find solutions to these ...
Norman P E - - 2005
Vitamin D is generally associated with calcium metabolism, especially in the context of uptake in the intestine and the formation and maintenance of bone. However, vitamin D influences a wide range of metabolic systems through both genomic and nongenomic pathways that have an impact on the properties of peripheral arteries. ...
Kirvaitis Romas J - - 2004
Optical coherent reflectometry, a forward-looking, fiberoptic-guided device was used in 72 patients to direct radiofrequency energy across the central intraluminal portion of 75 chronic total occlusions in peripheral arteries (iliac, femoral, and popliteal) that failed attempts with conventional guidewires. The system was successful in crossing 76% of the chronic total ...
McLemore Gabrielle L - - 2004
Prenatal exposure to tobacco smoke increases risk of sudden infant death syndrome (SIDS). Marijuana is frequently smoked in conjunction with tobacco, and perinatal exposure to marijuana is associated with increased incidence of SIDS. Abnormalities in peripheral arterial chemoreceptor responses during sleep may be operative in infants at risk for SIDS, ...
Li Jing - - 2004
Regulator of G protein signaling 5 (RGS5), an inhibitor of Galpha(q) and Galpha(i) activation, was recently identified among genes highly expressed in smooth muscle cells (SMCs) of aorta but not vena cava. This finding prompted the hypothesis that RGS5 provides long-term G protein inhibition specific to normal arterial SMC populations ...
Melzer Christoph - - 2004
Peripheral arterial occlusions are associated with high morbidity. Thrombolysis has become established as effective treatment in clinical practice. Tenecteplase is a new thrombolytic agent that offers advantages over existing drugs with respect to mechanism of action and adverse effects. This case report describes successful thrombolysis of an acute thromboembolic brachial ...
del Rincón I - - 2005
BACKGROUND: Despite increased cardiovascular morbidity and mortality in rheumatoid arthritis, the peripheral arteries remain understudied. OBJECTIVE: To examine the lower limb arteries in age and sex matched, non-smoking subjects with and without rheumatoid arthritis. METHODS: The ankle-brachial index (ABI) was measured at the posterior tibial and dorsal pedal arteries. Arteries ...
Lee Ki-Nam - - 2004
To investigate the correlation between radiologic vascular dilatation and serum nitrite concentration and eNOS expression in the endothelial cell and pneumocyte in a rabbit model of hepatopulmonary syndrome induced by common bile duct ligation (CBDL). Thin-section CT scans of the lung and pulmonary angiography were obtained 3 weeks after CBDL ...
Du Emma Z - - 2004
Thyroid transcription factor (TTF)-1 expression in neuroendocrine tumors (NETs) has not been studied as widely as that in non-NETs, with the exception of small cell carcinomas, in which TTF-1 is highly sensitive but not specific for a primary lung tumor. The reported incidence of TTF-1 expression in pulmonary carcinoids has ...
Schirmer Stephan H - - 2004
In the course of peripheral artery occlusive disease, blood flow to peripheral tissue progressively decreases in a substantial portion of patients, leading to insufficient oxygenation and to the occurrence of claudication or critical limb ischemia. Arteriogenesis (collateral artery growth) is a powerful natural mechanism by which large conductance vessels develop ...
Manfredini Roberto - - 2004
The authors report the case of a 42-year-old female mild smoker admitted to the Hospital of Ferrara for the onset of asymptomatic necrotic ulcerations localized to the second, third, and fourth toes of left foot. Physical examination showed asphygmia of inferior limb distal peripheral pulses, with localized extremity marbleized and ...
Ferreira Isabel - - 2004
Central and peripheral fatness seem to confer opposite (i.e. adverse vs. protective) effects on cardiovascular risk, but how this occurs is not clear. In addition, the role of peripheral lean mass needs to be elucidated. We therefore investigated, in 336 (175 women) 36-yr-old and apparently healthy adults, the relationship between ...
Ozdemir Ozcan - - 2004
Atherothrombosis is a generalized disease process that affects large- and medium-diameter arteries throughout the arterial tree. In this study, we aimed to evaluate the correlation between collaterals in different vascular beds. Patients who had undergone digital subtraction angiography for symptomatic lower extremity peripheral arterial disease and coronary angiography after an ...
Niezgoda Jeffrey A - - 2004
Although wound care therapy has made significant advances in the past several years, clinicians encounter dilemmas on a day-to-day basis. One of these dilemmas is managing ischemic wounds. Certain characteristics (ischemic appearance, a history of a lack of healing, physical examination that finds no pulses, or a transcutaneous oxygen evaluation ...
Shankar V K - - 2004
We undertook this study to determine whether changes in blood coagulability associated with peripheral arterial occlusive disease are due to contact with the atherosclerotic arterial wall or passage through distal ischemic tissue. Thirty patients with peripheral arterial occlusive disease undergoing angiography participated in the study. Ankle-brachial pressure index was recorded ...
John L R - - 2004
A forward mathematical model of the human arterial system, based on an electrical transmission line analogy, has been developed, using a new method for the calculation of peripheral impedance. Simulations of the human arterial system under normal and stenotic arterial conditions were compared with other published simulations, as well as ...
Wang J J - - 2004
The propagation of the arterial pulse wave in the large systemic arteries has been calculated using a linearised method of characteristics analysis to follow the waves generated by the heart. The model includes anatomical and physiological data for the 55 largest arteries adjusted so that the bifurcating tree of arteries ...
Goor Daniel A - - 2004
BACKGROUND: Mental stress testing is considered a reliable method for diagnosing patients with coronary heart disease (CHD) who may be at risk for future events. It has been shown recently that myocardial ischemia induced during mental stress tests is specifically associated with peripheral arterial vasoconstriction. HYPOTHESIS: The study was undertaken ...
Mihaljević Slobodan - - 2004
Thromboembolic occlusion of peripheral arteries is a common problem in patients referred to vascular surgery departments. Standard treatments include catheter aspiration techniques, use of fibrinolytic agents and surgical thrombendarterectomy. Recent reports have described the use of hyperbaric oxygen therapy in patients with limb ischemia, yet their main focus has been ...
Yu Xianyi - - 2004
Nitric oxide (NO) serves many vasoprotective roles, but the massive release of NO causes arterial wall degeneration. We investigated whether enhanced nitric oxide synthase (iNOS) expression in peripheral blood leukocytes and circulating endothelial cells mirrors the progression of coronary arterial lesions in 55 children with acute Kawasaki disease (KD), including ...
Pigna A - - 2004
This report describes the case of two newborns who suffered unusual complications after peripheral insertion of a central venous catheter. In one baby a fragment of the catheter tip became embolized in a peripheral branch of the left pulmonary artery. In the other baby, the catheter perforated a peripheral branch ...
Zolli A - - 2004
Left untreated, peripheral arterial disease can lead to chronic leg ischaemia, causing pain, foot ulcers and gangrene, and increasing the risk of amputation. The ulcers of two patients treated with cilostazol after revascularisation healed completely
Cheung, Yiu-fai
(Uncorrected OCR) Abstract of the thesis entitled An Analysis of the Determinants of Peripheral Conduit Arterial Stiffness in Children and Teenagers in Health and Disease submitted by Yiu-fai CHEUNG for the degree of Doctor of Medicine at The University of Hong Kong in January 2004 Arterial stiffness has emerged as ...
Martens S - - 2004
BACKGROUND: Open heart surgery is associated with important risk of cerebral and peripheral organ dysfunction, attributed in part to microbubbles generated in or not eliminated from the ECC. For elimination of microbubbles, a dynamic bubble trap (DBT) was developed for the arterial line of ECCs. METHODS: Bubble eliminating properties of ...
Orito Kensuke - - 2004
We have developed an in vivo experimental model for evaluating peripheral arterial insufficiency and predicting the efficacy of drugs on intermittent claudication (IC). We found that rats that had been running normally on a treadmill developed a gait disturbance when a hindlimb artery was unilaterally occluded. We hypothesized that the ...
Sykes J E - - 2003
A case of peripheral arterial tumor embolization in a cat is described. The cat presented with signs of aortic thromboembolism, including decreased peripheral pulse quality, pallor, and coolness of the distal limbs, as well as proprioceptive deficits. Thoracic radiographs revealed a cavitary lung mass; echocardiography was unremarkable. Cytologic evaluation of ...
Mosley J G - - 2003
BACKGROUND: Athletes may present with arterial problems that are unusual in the typical patient with peripheral vascular disease. They are often handicapped only at the extremes of physical exertion and may have normal arterial pulses beyond any arterial occlusion. METHODS: A Medline search was undertaken for articles on arterial disease ...
Mackrell Peter J - - 2003
Mechanical closure devices for arterial hemostasis after angiography, such as the Perclose suture-mediated closure system, are designed to decrease time to ambulation and improve patient comfort. Although these devices are safe and efficacious, to date there has been little reported about use of the Perclose device in a cohort consisting ...
Violi F - - 2003
Peripheral arterial disease (PAD) is an important manifestation of systemic atherosclerosis that is characterized by obstruction of the arteries in the lower limbs. Experimental and epidemiological studies suggested a key role for oxidative stress in initiation and progression of the atherosclerotic process. The results of these studies provided a good ...
Nussbaum Eric S - - 2003
OBJECTIVE: To describe the management and outcomes of seven patients with fusiform aneurysms of the peripheral posteroinferior cerebellar artery (PICA). METHODS: Medical records and neuroimaging studies of seven patients who underwent surgical treatment of fusiform aneurysms of the peripheral PICA were reviewed. Average follow-up time was 1.5 years, and no ...
Kizu Akane - - 2003
The prevalence of peripheral vascular disease (PVD) in diabetic patients is manyfold higher than that of age- and sex-matched nondiabetic subjects. This study was designed to evaluate the relationship between quantitatively determined peripheral circulation in the lower extremities and arterial wall thickness or stiffness in 68 patients with type 2 ...
Bonham Phyllis Ann - - 2003
Perform this simple, noninvasive procedure for an accurate picture of lower extremity arterial perfusion in a patient with diabetes or peripheral arterial disease.
Visseren F L J - - 2003
Patients with peripheral artery disease suffer from a high incidence of ischemic vascular complications in coronary, cerebral, and peripheral vascular beds. Reduction of atherothrombotic complications with aspirin or clopidogrel has proven to be successful. The role of oral anticoagulants in patients with symptomatic peripheral artery is limited. Randomized controlled trials ...
Gunnarsson Ragnar - - 2004
Wegener's granulomatosis (WG) is a systemic granulomatous vasculitis affecting medium and small arteries, venules, and arterioles. The upper and lower respiratory tract and kidney are primarily involved. Patients with classic WG essentially present with upper airway and pulmonary involvement. Renal disease is common. Involvement of other organ systems is also ...
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