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Savard Martin - - 2010
BACKGROUND: In Canada, ancillary tests, such as selective four vessels angiography (S4VA), are sometimes necessary for brain death (BD) diagnosis when the clinical exam cannot be completed or confounding factors are present. Recent Canadian guidelines assert that brain death is supported by the absence of arterial blood flow at the ...
Chou Chih-Wei - - 2010
During zebrafish embryogenesis, the endothelium signals to emergent bilateral interrenal primordia to converge toward the midline, yet the merged interrenal tissue has been found to be situated lateral to the midline. We show in this study that bilateral interrenal tissue clusters fused at the central midline, before relocating laterally to ...
Talbot Simon G - - 2010
Wound coverage with pedicled (local, regional, or distant) or free flaps is commonplace throughout plastic surgery. However, irrespective of the method of tissue transfer or type of tissue being transferred, inflow and outflow remain key parameters for success. Much has been written detailing complex tissue transfers and delineating arterial and ...
Gillespie David - - 2010
Recent advances in the treatment of venous insufficiency have led to an increased utilization of venous ultrasonography by practitioners. Knowing the fundamentals of anatomy and physiology are essential to be successful. This article reviews the common uses of ultrasonagraphy for the examination of the lower extremity venous system.
Wu Wei-wei - - 2010
We report a ruptured venous aneurysm, an unusual complication of venous arterialization for lower limb ischemia in Buerger's disease. Arteriovenous shunt ligation and aneurysm resection were performed successfully, with the distal limb perfusion preserved. By our very limited experience, venous arterialization may be ineffective on improving lower limb ischemia with ...
Passari G - - 2010
Retroperitoneal leiomyosarcoma arising in, or involving, the inferior vena cava or the iliac vein are infrequent tumours. They are usually treated by "en-block" surgery. Venous reconstruction is usually not needed, since collateral circulation can adequately offset the main vessel flow. However, in rare cases, collateral circulation may be insufficient. The ...
Obladen Michael - - 2010
A human being born without heart and head, i.e., the acardius/acranius malformation, has been described since antiquity. Superstition and fear made it a mystical disorder, a sign of God's wrath. The inquisition ruled that acranic infants should not be baptized and located the soul in the brain. Acardia was not ...
Umeoka Shigeaki - - 2010
PURPOSE: To evaluate whether the accuracy of local extension (T-staging) of esophageal carcinoma could be improved with addition of arterial phase images by use of multi-detector row computed tomography. MATERIALS AND METHODS: The institutional review board approved this study, and all the subjects provided informed consent. Dual-phase (the arterial and ...
Leavens Teresa L - - 2010
Nanomaterials are increasingly playing a role in society for uses ranging from biomedicine to microelectronics, however pharmacokinetic studies, which will be necessary for human health risk assessments, are limited. Tissue distribution, one component of pharmacokinetics, can be assessed by quantifying arterial extraction of materials in an isolated perfused porcine skin ...
Lee A B - - 2010
The truncular venous malformation (VM) represents an embryologically defective vein where developmental arrest has occurred during the vascular trunk formation period in the 'later stage' of the embryonic development. A relatively simple truncular VM lesion such as a venous web at the hepatic venous outlet causes portal hypertension giving a ...
Morgan Mary Anne M - - 2010
Nitric oxide deficiency may contribute to microvascular dysfunction in sepsis. Current physiologic paradigms contend that nitrite and/or S-nitrosohemoglobin mediate intravascular delivery of nitric oxide. These nitric oxide metabolites are purportedly consumed during hemoglobin deoxygenation, producing nitric oxide and coupling intravascular nitric oxide delivery with metabolic demand. Systemic nitrite and S-nitrosohemoglobin ...
Silva A M V - - 2010
Microalbuminuria in Type 2 diabetes is associated with arterial endothelial dysfunction, but the venous bed was never evaluated. To study the endothelial function in the venous and arterial bed in patients with Type 2 diabetes with normoalbuminuria or microalbuminuria. We evaluated 28 patients with Type 2 diabetes, glycated hemoglobin (HbA1c) ...
Numajiri Toshiaki - - 2011
The vascular supercharge (additional microvascular anastomosis) has rarely been used for free flaps, and the blood circulation in the transferred tissue has not been recorded. We have made double vascular anastomoses during free jejunal transfer to reduce the possibility of loss of the flap from vascular occlusion. To evaluate the ...
Lang Irene - - 2010
Chronic thromboembolic pulmonary hypertension (CTEPH) comprises organizing thrombotic obstructions in the pulmonary arteries. While roughly 40% of CTEPH cases are not preceded by a venous thromboembolic event, 0.1-5.1% of acute pulmonary thromboemboli evolve into organized obstructions of the pulmonary artery. In patients with predominantly proximal disease, surgical pulmonary endarterectomy provides ...
Stolz Erwin - - 2010
The aim of this study was to analyse the cerebral venous outflow in relation to the arterial inflow during a Valsalva manoeuvre (VM). In 19 healthy volunteers (mean age 24.1 +/- 2.6 years), the middle cerebral artery (MCA) and the straight sinus (SRS) were insonated by transcranial Doppler sonography. Simultaneously ...
Corley Gavin J - - 2010
The presence of a venous pumping mechanism in the foot may be significant for venous return in the lower extremities. However, there has been a lack of conclusive research in the area to date and controversy still exists over the detailed anatomy and physiologic mechanism of the venous foot pump. ...
Sadr Amir H - - 2010
Isolated venous aneurysms of the foot are rare. We report a case of venous aneurysm of the dorsal venous arch of the foot with an unusual traumatic etiology. This is a case report of a female patient with a gradually enlarging swelling on the dorsum of her foot located over ...
Jandali Shareef - - 2010
Microvascular anastomosis is one of the more critical aspects of free flap surgery. A safe, effective, and expedient method for venous anastomosis minimizes flap ischemia time, is easier on the surgical team, and saves costly operating room time. The authors report on their experience using the Synovis microvascular anastomotic coupling ...
Scaramuzzi R J - - 2010
Two experiments were carried out on ewes with ovarian autotransplants to estimate the ovarian uptake of glucose and production of lactate. The first was carried out in the luteal phase of the oestrous cycle. Samples of carotid arterial, ovarian venous and jugular venous blood were collected simultaneously for glucose analysis. ...
Sode Birgitte F - - 2010
RATIONALE: Idiopathic interstitial pneumonia is characterized by pulmonary fibrosis and high mortality. OBJECTIVES: We examined the association between ever-diagnosed venous thromboembolism and risk of incident idiopathic interstitial pneumonia. Venous thromboembolism was taken as a proxy for a procoagulant state in an individual. METHODS: We conducted a study of the entire ...
Key Nigel S - - 2010
Venous thromboembolism, comprising deep vein thrombosis and pulmonary embolism, is a common disorder with at least 250 000 new events occurring each year in the United States alone. Treatment of venous thromboembolism includes anticoagulation, which is achieved initially with the use of a parenterally administered agent followed by a more ...
Hussey A J - - 2010
Replantation of an avulsed ear was completely successful with only arterial repair (to the superficial temporal artery) and the use of medicinal leeches.
Sharma Jayendra - - 2010
A newborn with antenatal diagnosis of fetal hydrops at 36 wk of gestation, presented with congestive heart failure (CHF) and generalized edema. Computed tomographic angiography showed marked dilatation of cerebral duro-venous system including vein of Galen (VOG), straight sinus, torcula and transverse sinus without evidence of arteriovenous fistulae at the ...
Maempel Julian Fz - - 2010
Venous thromboembolism is a very common pathological process for which there are many well known (and less well-known) predisposing factors. Likewise, olanzapine is a commonly used anti-psychotic medication.We present the case of a young Somali gentleman who developed venous thromboembolic disease after an overdose of olanzapine. The diagnosis was only ...
Lim Chung S - - 2010
INTRODUCTION: This paper aims to summarize the scientific rationale and future perspectives in the development of effective matrix metalloproteinase (MMP) modulators in the management of patients with arterial and venous disease. METHODS: Pubmed, Embase and Cinahl databases were searched using the search terms 'MMP', 'matrix metalloproteinase', 'arterial disease', 'venous disease', ...
Enajat Morteza - - 2010
BACKGROUND: Venous complications have been reported as the more frequently encountered vascular complications seen in the transfer of deep inferior epigastric artery (DIEA) perforator (DIEP) flaps, with a variety of techniques described for augmenting the venous drainage of these flaps to minimize venous congestion. The benefits of such techniques have ...
Courtney D Mark - - 2010
Prediction rules for pulmonary embolism use variables explicitly shown to estimate the probability of pulmonary embolism. However, clinicians often use variables that have not been similarly validated, yet are implicitly believed to modify probability of pulmonary embolism. The objective of this study is to measure the predictive value of 13 ...
Rozin Alexander P - - 2010
An idea of arteriovenous shunts (AVS) was proposed for explanation of dynamic regulation of oxygenation and venous hyperoxia. A formula enabling calculation of AVS and real CO2 production has recently been derived by comparing data of arterial and venous blood gases. Regarding venous hyperoxia, there is a need to differentiate ...
Lim S M - - 2009
Summary: Spinal dural arteriovenous fistulas (AVFs) are rare vascular malformations in the spinal dura, fed by dural branches of the radicular arteries, and drain primarily into intradural venous plexuses. They may cause elevated medullary venous pressure and produce a progressive myelopathy. We describe a case of AVF in the epidural ...
Yeh Poh-Shiow - - 2010
Venous hypertension in lateral sinuses resulting from dural arteriovenous fistula (DAVF) and venous sinus thrombosis (VST) can manifest with severe neurological deficits, such as infarction or intracerebral hemorrhage. It has been proved that venous hypertension plays a significant role in the evolution and progression of DAVF and VST. The definite ...
Gresele Paolo - - 2010
The association between venous thromboembolism and arterial thrombosis has emerged as consistent clinical observation in the last few years. While several experimental, epidemiological and pharmacologic studies support this association, the initial pathophysiological mechanism linking these two clinical conditions remains to be established. This review discusses the pathophysiological bases and a ...
Raoufy Mohammad Reza - - 2011
Arterial blood gas (ABG) has an important role in the clinical assessment of patients with acute exacerbations of chronic obstructive pulmonary disease (AECOPD). Because of ABG complications, an alternative method is beneficial. We have trained and tested five artificial neural networks (ANNs) with venous blood gas (VBG) values (pH, PCO(2), ...
Wen Chaoyang - - 2009
OBJECTIVE: To discuss the characteristics of saccular neck venous aneurysm on color duplex sonography. METHODS: We retrospectively reviewed 12 cases of saccular neck venous aneurysm confirmed by either venogram or surgical pathology. Clinical information, physical exam of the neck, and characteristics of saccular neck venous aneurysm on color Doppler sonography ...
Shankar Jai Jai Shiva - - 2009
BACKGROUND: Cortical dysplasias are rarely associated with vascular anomalies. They are usually associated with venous anomalies or in few cases with both arterial and venous anomalies. METHODS: Twenty-six year old female presented with history of headache showed cortical dysplasia associated with pure arterial dysplasia in the absence of any associated ...
Herbert Shane P - - 2009
Blood vessels form de novo (vasculogenesis) or upon sprouting of capillaries from preexisting vessels (angiogenesis). With high-resolution imaging of zebrafish vascular development, we uncovered a third mode of blood vessel formation whereby the first embryonic artery and vein, two unconnected blood vessels, arise from a common precursor vessel. The first ...
Tain Rong-Wen - - 2009
To assess the influence of arterial and venous vascular compliances in the neck region on the measurement of the change in intracranial volume during the cardiac cycle. Arterial and venous blood flows were imaged by MRI phase contrast at two different locations, one close to the skull base (upper) and ...
Rozen Warren M - - 2009
Despite improving outcomes, venous problems in the harvest of deep inferior epigastric artery perforator (DIEP) flaps remain the more common vascular complications. However, it is apparent that the venous anatomy of the anterior abdominal wall has not been described to the same extent as the arterial anatomy. Previous anatomical studies ...
Hudacko Andrea - - 2009
Miniaturizing cardiopulmonary bypass (CPB) circuits to reduce hemodilution and allogenic blood product administration is common in cardiac surgery. One major concern associated with smaller CPB circuits is a possible increase in gaseous microemboli (GME) sent to the cerebral vasculature, which is exacerbated by vacuum-assisted venous drainage (VAVD). The use of ...
Lee Timmy - - 2009
Hemodialysis vascular access dysfunction is a major cause of morbidity and mortality in hemodialysis patients. The most common cause of this vascular access dysfunction is venous stenosis as a result of venous neointimal hyperplasia within the perianastomotic region (arteriovenous fistula) or at the graft-vein anastomosis (polytetrafluoroethylene, or PTFE, grafts). There ...
Naito Yuji - - 2010
The extracardiac conduit procedure is widely used for patients with heterotaxy syndrome with complex systemic and pulmonary venous anomalies; however, it lacks conduit-growth potential and requires long-term anticoagulation. We present the intracardiac Fontan procedure, which eliminates the above-mentioned disadvantages. Twenty-four patients (mean age, 4.1 years; weight, 13.0 kg) with heterotaxy ...
Dobesh Paul P - - 2009
Venous thromboembolism, a condition that includes deep vein thrombosis and pulmonary embolism, is a significant medical problem that affects more than 1 million patients each year. In addition to the immense impact of venous thromboembolism on morbidity and mortality, the economic burden of the disease is considerable, costing the health ...
Zamboni Paolo - - 2009
A new nosologic vascular pattern that is defined by chronic cerebrospinal venous insufficiency (CCSVI) has been strongly associated with multiple sclerosis. The picture is characterized by significant obstacles of the main extracranial cerebrospinal veins, the jugular and the azygous system, and by the opening of substitute circles. The significance of ...
Asciutto G - - 2009
We describe the case of a 71 year-old male patient undergoing haemodialysis who presented with severe symptoms of venous hypertension at the left upper extremity due to subclavian and innominate vein obstruction. The patient had a well functioning ispilateral angioaccess. The pain and disabling swelling of the upper extremity developed ...
Amodeo Antonio - - 2009
OBJECTIVES: Two innovative surgical approaches addressing systemic venous anomalies in single-ventricle patients are evaluated. METHODS: Between 2003 and 2007, 7 patients underwent a unifocal bilateral bidirectional cavopulmonary anastomosis, and 5 patients underwent a hepatoazygos venous connection associated with a previous (n = 4) or concomitant (n = 1) Kawashima operation. ...
Wongyingsinn Mingkwan - - 2009
BACKGROUND: Because extreme venous potassium abnormality can be life threatening, rapid measurement of potassium level is essential. Traditional biochemical analysis for venous potassium takes time and delays management in seriously ill patients. Analysis form arterial blood gas (ABG) may be an alternative method that is faster. OBJECTIVE: To determine agreement ...
Ko Sang-Bae - - 2009
We report a patient with carotid cavernous fistula (CCF) presenting with cervical myelopathy. The patient initially presented with ocular pain accompanied by binocular diplopia and was diagnosed with Tolosa-Hunt syndrome at another institution. This patient experienced long-standing venous hypertension due to the delay in diagnosis. Posterior venous drainage from the ...
Franchini Massimo - - 2009
Selective inhibitors of specific coagulation factors represent a new class of antithrombotic agents, designed to overcome the limitations of traditional anticoagulants. Available clinical studies indicate that the most promising new anticoagulants are those selectively targeting factor Xa and thrombin. Typically, the standard steps for clinical evaluation of new anticoagulants are ...
Gaweesh Ahmed S - - 2009
Venous valve incompetence role as the primary pathology occurring in patients with chronic venous diseases (CVD) has long been exaggerated. Management strategies based on the current pathophysiological concepts are far from perfect. A novel concept is introduced describing the importance of patency of axial venous system with "Pressure gradient model" ...
Jacobson Adam S - - 2009
OBJECTIVES/HYPOTHESIS: The successful harvest and transplant of a fibular flap depends on many factors, including healthy inflow and outflow systems. A contraindication to harvesting a fibular flap is disease of the lower extremity arterial system; therefore, preoperative evaluation of the arterial system is routine. Preoperative evaluation of the venous system ...
Kasuya Hiromichi - - 2009
We assessed the usefulness of the separate demonstration of the arterial- and venous phase on 3D-CT angiography (3D-CTA) using a 64-multidetector row CT (MDCT) scanner for the surgery of brain tumors. Nineteen patients with meningiomas (n=11), schwannomas, metastatic brain tumors (n=2 each), glioblastoma multiforme, malignant lymphoma, craniopharyngioma, and embryonal carcinoma ...
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