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Schulman Joshua M - - 2009
We present a young girl with a diffuse, macrocystic lymphatic malformation with associated venous dilation involving the left lower pulmonary lobe and mediastinum. Recurrent hemoptysis necessitated left lower lobectomy. This is the first reported case of a macrocystic lymphatic lesion with venous anomalies located within the parenchyma of the lung.
Toftegaard M - - 2009
OBJECTIVE: This paper evaluates a method in which arterial values of pH, carbon dioxide tension (Pco(2)) and oxygen tension (Po(2)) calculated from venous values and pulse oximetry are compared with simultaneously measured arterial values. METHODS: 103 adult patients from three departments (pulmonary medicine, thoracic intensive care and multidisciplinary intensive care) ...
Fugate Mark W - - 2009
Thoracic outlet syndrome (TOS) is a condition caused by compression of the neurovascular structures leading to the arm passing through the thoracic outlet. There are three distinct types of TOS: neurogenic (95%), venous (4%-5%), and arterial (1%). Treatment algorithms depend on the type of TOS. Although statistically the most common ...
Iizuka Tomoya - - 2009
Heartworm infection with caval syndrome was detected in a thirteen-year-old male cat. However, removal of the heartworms via a jugular venotomy was infeasible because the size of the jugular vein limited our ability to use flexible alligator forceps. Therefore, a right atriotomy using total venous inflow occlusion was performed to ...
Di Fabio Francesco - - 2009
Venous and arterial thromboembolism constitutes a significant cause of morbidity and mortality in patients with inflammatory bowel disease. The most common thrombotic manifestations are lower extremity deep vein thromboses with or without pulmonary embolism. Occasionally, thromboembolic events occur in the main abdominal vessels, such as the portal and superior mesenteric ...
Mutsuga Masato - - 2009
Pulmonary venous obstruction (PVO) after correction of total anomalous pulmonary venous connection (TAPVC) frequently occurs due to intimal-hyperplasia and the required re-operation. We have developed a novel sustained-release drug delivery system, using Tacrolimus-eluting biodegradable nano-fiber (TEBN). It consists of nano-scale fiber composed of biodegradable polymer and Tacrolimus. This study evaluated ...
Goldberg Morgan Roth - - 2009
Properly placed central venous catheters have been effective in establishing prolonged access for total parenteral nutrition infusion in ill neonates. However, malposition of the catheter may lead to lethal complications. Malposition and infusion into the epidural venous plexus is most commonly diagnosed on the basis of radiographs and has been ...
Wakefield Thomas W - - 2009
Venous thromboembolism (VTE) accounts for an estimated 900,000 cases of deep venous thrombosis (DVT) and pulmonary embolism (PE) yearly, resulting in approximately 300,000 deaths [1]. For the past 150 years, Virchow's triad has encompassed the elements of venous thrombogenesis, including stasis, changes in the vessel wall, and thrombogenic changes in ...
Loukas Marios - - 2009
Cardiac veins have long stood in the shadow of their more extensively studied counterparts, the coronary arteries. The clinical importance of the coronary venous system, nonetheless, should not be underestimated. Intricate and beneficial therapeutic options are increasingly being developed that depend on knowledge of the structure of this venous network. ...
Kim Kwang Seog - - 2009
Microsurgical ear replantation is a significant challenge because vessel sizes are diminutive. Furthermore, as ear vessels are larger in the medial portion than in the lateral portion, microsurgical replantation of a replant including only the helix is extremely difficult. The authors replanted a partial helix of the ear using a ...
Prandoni Paolo - - 2009
An increasing body of evidence suggests the likelihood of a link between venous and arterial thrombosis. The two vascular complications share several risk factors, such as age, obesity, diabetes mellitus, blood hypertension, hypertriglyceridemia, and metabolic syndrome. Moreover, there are many examples of conditions accounting for both venous and arterial thrombosis, ...
Panagiotopoulos V - - 2009
Tentorial dural arteriovenous fistulas (tDAVF) clinically present usually with subarachnoid and/or intraparenchymal hemorrhage. Reported rates range from 58% to 92% and neurological deficits occur in 79% to 92% of patients. This is due to venous congestion resulting from retrograde leptomeningeal venous drainage, which rarely, can be clinically silent. A 69-year-old ...
Wang Shigang - - 2008
When conventional gravity siphon venous drainage cannot achieve satisfactory venous drainage during minimally invasive cardiac and neonatal surgeries, assisted venous drainage techniques are needed to ensure adequate flow. One assisted venous drainage technique, vacuum-assisted venous drainage (VAVD), the aid of a vacuum in the venous reservoir, is now widely used ...
Lavoie Pascale - - 2008
INTRODUCTION: To evaluate the feasibility of performing a functional cerebral venous outflow blockage in two large animals species, the swine and the baboon, for elaboration of venous hypertension models. METHOD: Cerebral venous outflow pathways were identified on angiogram and venography of three swine and two baboons, and potential approaches to ...
Nielsen P F - - 2008
Patients undergoing open-heart surgery may, post-operatively, suffer from neurological disorders due to microbubbles created during extracorporeal circulation. Venous air is not completely removed in open hard-shell venous reservoirs. We, therefore, investigated the relationship between venous reservoir blood level and the amount of microbubbles in different commercially available reservoirs for comparison ...
dela Paz Nathaniel G - - 2009
Vascular endothelial cells (ECs) form the inner lining of all blood vessels from the largest artery and veins, viz., the aorta and venae cavae, respectively, to the capillaries that connect the arterial and venous systems. Because these two major conducting systems of the cardiovasculature differ functionally, it is not surprising ...
Aitsebaomo Julius J Division of Cardiology and Carolina Cardiovascular Biology Center, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-7126, - - 2008
The molecular differences between arteries and veins are genetically predetermined and are evident even before the first embryonic heart beat. Although ephrinB2 and EphB4 are expressed in cells that will ultimately differentiate into arteries and veins, respectively, many other genes have been shown to play a significant role in cell ...
Ibrahim Irwani - - 2011
Background: Because arterial punctures are more painful, venous blood gas analysis has been proposed as an alternative. Objectives: To determine if venous pCO(2) can replace arterial pCO(2) in emergency patients using a bedside blood gas analyzer. Methods: This is a cross-sectional study. We recruited patients who were deemed by the ...
Schoevers Jaco - - 2009
Conventional pulse oximetry has limited accuracy in measuring blood oxygen saturation in low-saturation and -perfusion scenarios. This limits the application of pulse oximetry in patients suffering from peripheral vascular afflictions. We present a novel pulse oximetry system that proposes solutions to these low-saturation and -perfusion scenarios by inducing an artificial ...
Unruh Kenneth P - - 2008
Objectives of this study include identification of lumbosacral venous variations, designation of a critical area of dissection for surgical exposure, and comparison between both male/female and right/left-sided anatomy. Attempts were made to provide anatomic nomenclature that accurately describes these structures. Thirty-eight iliolumbar venous systems in 20 cadavers (11 females/9 males) ...
Seo Sang-Hee - - 2008
Venous aneurysm can be classified into superficial or deep and secondary or primary. The aim of this study was to introduce primary venous aneurysm of the superficial venous system and to report the experiences treating it with sclerotherapy. A retrospective study with 120 cases of venous dilatation detects 4 patients. ...
Morimoto Akira - - 2009
Severe congestion with petechiae and/or small hemorrhages over a wide area consisting of the subcutaneous and mucous level of the head and neck is observed in most cases of strangulation and positional asphyxial death. Congestion present above the strangulation mark is accepted as a vital reaction. Although the congestion results ...
Martinelli Ida - - 2008
Venous thromboembolism may involve venous sites other than the lower limbs, such as cerebral, splanchnic, and upper limb veins. Although uncommon, these thromboses may be clinically severe and challenging for caregivers. In this review, the main pathogenic, clinical, and therapeutic features of thromboses in rare venous sites are discussed. Even ...
Toft Mette Helene - - 2008
In order to elucidate the circulatory and respiratory effects of a newly developed abdominal compression binder 25 healthy, normal weight subjects were studied. In supine position the central haemodynamics were measured and estimated with a Finapress device. Lower extremity venous haemodynamics were measured in supine position with venous occlusion plethysmography. ...
Lee Jason T - - 2008
Superficial venous thrombophlebitis (SVT) is characterized as a localized inflammatory condition of the venous vessels underlying the skin. It arises from thrombosis of a superficial vein, and clinical presentation usually involves pain, erythema, and tenderness at the sites of inflammation. Although the condition is usually self-limited and not serious or ...
Paolini David J - - 2008
Venous obstruction is an underappreciated and often unrecognized component of the pathophysiology of symptomatic chronic venous disease (CVD). Moreover, standard methods used to detect venous obstruction, such as maximal venous outflow, are inadequate as they typically test patients at rest and in the supine position when the pathophysiology of CVD ...
Misra Sanjay - - 2008
Because fetuin-A is a cytokine with multifunctional effects on vascular smooth muscle cells and fibroblasts, the authors examined the course of its expression in early venous stenosis formation in a porcine model of chronic renal insufficiency with polytetrafluoroethylene (PTFE) arteriovenous (AV) hemodialysis grafts. Pigs had chronic renal insufficiency created by ...
Trovato Matthew J - - 2008
Successful microvascular ear replantation is well described, and often involves the use of arterial inflow anastomoses with leeches and systemic anticoagulation to augment outflow. Failed replantation attempts have also been published, with most of the failures attributed to venous drainage problems. A case of successful replantation of an ear is ...
Polguj M - - 2008
The aim of the study was to compare the blood vessel network of the human and bovine male gonads, paying special attention to differences resulting from mediastinum testis localisation. Two groups of specimens were compared. Each group consisted of 50 corrosive die casts of the testicular and spermatic cord vessels ...
Gilkeson Robert C - - 2008
Multislice computed tomography technology has enabled sophisticated insights into the evaluation of collateral venous pathways in the thorax. A small but well-established body of literature has described the multiple venous pathways in patients with central venous obstruction. In unusual circumstances, however, physiologically maladaptive pathways have been described involving systemic to ...
Barker Emma V - - 2008
PURPOSE OF REVIEW: The use of microvascular anastomotic devices remains controversial in head and neck reconstructive surgery. Although more acceptable in venous anastomosis, their use in arterial anastomosis remains limited. We review the literature to evaluate the evidence both for and against their use, in both venous and arterial anastomoses. ...
Hua Hong T - - 2009
Phlegmasia cerulea dolens is a devastating complication of massive deep venous thrombosis, which is clinically characterized by massive lower extremity tissue edema and subsequent arterial insufficiency. These experiments evaluated the local tissue effects of acute global venous obstruction combined with partial arterial ischemia. Experiments were performed to assess the effects ...
Paolini David J - - 2008
Lower extremity chronic venous disease is due to venous hypertension resulting from reflux and/or obstruction. Studies of venous valvular function have validated and quantified valve closure times defining normal and abnormal valve function, and investigators have categorized the amount of venous reflux with validated criteria. However, hemodynamics of venous outflow ...
Power K T - - 2009
Occasionally in plastic surgery immediate microvascular arterial repair is not possible. This occurs when distal vessels in the extremities are extensively damaged or thrombosed. If there is some intact venous anatomy it may be possible to maintain adequate perfusion for viability using a gravitational retrograde venous perfusion technique, until collateral ...
Williamson J M L - - 2008
INTRODUCTION: Popliteal venous aneurysms are rare and can cause recurrent pulmonary emboli despite adequate anticoagulation. REPORT: A 43-year old patient with known antiphospholipid syndrome developed an extensive pulmonary embolus and ischaemic stroke despite anticoagulation. Duplex ultrasound confirmed a right popliteal venous aneurysm containing non-adherent multi-layered thrombus. At operation an 8 ...
Schilling R F - - 2008
BACKGROUND: It is probable that the variety and frequency of delayed adverse vascular events after splenectomy are underappreciated. Splenectomy is performed for a wide variety of conditions, and delayed postsplenectomy hazards are not often studied. OBJECTIVE: To estimate the relative risk of adverse vascular events in members of hereditary spherocytosis ...
Ferroli Paolo - - 2008
OBJECTIVE: We describe the intraoperative findings and results of an indocyanine green (ICG) video angiographic study in a patient with a developmental venous anomaly of the petrous veins. CLINICAL PRESENTATION: A 56-year-old man sought treatment after experiencing lacerating facial pain on the right side for almost 2 years. His neurological ...
Al-Kilani Alia - - 2008
The adult vasculature is comprised of three distinct compartments: the arteries, which carry blood away from the heart and display a divergent flow pattern; the capillaries, where oxygen and nutrient delivery from blood to tissues, as well as metabolic waste removal, occurs; and the veins, which carry blood back to ...
Imanishi Nobuaki - - 2008
Veins of the dermis have been investigated mainly by histological methods in the fields of anatomy and histology, and a large number of schemata of the veins have been depicted in a variety of textbooks. However, the schemata are usually two-dimensional and it is therefore difficult to envisage the actual ...
Shad Amjad - - 2008
Perimesencephalic nonaneurysmal haemorrhage (PMNH), a term first coined in 1985, is a diagnosis of exclusion. It is considered a benign form of subarachnoid haemorrhage with a good prognosis and a low risk of rebleeding. Its precise aetiology has not yet been determined. Haemorrhage of venous origin has been proposed as ...
McBane Ii Robert D - - 2008
The literature is filled with randomized controlled trial data to guide most steps in managing patients with deep venous thrombosis of the extremities or pulmonary embolism. Venous thrombosis, however, is not limited to these locations and may involve the cerebral venous sinuses, renal veins, splanchnic veins, and ovarian veins. The ...
Vergouwen Mervyn D I - - 2008
PURPOSE OF REVIEW: Patients with acute stroke and traumatic brain injury are at risk to develop venous thromboembolism. This review analyzes the available literature to propose guidelines for the prevention and treatment of venous thromboembolism in these groups of patients. RECENT FINDINGS: In acute ischemic stroke, low-dose low-molecular-weight heparin has ...
Lowe Gordon D O - - 2008
Arterial and venous thromboses have traditionally been viewed as distinct conditions, with differences in risk factors, pathology and treatment. However, recent epidemiological studies have suggested associations between venous thromboembolism, arterial thromboembolism (myocardial infarction and stroke) and atherosclerosis. While several biological mechanisms might contribute to these associations, common risk factors for ...
Weaver Fred A - - 2008
Until recently, acute arterial or venous thromboses were routinely managed with surgical intervention. With the development of effective thrombolytic pharmacologic agents and improved modes of delivery of these agents to the target site, surgery is no longer the only option. Greater understanding and knowledge about the finely orchestrated, counterbalanced processes ...
Carr Sandra C - - 2008
Venous ulceration of the lower extremities is a common and often disabling condition. Venous ulcers are the result of a chronic inflammatory condition caused by persistent venous hypertension. Therapy is directed at counteracting the chronic inflammation in the tissues and at decreasing ambulatory venous hypertension in the area. Compression therapy ...
Kilgallon Conor - - 2008
Arterial and venous blood-gas and acid-base values were established from a herd (n = 19; 14 male, 5 female) of semi-free-ranging Arabian oryx (Oryx leucoryx) in the United Arab Emirates. The animals were restrained with the use of a modified raceway incorporating a commercially available handling crate. Statistically significant differences ...
Kassab Ghassan S - - 2008
The potential of the coronary veins for revascularization has been evaluated by many investigators for more than a century. The major hurdle has been the damage of veins during sudden exposure to arterial pressure. The solution to this problem has typically involved the use of intricate and complicated apparatus and ...
van den Wijngaard J P H M - - 2008
BACKGROUND: The twin-to-twin transfusion syndrome (TTTS) is a severe complication of monochorionic twin pregnancies, caused by a net inter-twin transfusion of blood from one fetus (the donor) towards the other fetus (the recipient) through placental anastomoses. TTTS is driven by unidirectional arterio-venous anastomoses, and mitigated by bidirectional arterio-arterial or veno-venous ...
Bateman Grant A - - 2008
A reduction in the proportion of the arterial inflow drained by the superior sagittal sinus in idiopathic intracranial hypertension (IIH) patients without stenoses has been noted and this has suggested elevated collateral flow. This study defines the interaction between arterial inflow and venous outflow in patients with outflow stenoses and ...
Abend Nicholas S - - 2008
A previously healthy 2-year-old boy presented with the acute onset of left middle cerebral artery syndrome. Evaluation revealed subarachnoid hemorrhage and a vein of Galen aneurysmal malformation with angiographic reflux into the deep venous system. Analysis of the angioarchitecture of the lesion demonstrated the basis of the hemorrhage to be ...
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