Search Results
Results 401 - 450 of 767
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O'Brien E R - - 2000
Previously, we demonstrated that replication in restenotic coronary atherectomy specimens was an infrequent and modest event. In general, this data was interpreted with caution, as immunocytochemistry for the proliferating cell nuclear antigen (PCNA) was used to subjectively assess proliferation and most of the tissue specimens were resected more than 3 ...
deMello D E - - 2000
Recently, we have identified in the mouse three processes involved in the early development of pulmonary vasculature: angiogenesis for branching of central vessels, vasculogenesis (lakes in the mesenchyme) for peripheral vessels, and a lytic process to establish luminal connection between the two. We have established that these three processes also ...
Adler Y - - 2000
The authors previously demonstrated a significant association between the presence of mitral annulus calcification (MAC) and aortic atheroma, carotid atherosclerotic disease, and coronary artery disease. The present study was designed to determine whether an association exists between MAC and peripheral arterial atherosclerotic disease. Of the 805 patients in whom the ...
Onuoha G N - - 2000
BACKGROUND: Previous studies have established short-term variability in the circulating plasma levels of cardiac peptides such as atrial natriuretic peptide (ANP) and brain natriuretic peptide (BNP). Our aim was to investigate whether such variable patterns could be observed in other vasoactive peptides. METHODS: We measured the immunoreactivity of vasoactive intestinal ...
Ouriel K - - 2000
Acute peripheral arterial occlusion is associated with a high risk of limb loss and death. The high mortality rate is as much a function of the multiplicity of baseline comorbidities as it is a result of the insult from the peripheral ischemia and reperfusion. Less invasive methods of restoring arterial ...
White Christopher J - - 2000
There are compelling reasons for cardiologists to undertake a more global approach to patients with peripheral vascular diseases: atherosclerosis is a 'systemic' disease frequently causing both coronary and peripheral vascular problems in the same patient; coronary artery disease is the most common cause of morbidity and mortality in patients with ...
Chukhraev A M - - 2000
The authors analyze the causes of complications after nursing interventions on peripheral veins. Twenty-one percent of all venipunctures involve complications, mainly subcutaneous hematomas (62% of all complications), paravasal injection of drugs (28%), spontaneous rupture of the vein (6%), obliteration of the vessel (2%), superficial phlebitis (2%), external bleeding from the ...
Chen Y C - - 2000
BACKGROUND: Femoral, subclavian, and internal jugular veins access have been widely used for temporary vascular access for hemodialysis, but their use has been associated with a significant complication rate. We report in three selected hemodialysis patients with the procedure of direct peripheral venopuncture as temporary vascular access to reduce complications. ...
Tobias J D - - 2000
CONTEXT: The Paratrend monitor provides continuous arterial blood gas monitoring after insertion through a >/=20-gauge arterial cannula. OBJECTIVE: To determine the correlation of arterial blood gas values and the Paratrend monitor placed through a peripheral intravenous catheter. DESIGN: Prospective, open-label evaluation. SETTING: University-based pediatric intensive care unit. PATIENTS: Infants and ...
Hoogeveen E K - - 2000
OBJECTIVES: Hyperhomocysteinaemia is an independent risk factor for peripheral arterial disease (PAD). The localization of peripheral arterial disease is clinically relevant, because proximal (aortoiliac and femoropopliteal) disease is associated with a particularly poor overall prognosis, whereas isolated distal (i.e. crural) disease is associated with a better overall prognosis. The aim ...
Oermann C M - - 2000
Pulmonary infiltrates with eosinophilia (PIE) are a group of heterogeneous disorders having the common findings of lung disease and eosinophilia in the peripheral blood, bronchoalveolar lavage fluid, or pulmonary interstitium. Eleven cases of PIE syndromes were identified through a retrospective and prospective chart review: drug-induced (2), acute eosinophilic pneumonia (3), ...
Goyen M - - 2000
PURPOSE: To determine if ultrasound angioplasty in a percutaneous approach was capable of recanalizing occluded arteries in acute and subacute peripheral arterial occlusions. MATERIALS AND METHODS: We applied an ultrasound angioplasty device in a percutaneous approach in 9 patients with peripheral arterial occlusions. All patients suffered from severe leg ischemia ...
Xiromeritis N - - 2000
Peripheral arterial embolism arising from a malignant tumour is an infrequent manifestation of neoplastic disease and also a rare cause of acute arterial occlusion. A case of recurrent arterial embolism of the lower extremities due to a primary lung cancer is reported and the literature on this topic is reviewed.
Makita S - - 2000
Structural changes in the aortic wall have been reported to be present in aortic dissection (AD), while there have been no investigations concerning peripheral vasomotion characteristics. Peripheral arterial stiffness is an important factor in the regulation of the central aortic pressure because it produces excessive wave reflection. The present study ...
Delis K T - - 2000
PURPOSE: the aim was to investigate the effect of intermittent pneumatic foot compression (IPC(foot)) on popliteal artery haemodynamics in normal individuals and in patients with intermittent claudication due to peripheral vascular disease (PVD) (Fontaine stage II). MATERIAL AND METHODS: popliteal artery volume flow [vFl], pulsatility index [PI], mean velocity [mV], ...
Goyen M - - 2000
The hemostatic puncture closure device Angio-Seal is a quick, safe, and easy-to-use system, allowing rapid sealing of the vascular access site following coronary angiography and interventional procedures. It is advantageous for patients in whom early mobilization is desired and may therefore decrease hospital costs. Despite the documented low complication rate, ...
Veraldi G F - - 2000
Fungal endocarditis becomes complicated by peripheral arterial embolization of the lower limbs in 33%-75% of cases. Although the prognosis of patients with fungal endocarditis has improved somewhat over recent years, it remains poor, especially when the disease is associated with peripheral arterial embolization. We report herein our experience of treating ...
Pilcher J M - - 2000
AIM: To determine the prevalence and severity of asymptomatic carotid artery disease in patients with peripheral arterial disease using colour duplex ultrasound, and to determine any relationship to the severity of peripheral arterial disease or other associated atherosclerotic risk factors. METHOD: Two hundred patients with known peripheral arterial disease but ...
Rémy-Jardin M - - 2000
The objective of this study was to analyze the influence of collimation on the identification of peripheral pulmonary arteries on helical CT scans. Three hundred sixty of 370 consecutive helical CT angiograms of the pulmonary circulation obtained during an 18-month investigation period were considered as technically acceptable for the detection ...
Beyer-Enke S A - - 2000
The aim of the study was to assess the diagnostic value of an intravascular Doppler guidewire in patients with peripheral percutaneous angioplasty (PTA). The prognostic value was also evaluated. Measurements were done prior and following angioplasty in 22 patients with peripheral arterial occlusive disease. As additional therapy, stent insertion and ...
Hoffmann K L - - 1999
Investigations of the equine peripheral vascular system have been constrained by the lack of a non-invasive method of examining the arteries and veins of the limbs of the conscious horse. Precise correlations were established between the gross anatomical features of the peripheral vessels and their B-mode sonographic appearance in each ...
Yoshitomi Y - - 1999
A 20-year-old woman was admitted with increasing breathlessness on exertion. A diagnosis of isolated peripheral pulmonary artery stenosis (PPS) was confirmed by right-sided cardiac catheterization and pulmonary angiography. We tried treatment with a newly developed oral prostacyclin analogue, beraprost sodium. Her symptoms gradually improved 1 month after treatment. After 1 ...
Fujiyama A - - 1999
A-65-year-old man was admitted for coronary and peripheral angiography to evaluate angina pectoris and peripheral vascular disease. Following angiography, he suffered from blue toes, livedo reticularis and progressive renal failure. The patient's condition continued to deteriorate, including the development of malnutrition. Four months later he suddenly developed panperitonitis, went into ...
Morishita R - - 1999
Hepatocyte growth factor (HGF) exclusively stimulates the growth of endothelial cells without replication of vascular smooth muscle cells and acts as a survival factor against endothelial cell death. Therefore we hypothesized that a decrease in local vascular HGF might be related to the pathogenesis of peripheral arterial disease. We initially ...
Buschmann I. - - 1999
After birth, new blood vessel formation proceeds via angiogenesis or arteriogenesis. Angiogenesis (capillary sprouting) results in higher capillary density. Arteriogenesis (rapid proliferation of collateral arteries) is potentially able to significantly alter the outcome of coronary and peripheral artery disease. The processes share some growth features but differ in many aspects.
Lee K N - - 1999
PURPOSE: To evaluate the pulmonary vasculature in patients with hepatopulmonary syndrome. MATERIALS AND METHODS: Conventional computed tomographic (CT) scans in eight patients with hepatopulmonary syndrome were retrospectively evaluated to compare the diameters of the pulmonary trunk, right and left main pulmonary arteries, and peripheral pulmonary vasculature in the right posterior ...
Everitt N J - - 1999
Infusion thrombophlebitis is common and is the principal limitation to intravenous nutrition (IVN) via a peripheral vein, yet its precise pathogenesis is unclear. Prospective observations were performed on patients in whom a hypertonic, acidic, nutritional emulsion was infused via fine-bore polyurethane catheters placed in peripheral veins. B mode ultrasound was ...
Ray S A - - 1999
OBJECTIVES: To determine whether postocclusive laser Doppler fluxmetry (LDF) curves can be related to the arteriographic distribution of disease. DESIGN: Prospective study. MATERIALS: Sixty-nine patients with symptomatic peripheral ischaemia and 15 healthy subjects. METHODS: Laser Doppler fluxmetry (LDF) was monitored on the dorsum of the symptomatic foot following 2 min ...
Beyenal-Ogmen B - - 1999
Hydrostatic measurement of systolic toe blood pressure (HSTBP) is reliable in feet with calcified arteries, when sphygmomanometry fails. When leg is lifted above heart level, weaning of the big toe's arterial pulsations indicates HSTBP. Electrical bio-impedance was assessed to monitor the weaning of arterial pulsations (Medis GmbH, Ilmenau, Germany). In ...
Ger R - - 1999
Transmetatarsal amputations of the toes are very common procedures, particularly involving patients with diabetes mellitus and peripheral vascular disease. A complication of these operations is the onset of gangrene of an adjoining toe, which is usually ascribed to the underlying disease. It is suggested that another explanation may be responsible ...
Guba S C - - 1999
Homocysteine has been identified as an independent risk factor for atherosclerotic and thrombotic disease. Both arterial (cerebrovascular, carotid, coronary, and peripheral arterial) and veno-occlusive disease, jointly termed vascular occlusive disease (VOD) in this review, have been associated with hyperhomocysteinemia. In cases of homocystinuria, plasma homocysteine levels are markedly elevated. In ...
Lawrence P F - - 1998
Studies have shown that 11% to 18% of patients with an abdominal aortic aneurysm (AAA) have a first-degree relative with an AAA. A familial pattern among patients with peripheral arterial aneurysms and arteriomegaly has not been reported. The objective of this study was to examine familial patterns among patients with ...
Beyer-Enke SA - - 1998
RATIONALE AND OBJECTIVES: The aim of the study was to assess parameters for immediate decisions to optimize peripheral arterial angioplasties and prognostic factors with the help of a intravascular Doppler guide wire in patients with peripheral arterial occlusive disease. METHODS: Measurements were done prior to and following angioplasty in 22 ...
Blann A D - - 1998
Development of an abdominal aortic aneurysm (AAA) may be a product of generalised atherosclerosis. If that is indeed the case, we would expect similarities in various risk factors and other markers in common with occlusive peripheral arterial disease (peripheral arterial disease), and less congruity with healthy controls. To test this ...
Aly S - - 1998
BACKGROUND: The aim of this study was to assess the accuracy of duplex imaging, compared with arteriography, in detecting arterial disease distal to the renal arteries. METHODS: Some 177 legs were studied in 90 patients (59 men, 31 women; median age 68 years) with peripheral arterial disease. Each patient had ...
Tetzlaff J E - - 1998
PURPOSE: Spinal anaesthesia is selected for many lower extremity surgical procedures each year in the United States with a high degree of safety and efficacy. Even when adverse neurological outcomes have occurred, anatomical abnormality or coagulopathy have been implicated in the majority of cases. Epinephrine is used in high concentrations ...
Hite S H - - 1998
A 10-month-old boy with a known diagnosis of tuberous sclerosis presented with axillary and brachial masses. Cross-sectional imaging with computed tomography, magnetic resonance, and ultrasound demonstrated unsuspected aneurysms of the axillary and brachial arteries. The results of these studies significantly changed the preoperative planning for this patient, who was scheduled ...
Jahns R - - 1998
The case of a 66-year-old woman with a primary cardiac osteosarcoma is described. These distinctly rare malignant tumors arise preferentially in the left atrium. Clinically, they often present symptoms of both, intramural and intracavitary neoplasm in addition to general weakness, recurrent breast pain, and dyspnea. As shown in the present ...
Rubano J J - - 1998
Multiple conditions, such as peripheral atherosclerosis, systemic lupus erythematosus, polyarteritis nodosa, and dermatomyositis, predispose a patient to arterial insufficiency of the lower extremities and subsequent formation of nonhealing wounds. This article will review the pathophysiology of these conditions, identify the unique physical characteristics of each, and describe the diagnostic tests ...
Salenius J P - - 1998
Near-infrared Raman spectroscopy provides an important new means of analyzing the chemical composition of the arterial wall. The objective of this study was to show that Raman spectroscopy can be used to evaluate the lipid and calcium salt contents of human peripheral arteries. The results extend a recently developed Raman-based ...
Gutierrez A - - 1998
Two patients with cocaine-induced peripheral vascular occlusive disease are presented. A 37-year-old man was admitted to the hospital for evaluation of severe pain and numbness of his feet. He had used cocaine prior to admission. Arteriography showed bilateral occlusions of superficial femoral, popliteal, and trifucation arteries. Despite repeated infusions of ...
de Vries S O - - 1998
The objectives of this study were (1) to determine the incidence of contralateral symptoms in patients with a unilateral intervention for peripheral arterial occlusive disease and (2) to identify characteristics that predict these symptoms. We included patients who had a unilateral surgical or percutaneous intervention for peripheral arterial occlusive disease ...
White C J - - 1998
PURPOSE: To report the initial results of a newly designed catheter for percutaneous circumferential atherectomy in patients with lower extremity atherosclerotic occlusive disease. METHODS: The Pullback Atherectomy Catheter (PAC) is an over-the-wire device that circumferentially debulks atherosclerotic lesions in peripheral arteries up to 6 mm in diameter. Pullback atherectomy with ...
- - 1998
The aim of this paper is to develop an intercontinental consensus on the use of thrombolytic therapy in occlusive peripheral arterial disease affecting lower limbs. A working party of self-designated angiologists, hematologists, interventional radiologists, and vascular surgeons of Europe and North America convened at 4 closed meetings. All published data ...
Tobias J D - - 1998
PURPOSE: To determine the accuracy of the Paratrend 7 monitor inserted into a peripheral vein in providing continuous measurements of PCO2 and pH in children with respiratory failure. METHODS: In a prospective, case series at a University based PICU in a tertiary referral hospital and following informed consent, the Paratrend ...
Knight J K - - 1997
Sudden occlusion of a peripheral artery by embolization or acute thrombosis results in acute ischemia. This is most commonly associated with sudden onset of severe pain, numbness and pallor. Chronic ischemia from peripheral vascular disease results in intermittent claudication. We present a case of peripheral embolization from a left ventricular ...
Majewski W - - 1997
BACKGROUND: Thirty-five patients with TAO and 35 with ASO have been studied. To determine differences between these two arterial diseases, we used clinical criteria, arteriographic and morphological methods. The peripheral (below the bifurcation of the popliteal artery) angiographic changes were found in TAO with 94% sensitivity, 94% specificity and with ...
Lund F - - 1997
In peripheral arterial occlusive disease (PAOD), and particularly in critical limb ischaemia, fluorescence recording of the skin after i.v. injection of sodium fluorescein provides an overviewing functional imaging of regional blood perfusion as revealed by a continuous, almost geographical, mapping of changes in the dynamic fluorescence pattern. Based on the ...
Birnbaum Y - - 1997
In this review we present the current data on remodeling, based on in vivo ultrasound imaging or postmortem histologic analysis of native peripheral and coronary arteries from animal models and studies in patients (coronary artery saphenous vein bypass grafts, lesions of restenosis after balloon angioplasty and other catheter-based interventions). Histologic ...
Rubio A - - 1997
Cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL) is a non-arterio-atherosclerotic, non-amyloidotic arteriopathy affecting preferentially the small arteries and arterioles of the brain. The morphologic hallmark is the presence of a characteristic granular alteration of the arterial media that ultrastructurally corresponds to the accumulation of electron-dense material surrounding ...
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